SITAS

SITAS control transformers from 25 VA to 5 kVA supply industrial control circuits worldwide. Single-phase 4AM models (25–2500 VA) feature multi-tap primaries for 208–690 V input as control, safety isolating, or isolation transformers. Three-phase 4AP (630/1000 VA) and 4AT (4000/5000 VA) models cover larger loads. Screw, cage-clamp, and DIN rail connections are available, with IP54 enclosures on select models. All units comply with IEC/EN 61558; SELV variants provide galvanic isolation for personnel protection.

Products in This Series

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Product	Key Specifications	Action
4AM5542-8ED40-0FA0 Siemens 4AM5542-8ED40 575/550/525V to 230V 800VA Single-Phase PDF	SITAS 4AM5542-8ED40: 800VA control transformer with a high-range multi-tap primary (575/550/525V) stepping to 230V at 3.48A. The larger EI 150/65 core delivers 93 percent efficiency and a 3,400VA S6 short-time rating — over 4x the continuous rating. For industrial control panels on high-line voltage networks.	View Product
4AM6142-8JD40-0FA0 Siemens 4AM6142-8JD40 Six-Tap 415-215V Primary to 230V 1600VA PDF	SITAS 4AM6142-8JD40: 1600VA control transformer with six primary taps spanning 415V down to 215V and dual 115V secondaries for 230V at 6.96A or 115V at 13.91A. The broadest primary voltage coverage in the 4AM6142 series — one model fits installations from 215V to 415V. The 4AM6142 platform delivers 96 percent efficiency and 7,300VA S6 surge.	View Product
4AM4042-5FT10-0FA0 Siemens 4AM4042-5FT10 SITAS Control Transformer, 250VA 500V± PDF	Siemens SITAS 4AM4042-5FT10 single-phase control and isolating transformer rated 250 VA continuous with 850 VA short-time peak. Designed for 500 V industrial mains with ±5% primary taps (475/500/525 V), delivering a stable 230 V secondary at 1.09 A. The IP00 open-frame design mounts on DIN rail or screws, with 89% efficiency and UL/CSA recognition for global panel builds.	View Product
4AM5242-5AT10-0FA1 Siemens SITAS 4AM5242 630VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 630 VA with 400 V primary and 230 V secondary output. Cage-clamp terminals enable fast tool-free wiring — reducing panel assembly time. 2.74 A secondary current with 2350 VA short-term capacity. Primary taps at 380/400/420 V accommodate supply variations. B-class insulation. Compact EI 150/48 core, IP00 construction for enclosed panel mounting.	View Product
4AM6442-8DD40-0FA0 Siemens 4AM6442-8DD40 525/500/480V to 230V 2000VA Control Tra PDF	SITAS 4AM6442-8DD40: 2000VA control transformer with 525/500/480V three-tap primary stepping to 230V at 8.70A. The highest available power at this voltage combination — 96 percent efficiency and 9,700VA S6 surge from the EI 174/102 core. Suits heavy-industrial installations where mains ranges from 480V to 525V and maximum control power is required.	View Product
4AM4842-8DN00-0EA0 Siemens SITAS 4AM4842 500VA Single-Phase Safety Transformer, PDF	SITAS single-phase safety isolating transformer rated at 500 VA with 11-tap primary spanning 208 V to 550 V and 24 V secondary output. 20.8 A secondary current supplies 24 V control circuits, PLCs, sensors, and actuators. 2000 VA short-term capacity with B-class insulation. Compact EI 120/72 core, IP00 construction for enclosed panel mounting.	View Product
4AM4842-5AT10-0FA0 SITAS 500VA Safety Transformer 400/24V Dual, 91% Eff. – Sie PDF	SITAS single-phase safety isolating transformer, 500 VA, primary 400/380 V (adjustable), secondary 24 V plus 2x 12 V. High 91% efficiency, insulation class B, IP00. Screw mounting, 84x95x113 mm, 6.0 kg. For powering large 24 V control circuits and auxiliary supplies from 400 V mains.	View Product
4AM3242-5AV00-0EA0 Siemens 4AM3242-5AV00-0EA0 Delivers a 42VAC Control Circuit f PDF	The Siemens SITAS 4AM3242-5AV00-0EA0 is a 63VA control transformer with a 400V ±5% tapped primary and a 42V secondary — a less common control voltage still specified in certain European machinery standards for operator-accessible circuits. It provides safety isolation per EN 61558-2-6 between the 400V mains supply and the 42V control circuit, with 190VA short-time surge capacity for energizing 42V-rated contactors, relays, and indicator lamps.	View Product
4AM5742-5AT10-0FA1 Siemens 4AM5742-5AT10 400V to 230V 1000VA Cage-Clamp Control PDF	SITAS 4AM5742-5AT10-0FA1: 1,000VA control transformer stepping 400V down to 230V at 4.35A with cage-clamp spring-loaded terminals. Electrically identical to the 0FA0 variant but with tool-free wiring for faster panel assembly. EI 150/90 core, 93 percent efficiency, 5,000VA S6 surge rating.	View Product
4AM4642-5MT10-0FA0 Siemens SITAS 4AM4642 400VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 400 VA (0.4 kVA) with 690 V primary and 230 V secondary output. Designed for heavy industry and mining applications where 690 V mains is standard. Primary voltage taps at 655/690/725 V accommodate supply variations. Screw/tab terminals with screw mount. 1.74 A secondary current with 1440 VA short-term capacity. B-class insulation with compact IP00 construction.	View Product
4AM5542-8JD40-0FA0 Siemens 4AM5542-8JD40 Six-Tap Primary to 230V 800VA Control T PDF	SITAS 4AM5542-8JD40: 800VA control transformer with a six-tap primary (415/400/385/245/230/215V) delivering 230V at 3.48A. The EI 150/65 core handles 3,400VA short-time loads at 93 percent efficiency. Broadest tap range in the 800VA series — one model for worldwide voltage compatibility.	View Product
4AM4842-5AT10-0FB1 Siemens SITAS 4AM4842 500VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 500 VA with 400 V primary and 230 V secondary output. DIN rail mountable with cage-clamp terminals for snap-on installation and fast tool-free wiring. 2.17 A secondary current with 2000 VA short-term capacity. Primary taps at 380/400/420 V. B-class insulation. Compact EI 120/72 core, IP00 construction for enclosed panel mounting.	View Product
4AM4042-5CT10-0FA0 Siemens 4AM4042-5CT10 440V to 230V 250VA Single-Phase Control PDF	SITAS 4AM4042-5CT10: 250VA control transformer designed for 440V shipboard and offshore platform supplies, stepping down to 230V at 1.09A. Ideal for marine auxiliary circuits where the onboard distribution voltage is 440V. 850VA short-time rating and 89% efficiency in a compact IP00 form factor.	View Product
4AM2342-4TN00-0EA1 25VA Safety Isolating Transformer 230/24V, SITAS 4AM2342-4TN0 PDF	Single-phase safety isolating transformer (EN 61558-2-6) with cRUus certification. 230/242V ±5% primary, 24V / 1.04A secondary, 25VA. Cage-clamp terminals, screw mounting, 62×78×79mm. 74% efficiency at rated load, insulation Class B. For control circuits and system power supplies.	View Product
4AM5542-5AT10-0FD0 Siemens SITAS 4AM5542 600VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 600 VA with 400 V primary and 230 V secondary output. IP54 enclosed construction protects against dust and water spray, enabling standalone installation without a separate cabinet. 2.61 A secondary current with 3400 VA short-term capacity. Primary taps at 380/400/420 V. B-class insulation. Enclosed design for industrial environments.	View Product
4AM2642-5AT10-0FA0 Siemens 4AM2642-5AT10 SITAS Control Transformer, 40VA 400V±5 PDF	Siemens SITAS 4AM2642-5AT10 single-phase control transformer rated 40 VA. Steps down 400 V AC industrial mains (±5% taps at 380/400/420 V) to 230 V AC at 0.17 A for control relay coils, contactors, and auxiliary circuits. EI 66 core, 80 × 68 × 75 mm IP00 footprint, approximately 1.0 kg. 76% efficient at 50/60 Hz. UL/CSA recognized for international panel compliance.	View Product
4AM2342-4TN00-0EA0 4AM2342-4TN00-0EA0 25VA Transformer 230V/24V, Siemens PDF	Siemens 4AM2342-4TN00-0EA0 is a 25 VA single-phase safety isolating transformer from the SITAS series, converting 230 V AC to 24 V AC at 1.04 A. EN 61558-2-6 compliant, UL/CSA recognized, Class B insulation. Screw mount, EI 60/20 core, 62×79×78 mm, 0.92 kg.	View Product
4AM3242-5AT10-0FA2 Siemens 4AM3242-5AT10-0FA2 SITAS 63VA Control Transformer — PDF	The Siemens SITAS 4AM3242-5AT10-0FA2 is a 63VA single-phase control transformer sharing the same 400V ±5% primary and 230V secondary as the 5AT10-0FA0, differentiated by its 0FA2 ordering suffix. Safety isolating per EN 61558-2-6 and UL/CSA recognized, it delivers 190VA short-time surge capacity for 230V control circuits in IEC-standard industrial panels. The suffix variation reflects terminal or approval configuration — core electrical specifications are identical to the 0FA0 variant.	View Product
4AM2342-4TN00-0EB0 4AM2342-4TN00-0EB0 25VA Transformer 230V/24V DIN, Siemens PDF	Siemens 4AM2342-4TN00-0EB0 is a 25 VA single-phase safety isolating transformer from the SITAS series, converting 230 V AC to 24 V AC at 1.04 A. EN 61558-2-6 compliant, UL/CSA recognized, Class B insulation. DIN rail mount, EI 60/20 core, 62×79×78 mm, 0.82 kg.	View Product
4AM4642-5AT10-0FA0 Siemens SITAS 4AM4642 400VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 400 VA (0.4 kVA) with 400 V primary and 230 V secondary output. 1.74 A secondary current supplies small control circuits for contactors, relays, and PLC systems. Screw/tab terminals provide secure connections for standard wiring. 1440 VA short-term capacity with B-class insulation. Compact IP00 construction for enclosed panel mounting in industrial automation.	View Product
4AM4342-5FT10-0FA0 Siemens 4AM4342-5FT10 500V to 230V 315VA Single-Phase Control PDF	SITAS 4AM4342-5FT10: 315VA control transformer designed for 500V industrial supply systems, converting to 230V at 1.37A for auxiliary circuits. Common in mining, heavy manufacturing, and IEC 60038 500V distribution networks. 1,120VA short-time rating and 90% efficiency on the EI 105/60 core for demanding environments.	View Product
4AM6442-8ED40-0FA0 Siemens 4AM6442-8ED40 575/550/525V to 230V 2000VA Control Tra PDF	SITAS 4AM6442-8ED40: 2000VA control transformer with a high-range 575/550/525V three-tap primary stepping to 230V at 8.70A. The highest-power SITAS transformer for installations where mains reaches up to 575V, such as Canadian heavy-industrial networks. The 4AM6442 platform delivers 96 percent efficiency and 9,700VA S6 surge capacity.	View Product
4AP2042-8BC40-0HA0 Siemens SITAS 4AP2042 630VA 3-Phase Control Transformer, 400V PDF	SITAS 3-phase control transformer rated at 630 VA with 400 V primary and 289/230 V secondary output. Low inrush current design enables fuseless protection with SIRIUS 3RV circuit breakers, simplifying control panel wiring. IP00 construction for enclosed cabinet mounting in industrial automation applications.	View Product
4AM6442-5FT10-0FA0 Siemens 4AM6442-5FT10 500V to 230V 2000VA Control Transformer PDF	SITAS 4AM6442-5FT10: 2000VA control transformer stepping 500V down to 230V at 8.70A. The highest-power 500V-primary SITAS transformer, with the 4AM6442 platform delivering 96 percent efficiency and 9,700VA S6 surge. Suits marine, offshore, and specialized industrial installations with 500V distribution.	View Product
4AM3242-8DN00-0EA0 Siemens 4AM3242-8DN00-0EA0 Multi-Tap SITAS Adapts 480-525V Ma PDF	The Siemens SITAS 4AM3242-8DN00-0EA0 is a 63VA multi-tap control transformer with a three-position primary covering 480V, 500V, and 525V inputs, delivering a safety-isolated 24V secondary at 2.63A. The multi-tap primary allows a single part number to cover three different distribution voltages — 480V North American, 500V European heavy industry, and 525V marine — simplifying spares holding for OEMs and maintenance organizations supporting mixed-voltage fleets.	View Product
4AM4042-4TV00-0EA0 Siemens 4AM4042-4TV00 230V to 42V 250VA Single-Phase Safety I PDF	SITAS 4AM4042-4TV00: 250VA safety isolating transformer delivering 42V at 5.95A from a 230V supply. The 42V SELV output is the standard for handheld industrial tools and portable lighting. 850VA S6 short-time rating, 89% efficiency, and IP00 open-frame construction for standard panel integration.	View Product
4AM4342-8ED40-0FA0 Siemens 4AM4342-8ED40 575/550/525V to 230V 315VA Single-Phase PDF	SITAS 4AM4342-8ED40: 315VA control transformer spanning 575/550/525V primary taps to a 230V secondary at 1.37A. The high-range multi-tap primary suits installations where mains voltage reaches up to 575V. EI 105/60 core with 90% efficiency and 1,120VA S6 short-time rating for industrial contactor loads.	View Product
4AM3242-5FT10-0FA0 Siemens 4AM3242-5FT10-0FA0 Derives 230V Control Power from a PDF	The Siemens SITAS 4AM3242-5FT10-0FA0 is a 63VA control transformer with a 500V ±5% tapped primary (475/500/525V) and a 230V secondary at 0.27A. It serves industrial panels fed from 500V three-phase supplies — common in mining, heavy manufacturing, and certain European grid areas — providing safety-isolated control voltage per EN 61558-2-6 with 190VA short-time surge for contactor and relay loads.	View Product
4AM4342-4TN00-0EA0 Siemens 4AM4342-4TN00 230V to 24V 315VA Single-Phase Safety I PDF	SITAS 4AM4342-4TN00: 315VA safety isolating transformer delivering 24V at 13.1A from a 230V supply. The high 13.1A secondary current supports extensive control circuits with multiple PLC, relay, and HMI loads. 1,120VA short-time rating, 90% efficiency, and EI 105/60 core in a compact 107x111x120mm IP00 package.	View Product
4AM4042-8ED40-0FA0 Siemens 4AM4042-8ED40 SITAS Multi-Tap Control Transformer, 25 PDF	Siemens SITAS 4AM4042-8ED40 multi-tap control transformer rated 250 VA (850 VA S6) with an extended 12-tap primary reaching 600 V AC — covering higher mains voltages found in Canadian, South American, and certain European industrial grids. The 2×115 V dual secondary configures for 230 V series or 115 V parallel output. Same compact 98 × 106 × 118 mm IP00 footprint as the 4AM4042 series, with 89% efficiency and UL/CSA recognition.	View Product
4AM6442-4TT10-0FA0 Siemens 4AM6442-4TT10 230V 1:1 2000VA Single-Phase Isolation PDF	SITAS 4AM6442-4TT10: 2000VA 1:1 isolation transformer providing full galvanic separation between 230V mains and 230V load at 8.70A. Suppresses common-mode noise, transients, and ground loops for sensitive control electronics. The 4AM6442 platform — the highest power SITAS control transformer — delivers 96 percent efficiency and 9,700VA S6 surge capacity.	View Product
4AM6542-5AD40-0FA0 Siemens 4AM6542-5AD40 SITAS Control Transformer, 2500VA 400V± PDF	Siemens SITAS 4AM6542-5AD40 single-phase control transformer rated 2,500 VA continuous with an extraordinary 13,300 VA short-time peak — the second-largest SITAS control transformer. Converts 400 V AC (±5% taps at 380/400/420 V) to 2×115 V dual secondary at 10.9 A per winding. EI 192/110 core, IP00, 194 × 180 × 178 mm, approximately 29–34 kg. Class-leading 96% efficiency at 50/60 Hz. UL/CSA recognized for the largest industrial control panels.	View Product
4AM3242-8JN00-0EA0 Siemens 4AM3242-8JN00-0EA0 Multi-Tap SITAS — 24V Control Po PDF	The Siemens SITAS 4AM3242-8JN00-0EA0 is a 63VA multi-tap control transformer with a three-position primary covering 400V, 385V, and 245V, delivering a safety-isolated 24V secondary at 2.63A. Its defining practical advantage: one transformer works whether the panel receives a 230V single-phase feeder or a 400V three-phase supply — the installer simply connects to the appropriate primary tap. This eliminates dual-SKU inventory for OEMs building machines deployed across facilities with different a	View Product
4AP2142-8BC40-0HA0 Siemens SITAS 4AP2142 1000VA 3-Phase Control Transformer, 400 PDF	SITAS 3-phase control transformer rated at 1000 VA (1 kVA) with 400 V primary and 289/230 V secondary output. 92% efficiency and low inrush current design enable fuseless protection with SIRIUS 3RV circuit breakers, reducing component count in control panels. IP00 construction for enclosed cabinet mounting in industrial automation.	View Product
4AM5742-4TT10-0FA0 Siemens 4AM5742-4TT10 230V to 230V 1000VA Single-Phase Isolat PDF	SITAS 4AM5742-4TT10: 1,000VA 1:1 isolation transformer maintaining 230V on both sides with full galvanic separation. The EI 150/90 core handles 5,000VA surge loads at 93 percent efficiency. For protecting large PLC systems, drives, and sensitive instrumentation from mains-borne noise and ground loops.	View Product
4AM4042-4TT10-0FA0 Siemens 4AM4042-4TT10 230V to 230V 250VA Single-Phase Isolati PDF	SITAS 4AM4042-4TT10: 250VA 1:1 isolation transformer providing galvanic separation between a 230V supply and 230V load. Essential for suppressing line-conducted noise, breaking ground loops, and protecting sensitive equipment. 850VA S6 short-time capacity with 89% efficiency in a compact IP00 form factor.	View Product
4AM5542-5AD40-0FA0 Siemens 4AM5542-5AD40 SITAS Control Transformer, 800VA 400V± PDF	Siemens SITAS 4AM5542-5AD40 single-phase control transformer rated 800 VA continuous with an exceptional 3,400 VA short-time peak. Converts 400 V AC mains (±5% taps at 380/400/420 V) to dual 2×115 V secondary — configurable for 230 V (series) or 115 V (parallel) control circuits up to 3.48 A per winding. EI 150/65 core, IP00, 152 × 144 × 126 mm, approximately 12–13 kg, 93% efficient at 50/60 Hz. UL/CSA recognized.	View Product
4AM3842-8JD40-0FA1 Siemens 4AM3842-8JD40-0FA1 400/385/245V to Dual 115V 160VA Co PDF	A 160VA control transformer with a three-tap primary accepting 400V, 385V, or 245V AC, feeding dual 115V secondary windings configurable as 230V series or 115V parallel output at 2×0.7A per winding. The 4AM3842-8JD40-0FA1 is the 160VA multi-tap variant offering higher continuous power than the 100VA 4AM3442-8JD40, with 490VA S6 short-time capacity for demanding control circuit applications.	View Product
4AM6542-5MT10-0FA0 Siemens 4AM6542-5MT10-0FA0 Single-Phase Control Transformer, PDF	Siemens SITAS single-phase control transformer built for 690 V industrial distribution systems — common in heavy process industries and large motor control centers. Steps down to 230 V at 2.5 kVA with a three-tap primary (725/690/655 V) and 13.3 kVA S6 surge capacity for high-inrush control loads.	View Product
4AM2642-5AV00-0EA0 4AM2642-5AV00-0EA0 40VA Transformer 400V/42V, Siemens PDF	Siemens 4AM2642-5AV00-0EA0 is a 40 VA single-phase isolation transformer from the SITAS series, converting 400 V AC to 42 V AC at 0.95 A. 76% efficiency, EN 61558-2-4 compliant, UL/CSA recognized, Class B insulation. Screw mount, EI 66/22 core, 68×75×80 mm, 0.94 kg.	View Product
4AT3032-8ED40-0FA0 Siemens SITAS 4AT3032 4000VA Single-Phase Control Transformer PDF	SITAS single-phase control transformer rated at 4000 VA (4 kVA) with multi-tap primary spanning 400 V to 575 V and 230 V secondary output. Dual 2 × 115 V secondary windings allow series (230 V, 17.4 A) or parallel (115 V, 34.8 A) configuration. 95% efficiency with H-class insulation for reliable operation in higher-temperature industrial control panels. IP00 construction for enclosed cabinet mounting.	View Product
4AM3442-8ED40-0FA0 Siemens 4AM3442-8ED40 Multi-Tap 100VA Control Transformer wit PDF	The SITAS 4AM3442-8ED40 is a 100VA multi-tap safety isolating transformer with 12 discrete primary taps from 230V to 600V and dual 115V secondaries configurable for series 230V or parallel 115V operation. The higher tap range — reaching 575V and 600V — covers Canadian industrial and North American 600V-class installations, while still spanning standard European and Asian voltages. The 310VA S6 rating handles inrush reliably. EN 61558 and UL/CSA certified.	View Product
4AM3442-8EN00-0EA0 Siemens 4AM3442-8EN00 Multi-Tap 100VA Control Transformer wit PDF	The SITAS 4AM3442-8EN00 is a 100VA multi-tap safety isolating transformer with 12 primary taps spanning 230V to 600V and a fixed 24V secondary delivering 4.17A. The 600V-capable primary makes it the right choice for Canadian and North American 600V-class panel installations, while the 24V fixed output keeps the control circuit side simple and standardized regardless of local supply voltage.	View Product
4AT3612-5AT10-0FA0 Siemens SITAS 4AT3612 5000VA Single-Phase Control Transformer PDF	SITAS single-phase control transformer rated at 5000 VA (5 kVA) with 400 V primary and 230 V secondary output. Primary voltage taps at 380/400/420 V accommodate supply voltage variations. 18.5 kVA short-term capacity with H-class insulation for demanding industrial control circuits. Bolt-type terminals and IP00 construction for enclosed panel mounting.	View Product
4AM4042-8DD40-0FA0 Siemens 4AM4042-8DD40 SITAS Multi-Tap Control Transformer, 25 PDF	Siemens SITAS 4AM4042-8DD40 multi-tap control transformer rated 250 VA continuous (850 VA S6). Eleven selectable primary taps from 550 V down to 208 V cover virtually all global industrial mains voltages in one part number. The 2×115 V dual secondary can be series-wired for 230 V or parallel-wired for 115 V at double current. IP00, 89% efficient, screw/tab terminals, 98 × 106 × 118 mm.	View Product
4AT3032-5AT10-0FA0 Siemens SITAS 4AT3032 4000VA Single-Phase Control Transformer PDF	SITAS single-phase control transformer rated at 4000 VA (4 kVA) with 400 V primary and 230 V secondary output. Primary voltage taps at 380/400/420 V accommodate supply variations without replacing the unit. 95% efficiency with H-class insulation for reliable operation in higher-temperature industrial control panels. IP00 construction for enclosed cabinet mounting.	View Product
4AM4642-5AT10-0FB1 Siemens SITAS 4AM4642 400VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 400 VA (0.4 kVA) with 400 V primary and 230 V secondary output. DIN rail mountable for snap-on panel installation without tools or drilling. Cage-clamp terminals for fast wiring. 1.74 A secondary current with 1440 VA short-term capacity. B-class insulation. Compact IP00 construction integrates seamlessly into DIN rail control panels.	View Product
4AM3242-5AN00-0EA0 Siemens 4AM3242-5AN00-0EA0 SITAS Control Transformer Steps 40 PDF	The Siemens SITAS 4AM3242-5AN00-0EA0 is a 63VA single-phase control transformer with a 400V ±5% tapped primary (380/400/420V) and a 24V secondary delivering 2.63A. Safety isolating per EN 61558-2-6 and UL/CSA recognized, it supplies control circuits, contactors, and PLCs from the mains supply inside industrial control panels — a compact 86mm-wide unit with 190VA short-time surge capacity for high-inrush loads.	View Product
4AM4842-5AT10-0FA1 Siemens SITAS 4AM4842 500VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 500 VA with 400 V primary and 230 V secondary output. Cage-clamp terminals for fast tool-free wiring. 2.17 A secondary current with 2000 VA short-term capacity. Primary taps at 380/400/420 V accommodate supply variations. B-class insulation. Compact EI 120/72 core, IP00 construction for enclosed panel mounting in industrial automation.	View Product
4AM4842-5MT10-0FA0 Siemens SITAS 4AM4842 500VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 500 VA with 690 V primary and 230 V secondary output. Designed for heavy industry and mining where 690 V mains is standard. Primary taps at 655/690/725 V accommodate supply variations. 2.17 A secondary current with 2000 VA short-term capacity. B-class insulation. Compact EI 120/72 core, IP00 construction.	View Product
4AM3242-8JD40-0FA0 Siemens 4AM3242-8JD40-0FA0 Multi-Tap SITAS Adapts 245-400V In PDF	The Siemens SITAS 4AM3242-8JD40-0FA0 is a 63VA multi-tap control transformer with a three-position primary covering 400V, 385V, and 245V, delivering a safety-isolated 230V secondary at 0.27A. The unusually wide primary range — spanning 245V to 400V — addresses installations where the control panel may be connected to either a 230V single-phase supply or a 400V three-phase feeder, giving the installer a single transformer for both scenarios.	View Product
4AM4642-8ED40-0FA0 Siemens SITAS 4AM4642 400VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 400 VA with 12-tap primary spanning 230 V to 600 V, including 575/550/525 V inputs, and dual 2 × 115 V secondary (series: 230 V / parallel: 115 V). 1.74-3.5 A secondary current with 1440 VA short-term capacity. Compact EI 120/52 core, B-class insulation, IP00 construction for enclosed panel mounting.	View Product
4AM3842-4TV00-0EA0 Siemens 4AM3842-4TV00 230V to 42V 160VA SELV Safety Isolating PDF	A 160VA safety isolating transformer stepping 230V AC down to 42V AC SELV for handheld electric tools, portable work lights, and machine illumination circuits. The 42V secondary meets EN 61558-2-6 safety isolation standards, delivering 3.81A while eliminating electric shock risk for operator-accessible equipment. Its 490VA S6 rating handles tool motor startup surges reliably.	View Product
4AM5742-5CT10-0FA0 Siemens 4AM5742-5CT10 440V to 230V 1000VA Single-Phase Contro PDF	SITAS 4AM5742-5CT10: 1,000VA control transformer stepping 440V down to 230V at 4.35A. Three primary taps (418/440/462V) adapt to 440V distribution networks. The EI 150/90 core delivers 93 percent efficiency and 5,000VA S6 surge capacity. For UK and marine 440V industrial installations.	View Product
4AM4642-4TN00-0EB0 Siemens 4AM4642-4TN00 230V to 24V 400VA DIN Rail Control Tran PDF	SITAS 4AM4642-4TN00-0EB0: 400VA control transformer stepping 230V down to 24V at 16.7A with cage-clamp terminals and DIN rail mounting. Electrically identical to the 0EA0 screw-mount variant but designed for faster panel installation. EI 120/52 core, 91 percent efficiency, 1,440VA S6 short-time rating.	View Product
4AM6142-5FT10-0FA0 Siemens 4AM6142-5FT10 500V to 230V 1600VA Control Transformer PDF	SITAS 4AM6142-5FT10: 1600VA control transformer stepping 500V down to 230V at 6.96A for industrial control circuits. The 4AM6142 platform delivers 96 percent efficiency and 7,300VA S6 surge capacity. Suits marine, offshore, and specialized industrial installations with 500V distribution networks.	View Product
4AM6442-5CJ10-0FA0 Siemens 4AM6442-5CJ10 440V to 110V 2000VA Control Transformer PDF	SITAS 4AM6442-5CJ10: 2000VA control transformer stepping 440V down to 110V at 18.18A for industrial control circuits. Suits marine and offshore 440V distribution where 110V control is standard. The 4AM6442 platform delivers 96 percent efficiency and 9,700VA S6 surge for the largest 110V control panels.	View Product
4AM6542-5FT10-0FA0 Siemens 4AM6542-5FT10-0FA0 Single-Phase Control Transformer, PDF	Siemens SITAS single-phase control transformer for 500 V class distribution systems, stepping down to 230 V at 2.5 kVA. The three-tap primary (525/500/475 V) accommodates regional 500 V grid variations, while the 13.3 kVA S6 short-time rating handles high-inrush contactor and relay loads without voltage sag.	View Product
4AM5242-8DD40-0FA0 Siemens SITAS 4AM5242 630VA Single-Phase Control Transformer, PDF	SITAS single-phase control transformer rated at 630 VA with 11-tap primary spanning 208 V to 550 V, including 525/500/480 V inputs, and dual 2 × 115 V secondary (series: 230 V / parallel: 115 V). 2.74-5.48 A secondary current with 2350 VA short-term capacity. Compact EI 150/48 core, B-class insulation, IP00 construction for enclosed panel mounting.	View Product
4AM3842-4TJ10-0FA0 Siemens 4AM3842-4TJ10 230V to 110V 160VA Single-Phase Control PDF	A 160VA control transformer converting 230V to 110V with ±5% tap adjustment, meeting UK site reduced low voltage safety standards. Its 490VA S6 short-time rating handles contactor inrush and control circuit startup surges without voltage collapse. Suited for construction site temporary power and railway signaling control panels.	View Product