4AM3242-4TN00-0EA0 63VA Transformer 230V/24V 190VA S6, Siemens

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Product Specifications

Brand: Siemens

Part Number: 4AM3242-4TN00-0EA0

Type: Safety Isolating Transformer

Series: SITAS

Rated Power: 63 VA (S6: 190 VA)

Primary Voltage: 230 V AC (taps: 218/230/242 V)

Secondary Voltage: 24 V AC

Secondary Current: 2.63 A

Product Description

The Siemens 4AM3242-4TN00-0EA0 is a 63 VA SITAS safety isolating transformer supplying 24 V AC at 2.63 A from a 230 V AC mains input, combining safety isolation per EN 61558-2-6 with a 190 VA S6 short-time rating for reliable contactor switching in control panels.

Performance Highlights

63 VA continuous power with 190 VA S6 short-time capability — drives multiple contactors from a compact transformer
230 V primary with three tap options (218/230/242 V) for adapting to actual site voltage
24 V SELV secondary at 2.63 A — safe low voltage for control and auxiliary circuits
85% efficiency with 8.4% short-circuit impedance for stable voltage under load

Technical Specifications

Parameter	Value
Rated Power (Pn)	63 VA
Short-Time Power (S6)	190 VA
Primary Voltage	230 V AC ±5% (218/230/242 V taps)
Secondary Voltage	24 V AC
Secondary Current	2.63 A
Efficiency	85%
Short-Circuit Voltage	8.4%
Core Type	EI 84/28
Thermal Class	B (IEC 60085)
Protection Class	IP00
Dimensions (W×H×D)	86 × 98 × 90 mm
Weight	1.62 kg
Standards	EN 61558-2-2, EN 61558-2-6
Certifications	CE, UKCA, cRUus, EAC

Application

Mounts via screws or DIN rail inside control cabinets. The dual compliance with EN 61558-2-6 (safety isolating) and EN 61558-2-2 (control transformer) makes it suitable for both SELV control circuits and general contactor supply. IP00 construction requires enclosure integration.