4AM2342-4TN00-0EA0 25VA Transformer 230V/24V, Siemens

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Product Specifications

Brand: Siemens

Part Number: 4AM2342-4TN00-0EA0

Type: Safety Isolating Transformer

Series: SITAS

Rated Power: 25 VA

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

Secondary Voltage: 24 V AC

Secondary Current: 1.04 A

Product Description

The Siemens 4AM2342-4TN00-0EA0 is a 25 VA single-phase safety isolating transformer from the SITAS series, engineered to reliably step down 230 V AC mains to 24 V AC for control and auxiliary circuits in industrial equipment.

Core Features

Multi-tap primary winding: 218 V / 230 V / 242 V accommodates ±5% supply voltage variations
Safety isolating design per EN 61558-2-6 with II0 vector group and zero shielding windings
UL/CSA recognized (cRUus) for global machine export
Class B thermal insulation (IEC 60085), 40 K temperature rise at 40 °C ambient

Technical Specifications

Parameter	Value
Rated Power	25 VA
Primary Voltage	230 V AC ±5% (218/230/242 V taps)
Secondary Voltage	24 V AC
Secondary Current	1.04 A
Efficiency	74%
Short-Circuit Voltage	17.6%
Core Type	EI 60/20
Protection Class	IP00
Dimensions (W×H×D)	62 × 79 × 78 mm
Weight	0.92 kg
Certifications	CE, UKCA, cRUus, EAC

Mounting and Connection

Designed for screw mounting inside control cabinets. Screw-type and flat tab terminals provide flexible wiring options for both primary and secondary connections. The IP00 rating requires installation within an enclosure providing adequate ingress protection.