4AM2342-5AN00-0EA0 25VA Transformer 400V/24V, Siemens

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Product Specifications

Brand: Siemens
Part Number: 4AM2342-5AN00-0EA0
Type: Safety Isolating Transformer
Series: SITAS
Rated Power: 25 VA
Primary Voltage: 400 V AC (taps: 380/400/420 V)
Secondary Voltage: 24 V AC
Secondary Current: 1.04 A

Product Description

The Siemens 4AM2342-5AN00-0EA0 is a 25 VA SITAS safety isolating transformer with 400 V primary, stepping down three-phase supply line voltage to a safe 24 V AC for control circuit operation in industrial machinery.

Electrical Design

400 V primary winding with three taps at 380 V / 400 V / 420 V for ±5% voltage adjustment
Fixed 24 V AC secondary delivers 1.04 A continuous rated current
74% efficiency at full load with 17.6% relative short-circuit impedance
Safety isolating construction to EN 61558-2-6, II0 vector group

Technical Specifications

Parameter	Value
Rated Power	25 VA
Primary Voltage	400 V AC ±5% (380/400/420 V taps)
Secondary Voltage	24 V AC
Secondary Current	1.04 A
Efficiency	74%
Short-Circuit Voltage	17.6%
Core Type	EI 60/20
Thermal Class	B (IEC 60085)
Protection Class	IP00
Dimensions (W×H×D)	62 × 79 × 78 mm
Weight	0.97 kg
Certifications	CE, UKCA, cRUus, EAC

Installation

Screw-mount design for secure attachment inside control cabinets or machine housings. Primary and secondary connections via screw-type and flat tab terminals. IP00 rating mandates installation within a protected enclosure.