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Product Specifications

Product Description

The SITAS 4AM6442-5AT10-0FA1 is the cage-clamp variant of the flagship 2000VA 400V-to-230V control transformer. Identical in electrical performance to the -0FA0 but with spring-loaded cage-clamp terminals for tool-free, vibration-resistant wiring — ideal for panel builders prioritizing fast assembly and maintenance-free connections.

Electrical Performance

Rated at 2,000VA continuous with a short-time power rating of 9,700VA (S6 duty) — nearly 5x headroom. The EI 174/102 laminated core achieves approximately 96 percent efficiency. Primary taps at 380/400/420V. Full galvanic isolation via II0 vector group.

Mechanical Design

Substantial 158x176x164mm IP00 open-frame construction. Cage-clamp spring-loaded terminals for vibration-resistant, maintenance-free connections and faster panel assembly than conventional screw terminals. Screw-mount chassis. Class B (130 C) insulation, rated for 40 C ambient. Weighs approximately 25 kg.

Application

Same flagship 2000VA European control panel application as the -0FA0, preferred where panel builders want tool-free wiring and vibration-proof connections for the largest multi-contactor and multi-drive automation systems.

Decision Parameters

Parameter Value
Rated Power 2,000 VA
Primary Voltage 400 V (taps: 380/400/420 V)
Secondary Voltage 230 V
Secondary Current 8.70 A
Short-Time Power (S6) 9,700 VA
Efficiency ~96%
Insulation Class B (130 C)
Protection Class IP00
Dimensions (WxHxD) 158 x 176 x 164 mm
Terminal Type Cage-Clamp
Mounting Screw Mount

Related Products

  1. Siemens 4AM6442-5AT10-0FA0 — 8.70A at 230V from 400V, 9,700VA S6 — highest SITAS rating
  2. Siemens 4AM6442-8JD40-0FA0 — Widest coverage at highest SITAS power, dual 115V secondaries
Siemens
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Siemens 4AM6442-5AT10 400V to 230V 2000VA Control Transformer, Cage-Clamp

Cage-clamp variant, 8.70A at 230V, 9,700VA S6 surge
MPN/Series: 4AM6442-5AT10-0FA1

Product Specifications

Brand
Siemens
Part Number
4AM6442-5AT10-0FA1
Product Type
Control Transformer
Series
SITAS 4AM6442
Rated Power
2,000 VA
Primary Voltage
400 V (taps: 380/400/420 V)
Secondary Voltage
230 V
Secondary Current
8.70 A
Short-Time Power (S6)
9,700 VA
Frequency
50/60 Hz
Terminal Type
Cage-Clamp
Mounting
Screw Mount
Siemens 4AM6442-5AT10 400V to 230V 2000VA Control Transformer, Cage-Clamp