Siemens 4AM6442-5FT10 500V to 230V 2000VA Control Transformer

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Product Specifications

Brand: Siemens
Part Number: 4AM6442-5FT10-0FA0
Product Type: Control Transformer
Series: SITAS 4AM6442
Rated Power: 2,000 VA
Primary Voltage: 500 V (taps: 475/500/525 V)
Secondary Voltage: 230 V
Secondary Current: 8.70 A
Short-Time Power (S6): 9,700 VA
Frequency: 50/60 Hz
Mounting: Screw Mount

Product Description

The SITAS 4AM6442-5FT10-0FA0 is the highest-power 500V-primary transformer in the SITAS line at 2,000VA, stepping 500V down to 230V at 8.70A. Designed for 500V distribution systems in marine, offshore, and specialized heavy-industrial plants where maximum control power is required.

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 475/500/525V (±5 percent). Full galvanic isolation via II0 vector group.

Mechanical Design

Substantial 158x176x164mm IP00 open-frame construction for enclosure installation with screw terminals and screw mounting. Class B (130 C) insulation system, rated for 40 C ambient. Weighs approximately 25 kg.

Application

Common in large marine electrical systems (500V ship service), offshore platforms, and specialized industrial plants with 500V distribution. The 230V secondary powers extensive control, monitoring, and automation subsystems at the highest available SITAS power rating.

Decision Parameters

Parameter	Value
Rated Power	2,000 VA
Primary Voltage	500 V (taps: 475/500/525 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
Mounting	Screw Mount