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Product Specifications

Product Description

The SITAS 4AM6442-8DD40-0FA0 is a 2000VA single-phase control transformer with a three-tap primary spanning 525/500/480V, stepping down to 230V at 8.70A. This is the highest-power transformer available with the 480-525V multi-tap primary configuration — delivering the full 4AM6442 platform performance for the largest control panels in this voltage range.

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. Three primary taps accommodate regional voltage variations. 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

Suits large industrial control panels in facilities with 480-525V distribution — North American manufacturing plants, processing facilities, and heavy-industrial sites — where 230V control power is required at the highest SITAS power rating.

Decision Parameters

Parameter Value
Rated Power 2,000 VA
Primary Voltage 525 / 500 / 480 V (3 taps)
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

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 4AM6442-8DD40 525/500/480V to 230V 2000VA Control Transformer

Three-tap primary to 525V, 8.70A at 230V, 9.7kVA S6 surge
MPN/Series: 4AM6442-8DD40-0FA0

Product Specifications

Brand
Siemens
Part Number
4AM6442-8DD40-0FA0
Product Type
Control Transformer
Series
SITAS 4AM6442
Rated Power
2,000 VA
Primary Voltage
525/500/480 V (3-tap)
Secondary Voltage
230 V
Secondary Current
8.70 A
Short-Time Power (S6)
9,700 VA
Frequency
50/60 Hz
Mounting
Screw Mount
Siemens 4AM6442-8DD40 525/500/480V to 230V 2000VA Control Transformer