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Product Specifications

Product Description

The SITAS 4AM5742-8JD40-0FA0 is the screw-terminal variant of the 8JD40 configuration — the most versatile primary tap arrangement in the 4AM5742 series, with six taps spanning 415V down to 215V. Dual 115V secondaries can be series-connected for 230V at 4.35A or parallel-connected for 115V at 8.70A.

Electrical Performance

Rated at 1,000VA continuous with a short-time power rating of 5,000VA (S6 duty). The EI 150/90 laminated core achieves approximately 93 percent efficiency. Six primary taps handle a wide range of international grid voltages — from 215V to 415V — without requiring separate transformer stock. III0 vector group with shielded isolation.

Mechanical Design

Compact 152x144x132mm IP00 open-frame construction for enclosure installation. Screw terminals on a screw-mount chassis — the standard configuration for conventional panel wiring. Class B (130 C) insulation system, rated for 40 C ambient. Weighs approximately 16 kg.

Application

Ideal for international machine builders and panel shops stocking one transformer that covers installations from 215V to 415V. The dual secondary supports both 230V (European/Asian) and 115V (North American) control circuit standards from a single transformer model.

Decision Parameters

Parameter Value
Rated Power 1,000 VA
Primary Voltage 415 / 400 / 385 / 245 / 230 / 215 V (6 taps)
Secondary Voltage 2 x 115 V (series: 230 V / parallel: 115 V)
Secondary Current 4.35 A (230 V) / 8.70 A (115 V)
Short-Time Power (S6) 5,000 VA
Efficiency ~93%
Insulation Class B (130 C)
Protection Class IP00
Dimensions (WxHxD) 152 x 144 x 132 mm
Mounting Screw Mount

Related Products

  1. Siemens 4AM5742-5AV00-0EA0 — 42V at 23.8A for safety extra-low voltage control circuits
  2. Siemens 4AM5742-8JD40-0FA1 — Dual 115V secondaries for 230V series or 115V parallel at 8.70A
  3. Siemens 4AM5742-5LT10-0FA0 — 230V at 4.35A from 660V for mining and heavy-industrial grids
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Siemens 4AM5742-8JD40 Six-Tap 415-215V Primary to 230V 1000VA Control Transformer

4.35A at 230V or 8.70A at 115V from dual secondaries, screw terminals
MPN/Series: 4AM5742-8JD40-0FA0

Product Specifications

Brand
Siemens
Part Number
4AM5742-8JD40-0FA0
Product Type
Control Transformer
Series
SITAS 4AM5742
Rated Power
1,000 VA
Primary Voltage
415/400/385/245/230/215 V (6-tap)
Secondary Voltage
2 x 115 V (series 230 V / parallel 115 V)
Secondary Current
4.35 A (230 V) / 8.70 A (115 V)
Short-Time Power (S6)
5,000 VA
Frequency
50/60 Hz
Mounting
Screw Mount
Siemens 4AM5742-8JD40 Six-Tap 415-215V Primary to 230V 1000VA Control Transformer