Products

DFE< >

Overview

The DFE is Fairford’s internally bypassed, non-optimising Soft Starter which is perfect for panel builders and end users alike. To the user it offers competitive pricing, soft stopping and the removal of high transient currents.

To the panel builder it can easily substitute a Star/Delta starter because it fits into a similar footprint thus simplifying installation.

  • DFE
  • DFE
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Features and Benefits

Internally Bypassed
Reduces cost because the Soft Starter is out of circuit once it has done its job. This reduces cabinet size and the heat produced which again reduces cost.

Can Substitute Star/Delta Starter
Quicker build time, less maintenance cost, reduced down-time and therefore lower cost of ownership.

Competitive with Star/Delta Starters
Longer life, less maintenance, reduced down-time and therefore lower cost of ownership.

Removal of high transient currents
Star/Delta Starters cause ‘shock loading’ to mechanical systems leading to high rates of contactor failure and increased maintenance costs. The DFE Soft Starter with its smooth step-less acceleration virtually eliminates these problems.

Simplified Installation
Rapid Build and Install Time.

No Need to Change Layout Drawings
Saves time and cost.

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Product Options

APSU005-R - 100/230VAC to 24VDCAPSU005-R – 100/230VAC to 24VDC – Power Supply for DFE 02 to DFE 16

APSU006-R - 100/230VAC to 24VDC APSU006-R – 100/230VAC to 24VDC – Power Supply for DFE 22 to DFE 38

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Technical Data

Current
22 – 500 Amp (11 – 280kW @400V)

Operational Voltage
230 – 460 VAC rms (-15% +10%)

Control Supply
24VDC.
DFE 02 – DFE 16 requires Approx 4VA
DFE 22 – DFE 38 requires Approx 12VA, 4A for 250ms

Rated Frequency
50 – 60 Hz +/- 2Hz

Start Time
0.5 to 30

Stop Time
0 to 30 Seconds

Standards
IEC 60947-4-2
CE
UL Listed to DFE32
RoHS

Index Rating
DFE 02 – DFE 26
Standard AC53b: 3-5:355
Class 10B AC53b: 3.5-12:708

DFE 30 – DFE 38
Standard AC53b: 3-5:355
Class 10B AC53b: 3.5-12:1188

Ingress Protection
IP20 (Up to 55kW)
IP00 (75kW to 280kW)

Ambient Temperature
0°C to 40°C.
Above 40°C de-rate linearly by 2% FLC per °C to a maximum of 60°C.

Altitude
1000m
Above 1000m de-rate by 1% FLC per 100m to a maximum of 2000m

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Downloads

  • DFE Basic Guide to 195A

    This is the quick start guide for the DFE range of Soft Starters describing their basic use and operation.

  • DFE Basic Guide to 500A

    This is the quick start guide for the DFE range of Soft Starters decribing their basic use and operation.

  • DFE Brochure

    This is a brochure detailing the sales highlights of the DFE range of Soft Starters.

  • PSU Brochure

    This is a brochure detailing the sales highlights of the 24VDC Power Supply Units.

Fairford has the capability to design and manufacture bespoke motor control solutions for OEMs and Industrial Automation vendors.

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