Fairford Soft Starters DFE 36 460A

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 panel builders it is an ideal substitute for a Star/Delta starter because it fits into a similar footprint, thus simplifying installation. It is available from 22 Amps to 500 Amps.

Fairford Soft Starters DFE General Specs:

Operational Voltage (Ue) 230-460VAC rms,
3-Phase (-15% +10%)
Rated Frequency 50 – 60Hz +/- 2Hz
Index Rating Light Duty (DFE-02 – DFE-26)
AC53b: 3-5: 355
Core Duty (DFE-02 to DFE-26)
AC53b: 3.5-12: 708
Light Duty (DFE-30 – DFE-38)
AC53b: 3-5: 355
Core Duty DFE-30 – DFE-38)
AC53b: 3.5-12: 1188
Start Time 0.5 to 30 Seconds
Stop Time 0 to 30 Seconds
Control Supply 24V DC Supplied externally to
terminals X1-X2
DFE-34 to DFE-38 need a power
supply capable of 3 amps for
1 second
Power supply available, please
contact Fairford for more details.
Soft Start/Stop Control 24V DC/110V AC galvanically
isolated terminals A1-A2
Auxiliary Circuits (Relays) Run – 13/14, Ready – 23/24.
230VAC 3A, Ac11
Indication Multifunction LED on the front of
the unit
Power Terminals Input 1/L1, 3/L2 and 5/L3
Output 2/T1, 4/T2 and 6/T3
Up to 55kW IP20 rated wire
clamping terminals
75kW to 280kW External Busbars
IP Rating Up to 55kW IP20
75kW to 280kW IP00
Ambient Temperature 0°C to 40°C
Above 40°C de-rate linearly by
2% of unit FLC per °C to a
de-rate of 40% at 60°C
Transport and Storage -25°C to +60°C
Altitude 1000m. Above 1000m de-rate
linearly by 1% of unit FLC per
100m to a maximum altitude
of 2000m
Humidity Max. 85% non-condensing,
not exceeding 50% at 40°C

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