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DC88

MOTOR REVERSING

The DC88 motor reversing type of contactor has been designed for direct current loads, particularly motors as used on electric vehicles such as industrial trucks.  The DC88 is a monoblock construction, resulting in a compact design which is compatible with modern electronic control systems.  Developed for both interrupted and uninterrupted loads, the DC88 is suitable for switching Resistive, Capacitive and Inductive loads.

The main contact circuit, designed for motor reversing, has a built in failsafe, so that if both coils are energised simultaneously the contact arrangement is open circuit.  The DC88 has double breaking main contacts with silver alloy contact tips, which are weld resistant, hard wearing and have excellent conductivity.  The DC88 M8 main stud terminals can be configured in a variety of ways in order to suit the application.  Coil connections are by means of 6.3mm spades and mounting is via the supplied bracket and can be horizontal or vertical, when vertical the M8 contact studs should point upwards.  If the requirement is for downwards orientation we can adjust the contactor to compensate for this.

 

DC88 Technical Information

Application
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating 100A 100A
Intermittent Current Rating:
30% Duty 185A 185A
40% Duty 160A 160A
50% Duty 140A 140A
60% Duty 130A 130A
70% Duty 120A 120A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts 600A at 80V D.C.
No Blowouts 800A at 48V D.C.
Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*)
Blowouts -
No Blowouts -
Maximum Recommended Contact Voltages
Blowouts 96V 96V
No Blowouts 48V 48V
Typical Voltage Drop per pole across New Contacts at 100A 50mV

Mechanical Durability > 5,000,000 Cycles
Coil Voltage Available (Us) (Rectifier board required for A.C.) 6 - 240V

DC88 Features

Component Configurations
Auxiliary
STANDARD
STANDARD - GOLD
Coil Suppression
DIODE
DIODE AND RESISTOR
BI-DIRECTIONAL DIODE
Coil Terminations
AMP TAGS
FLYING LEADS
VACCUM IMPREGNATION

DC88 Resources

DC88 Data Sheet

  • Format: .pdf
  • Size: 1,471kb

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  • The DC88 has the following optional components available: