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SW121

DP - DT

The SW121 has been designed for Direct Current loads, typical applications include motors as used on small electric vehicles such as light industrial trucks and powered cars. These contactors are not polarity sensitive thus they can be used for switching Alternating Current loads.

SW121 Technical Information

Application
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating 125A 125A
Intermittent Current Rating:
30% Duty 210A 210A
40% Duty 190A 190A
50% Duty 170A 170A
60% Duty 150A 150A
70% Duty 140A 140A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts -
No Blowouts 1000A at 80V D.C.
Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*)
Blowouts -
No Blowouts -
Maximum Recommended Contact Voltages
Blowouts 0V 0V
No Blowouts 80V 96V
Typical Voltage Drop per pole across New Contacts at 100A 40mV

Mechanical Durability > 3,000,000 Cycles
Coil Voltage Available (Us) (Rectifier board required for A.C.) 6 - 240V

SW121 Features

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

SW121 Resources

SW120 Series Catalogue

  • Format: .pdf
  • Size: 1,403kb

SW121 Spares Sheet

  • Format: .pdf
  • Size: 254kb

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  • The SW121 has the following optional components available: