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SW181

SP - DT

The SW181 has been designed for direct current loads, including motors as used on electric vehicles such as industrial trucks.  Developed for both interrupted and uninterrupted loads, the SW181 is suitable for switching Resistive, Capacitive and Inductive loads.

The SW181 features single pole double throw, double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity.  The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M4 tapped holes or mounting brackets – either supplied fitted, or as separate items.  Mounting 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.

Please note Normally Closed contacts are not suited to make and break load.

 

SW181 Technical Information

Application
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating 150A 150A
Intermittent Current Rating:
30% Duty 275A 275A
40% Duty 235A 235A
50% Duty 210A 210A
60% Duty 195A 195A
70% Duty 180A 180A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts 1000A at 96V D.C.
No Blowouts 1000A 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 0V
No Blowouts 48V 0V
Typical Voltage Drop per pole across New Contacts at 150A 40mV

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

SW181 Features

Component Configurations
Auxiliary
STANDARD
STANDARD - GOLD
V3
V3 - GOLD
Coil Suppression
DIODE
DIODE AND RESISTOR
BI-DIRECTIONAL DIODE
Coil Terminations
AMP TAGS
FLYING LEADS
PLUG
VACCUM IMPREGNATION

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  • The SW181 has the following optional components available: