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SW301

NO - SP - ST - 1U

The SW301 is designed for use in telecommunication and power distribution applications where an uninterrupted load is switched.  These contactors are primarily for use with Direct Current loads but can also be used with Alternating Currents.

The SW301 features double breaking main contacts with silver alloy tips which are weld resistant, hard wearing and have excellent conductivity.  Silver plating on the main contacts is standard for the SW301, however optionally it can be excluded from the specification.  The SW301 is a compact contactor which can be busbar mounted vertically or horizontally, if mounted vertically the coil should be at the bottom.

SW301 Technical Information

Application
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating - 300A
Intermittent Current Rating:
30% Duty - 550A
40% Duty - 475A
50% Duty - 425A
60% Duty - 385A
70% Duty - 360A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts -
No Blowouts -
Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*)
Blowouts -
No Blowouts 0A at 60V D.C.
Maximum Recommended Contact Voltages
Blowouts 0V 0V
No Blowouts 0V 60V
Typical Voltage Drop per pole across New Contacts at 100A 50mV

Mechanical Durability > 1,000,000 Cycles
Coil Voltage Available (Us) (Rectifier board required for A.C.) 6 - 240V

SW301 Features

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

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  • The SW301 has the following optional components available: