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SW400

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The SW400 has been designed by Albright for use in telecommunication and power distribution applications where the load is infrequently switched.  These contactors are primarily for use with Direct Current loads, however they can also be used with Alternating Currents.

The SW400 has double breaking main contacts with silver alloy tips which are weld resistant, hard wearing and have excellent conductivity.  This compact contactor can be busbar mounted vertically or horizontally, however if mounted vertically, the coil should be at the bottom.  If the coil is required at the top, we can adjust the contactor to compensate for this. Optional extras for the SW400 include auxiliary switches, brackets, coil finishes and magnetic latching – allows the contactor to remain closed while consuming no coil power.  Additionally, silver plating on the main contacts is specified as standard (option for no silver plating is also available).

SW400 Technical Information

Application
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating - 400A
Intermittent Current Rating:
30% Duty - 730A
40% Duty - 630A
50% Duty - 565A
60% Duty - 515A
70% Duty - 480A
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 600A at 60V D.C.
Maximum Recommended Contact Voltages
Blowouts - -
No Blowouts - 60V
Typical Voltage Drop per pole across New Contacts at 400A 50mV

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

SW400 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
VACCUM IMPREGNATION
Mounting Options
Top Hat Bracket Kit
'L' Shaped Bracket Kit
M5 Tapped Holes

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