Albright International

SW225

NO - SP - ST - 1U

The SW225 has been specifically designed to be installed within the confines of a Power Distribution System 1U rack.  This compact busbar mounted contactor follows the recognised design of the SW250 series of contactors and is devised for uninterrupted loads.  They are primarily for use with direct current loads but can be used for Alternating Current loads.

The SW225 features single pole 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 SW225, however optionally it can be excluded from the specification.  Mounting can either be horizontal or vertical, 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.  The SW225 is easy to install, with “L” Shape Mounting bracket kits fitted as a standard option, or alternatively the M4 tapped holes in the switch frame can be used.  To suit the limitations of space of a 1U rack, the coil connections are supplied as flying leads.

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The SW225 has the following optional components available :

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Technical Information

Application Interrupted Uninterrupted
Thermal Current Rating - 225A
Intermittent Current Rating:
30% Duty - 410A
40% Duty - 355A
50% Duty - 320A
60% Duty - 290A
70% Duty - 270A
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 330A at 60V D.C.
Maximum Recommended Contact Voltages
Blowouts - -
No Blowouts 60V 60V
Typical Voltage Drop per pole across New Contacts at 225A 40mV
Mechanical M.T.B.F >1000000 Operations
Coil Voltage Available (Us) (Rectifier board required for A.C.) 6 - 240V

Features

Component Configurations
Auxiliary
Auxilary---Standard
STANDARD
Auxilary---Gold
STANDARD - GOLD
Coil Suppression
Suppression---Diode
DIODE
Suppression---Resistor-and-Diode
DIODE AND RESISTOR
Suppression---Bi-Directional-Diode
BI-DIRECTIONAL DIODE
Coil Terminations
Coil Termination - Flying Leads
FLYING LEADS
Coil Termination - Vaccum Impreg
VACCUM IMPREGNATION

Downloads

Resources
SW225 Catalogue Data Sheet Download
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