Combined switch and breaker runs to 100A
An
E-T-A Circuit Breakers product story
Edited by the Engineeringtalk editorial team
Sep 6, 2002
E-T-A has modified of one of its combined switch/circuit breakers for equipment to offer what is believed to be the only high-performance 100A CBE with an auxiliary contact for status information.
E-T-A is offering a modified version of one of its combined switch/circuit breakers for equipment (CBEs) to offer, what is believed to be, the only high-performance 100A CBE with an auxiliary contact providing status information.
The new E-T-A 452 is a heavy duty, combined push/pull switch and circuit breaker with a thermal-magnetic tripping mechanism for thread-neck, panel mounting in low voltage applications.
The addition of an auxiliary contact to the standard model offers the user a low current, status indicator signal.
The standard E-T-A 452 is used widely to populate flight decks of aircraft, and for other high- performance applications including telecommunications and process control.
The new CBE is available in a range of current protection values from 50 to 100A.
The E-T-A 452 CBEs feature a tease-free, trip-free, snap-action mechanism ideal for applications requiring reliable, rugged performance particularly when subject to vibrations.
As with all E-T-A thermal-magnetic CBEs, an internal solenoid provides rapid cut off in the event of short-pulse high current overloads, and the bimetal thermal cutout, in series with this solenoid, responds to prolonged low value overloads.
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Contact E-T-A Circuit Breakers
Tel +44 1296 420336
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Overcurrent protection is optimised for automation
Electronic active current limitation responds much faster to overload or short circuit conditions than switch-mode power supplies.
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