New low-cost and space-saving thermal circuit breakers

7th March 2013
Source: E-T-A
Posted By : ES Admin
New low-cost and space-saving thermal circuit breakers
E-T-A Circuit Breakers has introduced a new, low-cost family of miniaturised thermal circuit breakers. Unlike standard fuses, the E-T-A 1657, 1658 and 1659 single-pole circuit breakers are easily and quickly reset after tripping due to overcurrent. Between them they offer a choice of current rating and tripping characteristics, blade or screw terminals, thread-neck or snap-in mounting, and button or auto reset. Watersplash protection for the actuator button is offered as an accessory.
Suited for the protection of motors, transformers and cables in a very wide range of industrial and consumer applications, all circuit breakers in the family feature a trip-free, snap-action mechanism ensuring reliable and automatic disconnection in the event of an overcurrent, even with a blocked actuator button. Each model has different dimensions and different characteristics. Between them they offer a full range of current and voltage ratings for the protection of AC and DC loads.

The new E-T-A 1657 is a single-pole, thread-neck mounting R-Type TO CBE with EN 60934 and other international approvals. The type 1657 can be specified for applications in a choice of current ratings from 5A to 20A for use on 250V AC or 32V DC, with blade or screw terminals. Featuring a manual reset button, the body measures just 29.1mm x 22.5mm and 14.4mm in width. Typical protection applications include industrial equipment, power tools, battery chargers, UPS, motors, medical equipment and power generators.

The E-T-A 1658 is a single-pole R-Type TO CBE with EN 60934 and other international approvals. The type 1658 can be specified with a thread-neck and push-button actuation or a flush head with auto-reset functionality. It is available in a choice of current ratings from 5A to 30A for use on 240V AC or 28V DC with blade terminals. The body measures 32.0mm x 27.0mm and 14.0mm in width. Typical protection applications include power supplies, battery chargers, motors and consumer products.

The new E-T-A 1659 is a single-pole, thread-neck mounting R-Type TO CBE with EN 60934 and other international approvals. The type 1659 can be specified for applications in a choice of current ratings from 5A to 30A for use on 250V AC or 32V DC, with blade or screw terminals. Featuring a manual reset button, the body measures 31.0mm x 35.0mm and 14.4mm in width. Typical protection applications include industrial equipment, power tools, battery chargers, UPS, motors, medical equipment and power generators.

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