E-T-A new low-cost and space-saving thermal circuit breakers

E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electro- mechanical and electronic products for circuit protection, 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.

Ideally 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.

E-T-A designs and manufactures a broad range of electro-mechanical and electronic products for circuit protection, control and instrumentation, including the world’s largest range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and installed by a wide variety of industrial OEMs and end-users, with key markets including air, sea and land transport, process control, computers and communications, medical equipment, domestic appliances, machine tools and robotics.

E-T-A is an international company with headquarters in Altdorf, Germany and production facilities in several other countries, together with marketing, sales and technical operations throughout the industrial world. Its European, North American and Far Eastern markets are served by some 1,300 employees.