Thermal-Magnetic Overcurrent Circuit Breakers

Typical Applications

Ideally suited to protect against overcurrent and short circuit of equipment in telecommunications, process control and other industrial applications where sophisticated equipment requires a high precision performance.

Technology

A latching type bimetal is combined with a magnetic coil to ensure protection and genuine physical contact isolation. This provides the joint benefits of delayed operation for low level overcurrent protection and fast magnetic action of higher value short circuits, disconnecting the faulty circuit within milliseconds.

201

Thermal-magnetic circuit breaker for rail
mounting, low resistance option

2210-S2

Thermal-magnetic circuit breaker, socket
or panel mounting, single or multipole

2210-T2

Thermal-magnetic circuit breaker
for rail mounting, single or multipole

2215-L

Thermal-magnetic circuit breaker, small width,
pcb or threadneck panel mounting

2215-G

Thermal-magnetic circuit breaker,
small width, threadneck mounting

2216-S

Thermal-magnetic circuit breaker,
small width, with slide actuator, plug-in mounting

3120-F...-...M1...

Thermal-magnetic circuit breaker, snap-in mounting, 1-, 2-pole

3300 fast acting
3400 standard delay

Thermal-magnetic circuit breaker with auxiliary contact option, threadneck mounting

3500

Thermal-magnetic circuit breaker with
manual release facility, flange mounting

3600 standard version
3900 low-resistance version

Thermal-magnetic circuit breaker with auxiliary contacts, socket mounting

4230-T

Single pole and multipole thermal-magnetic miniature circuit breakers (MCBs) in accordance with EN 60947-2, UL 1077 and UL 489

Resources:

Differences and Similarities Between K Curve and D Curve Breakers

A Miniature Circuit Breaker (MCB) is a resettable protective device that prevents electrical circuits from catching fire and causing damage to personnel and property. It is a device designed to isolate a circuit during an overcurrent event without using a fusible element. There are two types of overcurrent events; a thermal overload and a short circuit.

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Improve Plant Production by Addressing 24VDC Switch-Mode Power Supply Issues

For most industries, the accepted norm for unplanned downtime is 5% of operating time, which represents a direct, significant loss of revenue and therefore profit. But have you ever stopped to consider the true cost of downtime?  Read the latest white paper from E-T-A to see how the integration of electronic circuit control technology can reduce the downtime of your 24VDC system designs.

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