Thermal circuit breakers, also called thermal circuit protectors are electric devices that use bimetallic strip electrically connected in series with the circuit. The heat produced by the current during an overload deforms the bimetallic strip causing it to “break” and trips the breaker. Thermal circuit breakers have a significant advantage over fuses because they can be reset after tripping. They can also be used as the main ON/OFF switch for the equipment being protected.
Scroll through the info below for our best Thermal Circuit Breakers choices to make your purchasing job easier.
The 11+Best Thermal Circuit Breakers You Can Buy
1. E-T-A Circuit Protection and Control Circuit Breaker; Therm; Push/Pull
The E-T-A Circuit Protection and Control Circuit Breaker is a single-pole high-performance thermal circuit breaker designed with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation. An indicator band on the push button clearly shows the tripped/off position.
2. FemiaD 690V 24-32A Thermal Motor Protector Circuit Breaker
This motor circuit breaker is mainly used for the overload and short circuit protection of motor in up to 690V, AC 50/60Hz, and 24-32A power circuit. The FemiaD 690V 24-32A Thermal Motor Protector function as a full-voltage starter to start and cut off the motor. DIN rail mount.
3. E-T-A Circuit Protection and Control Circuit Switch/Thermal Circuit Breakers
This an extremely versatile range of rocker switch/thermal circuit breakers offering the choice of single-pole, double-pole with single-pole protection and double-pole with protection on both poles. The E-T-A Circuit Protection and Control are designed for ‘snap-in panel mounting’ with versions available for three different panel cut-out sizes. Illumination is optional and there is a range of colors and markings for the rocker. Under overload conditions, the rocker returns to the OFF position.
4. Blue Sea Systems 285-Series Circuit Breaker
This 285-Series Circuit Breaker is a drop-in replacement for 185-Series Circuit Breakers. It comes with a visible reset lever shows open condition and it cannot be held closed after trip.
5. IZTOSS 15Amp Circuit Breakers with manual reset Waterproof Button
This TUV ROHS approved (Ignition Protected) Circuit breakers comes with a waterproof button black cover for protection from the elements. It has a ‘push-to-reset’ operation with a white manual reset button. These thermal circuit breakers are widely suitable for automotive, industrial, marine, and many other applications.
6. Nippon Audiopipe Cb200ap 200 Amp In-Line Circuit Breaker
The Nippon Audiopipe Cb200ap is an In-Line Circuit thermal circuit breaker with Platinum Plating is a manual reset circuit breaker.
7. Blue Sea Systems Push Button Reset-Only CLB Circuit Breakers
The Blue Sea Systems Push Button Reset-Only CLB is a ‘trip-free’, ignition protected circuit breakers design for installation aboard gasoline powered boats. Its compact design provides ‘push-to-reset’ operation and enables high-density circuit protection configurations. It can also be used for 24-hour circuit protection.
8. Blue Sea Systems 187-Series Circuit Breakers
This Trip Free, IP66 Rated Waterproof 187-Series Thermal Circuit Breakers cannot be held “ON” during fault current condition. Also, this is a 40A DC Surface Mount circuit breaker combines switching and circuit protection into a single device.
9. T Tocas 150 Amp Circuit Breaker with Manual Reset, 12V- 48VDC
This is a surface mount with protective stud insulator circuit breaker house in a thermal plastic UL rated 94V0 housing. It is an ignition protected with a red manual reset button.
10. NTE Electronics R58-20A Series R58 Thermal Circuit Breaker
The NTE Electronics R58-20A Series R58 comes with a 0.250″ (6.35mm) Quick Connect Terminals for easy installation. It is a thermal-push-button-circuit-breakers Push Button to Reset with the visual Trip indicator but cannot be manually tripped.
11. Crimp Supply Bussmann CB185-30 Surface-Mount Circuit Breakers
This 6-42 VDC, 30-amp surface-mount circuit breakers are normally used in auxiliary and accessory circuits for trucks buses RVs and marine applications including battery charging systems that use battery isolators to manage and protect batteries in multi-battery installations. This thermal type circuit breakers can also be used as a master disconnect with ‘slide of the lever’ resets (Type II) It is waterproof.
Therefore, it is very necessary to have circuit breakers to reliably protect electrical installations against damage or fire because of short circuits, ground faults, or overload faults. Every power supply depends upon a reliable infeed of electricity, but while you will find the best Thermal Circuit Breakers here, there may be a few products from some manufacturers/retailers who don’t list their products correctly.
Reading reviews will lead you to more informed choices of everything you want, from small and trivial things to more important decisions that will come to you in the future, so how about reading our 9+ Best Thermal Gloves for The Cold Months.