Complaint
Thermal-magnetic and thermal-magnetic release are the two primary types of tiny circuit breakers (TMR). Bimetallic strips that heat up as current flows through them are used in thermal magnetic breakers. The strip expands as a result of the heating, triggering a mechanism that opens the circuit.
The TMR tiny breakers, on the other hand, function similarly but employ an electromagnetic coil in place of bimetal strips for tripping. They are designed to trip at currents that are greater than what thermal breakers can handle. They frequently refer to themselves as air-cooled circuit protectors since they frequently use air as their heat source (ACP).
An ACB trips when there is too much current flowing through it or when the temperature exceeds permissible thresholds. Consequently, certain kinds of breakers are employed.
Advantages
Technical Data
Electrical Features | |
| Rated Current In | 80,100,125A |
| Poles | 1P,2P |
| Rated voltage Ue | 1P(100V), 2P(200V), |
| Rated breaking capacity | 10.000A |
| Rated impulse withstands voltage (1.5/50) Uimp | 4,000V |
| Dielectric test voltage at ind. Freq. for 1 min | 2kV |
| Pollution degree | 2 |
| Thermo-magnetic release characteristic | 8~12 |
Mechanical Features | |
| Electrical life | 4,000 Cycles |
| Mechanical life | 10,000 Cycles |
| Contact position indicator | Yes |
| Protection degree | IP20 |
| Reference temperature for setting of thermal elements | 30ºC |
| Ambient temperature (with daily average≤35ºC) | -5ºC~+40ºC |
| Storage temperature | -25ºC~+70ºC |
Installation | |
Terminal connection type | Cable/Pin-type busbar/U-type busbar |
Terminal size top/bottom for cable | 50mm² 18-2AWG |
Terminal size top/bottom for busbar | 50mm² 18-2AWG |
Tightening torque | 3.5Nm 30In-Ibs |
| Mounting | On DIN rail EN60715(35mm) by means of fast clip device |
| Connection | Power supply in both directions |
