● Standard: IEC60898-1, IEC60947-2
● Type of trip: Thermo-magnetic
● Rated current: 80~125A
● Rated voltage: 230/400V~240/415V
● Number of poles: 1P,2P,3P,4P,1P+N,3P+N
● Rated short-circuit breaking capacity: 6kA,10kA
● Tripping curve: C, D
● Ambient air temperature: -25...+40 ºC
● Connection: From top and bottom
● Certificates: CE, CB, UKCA
The EKM3-125H is a high-current circuit breaker designed to handle demanding electrical environments. With a 125A rating, it is well-suited for high-voltage load applications and provides robust protection and control for high-current loads. This makes it an ideal choice for industrial settings and large-scale construction projects where reliable performance is critical.
| Standard | IEC/EN60898-1 | IEC/EN60947-2 |
| Protection | Overcurrent and short circuit | |
| Type of trip | Thermo-magnetic | |
| Rated Current In | 80,100,125A | |
| Poles | 1P, 1P+N, 2P, 3P,3P+N, 4P | |
| Rated voltage Ue | 240/415V~ | |
| Rated frequency | 50/60Hz | |
| Rated breaking capacity | 6,000A | 10,000A |
| Rated impulse withstand voltage (1.2/50) Uimp | 4,000V | |
| Dielectric test voltage at ind. Freq. for 1 min | 2kV | |
| Thermal release characteristic | (1.13-1.45) x In | (8-12) x In |
| Magnetic release characteristic | C:(5-10) x In, D:(10-20) x In | |
| Electrical life | 4,000 Cycles | |
| Mechanical life | 10,000 Cycles | |
| Contact position indicator | Yes | |
| Protection degree | IP20 | |
| Ambient temperature (with daily average≤35℃) | -5℃~+40℃, Max. 95%humidity | |
| Terminal connection type | Cable/Pin-type busbar | |
| Max. terminal size for cable | 50mm2 | |
| Max. tightening torque | 3.5N.m | |
| Installation | Mounting on 35mm Din rail | |
| Connection | From top and bottom | |


The EKM3-125H is a high-current circuit breaker designed to handle demanding electrical environments. With a 125A rating, it is well-suited for high-voltage load applications and provides robust protection and control for high-current loads. This makes it an ideal choice for industrial settings and large-scale construction projects where reliable performance is critical.