Molded Case Circuit Breaker 125A-1250A
This thermal fixed type MCCB is designed for industrial circuit protection. It is suitable for use in circuits with rated voltage below 690V and rated working current up to 800A for infrequent transformation and infrequent starting of motors.
Technical Specifications
Overview
Industrial Circuit Protection
This thermal fixed type molded case circuit breaker (MCCB) is engineered for reliable circuit protection in industrial power distribution systems. Designed for AC 50Hz applications, it supports a rated insulation voltage of 800V and handles circuits with rated voltages below 690V. The unit is suitable for infrequent power transformation and motor starting, ensuring robust performance and safety in demanding electrical environments.
Electrical Ratings
- Rated Current Range
- 125A - 1250A
- Rated Insulation Voltage (Ui)
- 800 V
- Rated Impulse Withstand Voltage (Uimp)
- 8 kV
- Rated Frequency
- 50Hz
Performance Metrics
Breaking Capacity Specifications
| Level | Icu (kA) | Ics (kA) |
|---|---|---|
| L | 36 | 27 |
| M | 50 | 36 |
Endurance Cycles
8,500 cycles
Mechanical Endurance
1,500 cycles
Electrical Endurance
Configuration
Trip Mechanism
Fixed Magnetic Trip
- Number of Poles
- 3-Pole4-Pole
Compliance
- Standards Compliance
- IEC 60947-2
