The YCB9-125 2P C80 is a high-performance miniature circuit breaker (MCB) designed for residential, commercial, and industrial electrical installations. With a rated current of 80A, it provides reliable protection against overload and short-circuit faults in AC 230/400V systems.
This model features a Type C tripping curve, suitable for moderate inductive loads such as motors and transformers. It complies with international standards IEC60947-2 and IEC/EN 60898-1, ensuring safe operation and compatibility across various applications. The breaker includes a contact position indicator, supports DIN rail mounting, and offers a mechanical life of up to 10,000 operations.
TECHNICAL DETAILS:
| Parameter | Value |
| Model | YCB9-125 |
| Type | Miniature Circuit Breaker (MCB) |
| Poles | 2P |
| Rated Current (In) | 80A |
| Tripping Curve | Type C |
| Rated Voltage (Ue) | AC 230/400V |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Frequency | 50/60 Hz |
| Breaking Capacity (Icu/Ics) | 6000A |
| Impulse Withstand Voltage (Uimp) | 600V / 10,000V |
| Dielectric Strength | 2.5kV (1 min) |
| Pollution Degree | Class 3 |
| Thermal Trip Range | 8–12 × In |
| Electrical Life | 1,500 operations |
| Mechanical Life | 10,000 operations |
| Contact Position Indicator | Yes |
| Protection Degree | IP20 |
| Reference Temperature | 30°C |
| Ambient Temperature | –5°C to +40°C |
| Storage Temperature | –25°C to +70°C |
| Terminal Type | Cable / Pin-type busbar |
| Terminal Size | Up to 50 mm² / AWG 18–1/0 |
| Tightening Torque | 3.5 N·m / 31 in-lbs |
| Mounting | DIN rail EN60715 (35mm) |
| Extension | Top and bottom |
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