Product Overview.
Kampa UCB250S molded case circuit breaker (MCCB) is a 250-frame 3P device for 3-phase AC systems. It offers stable overcurrent & short-circuit protection for industrial and commercial distribution circuits and motors.
Product Features
Adjustable thermal-magnetic trip, high breaking capacity, CE certified. Flame retardant housing, solid construction. Multiple optional accessories available for heavy-duty circuits.
Technical Parameters
| Parameter | Specification |
| Breaking Capacity | 30kA |
| Rated Voltage | 380/440V |
| Trip Unit Technology | Thermal-Magnetic |
| Rated Frequency (Hz) | 50/60 Hz |
| Material | Plastic, Metal, Copper |
| Model Number | UCB 250S |
| Pole | 3 |
Application Scope
Suitable for distribution panels, heavy-duty circuits, pumps and fan motors. Widely used in factories, commercial buildings and other industrial & power distribution projects.
Operating Conditions
Ambient temperature: -5℃ ~ +40℃; Altitude ≤2000m.
Avoid corrosive gas, explosive materials and sustained strong vibration.
Installation & Maintenance
Install vertically inside cabinet and reserve cooling space.
Regularly remove dust and check terminals. Maintenance should be completed by qualified electricians.
Precautions
Avoid long-term overload operation.
Check wiring before energizing.
Inspect contacts after short-circuit trip before closing again.
Model Description
UCB 250S
After-sales Service
12-month warranty under normal operation. Professional fast selection support. Stable stock for bulk orders.
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