The CBI QF-3(26) Mini-Rail Circuit Breaker – 45A, Curve 1, 6kA, Orange Handle is a premium hydraulic-magnetic miniature circuit breaker (MCB) designed to protect three-phase electrical systems against overloads and short circuits. With a 45A current rating, 3-pole configuration, and 6kA breaking capacity, it provides dependable protection for residential, commercial, and industrial applications.
CBI’s hydraulic-magnetic technology delivers accurate tripping performance that is not affected by ambient temperature. As a result, the breaker provides reliable protection while helping to reduce nuisance tripping in demanding environments.
The Curve 1 (Orange Handle) tripping characteristic offers a long time delay with an instantaneous trip range of 10–20 × In. Therefore, it is ideal for motors, transformers, compressors, pumps, and other equipment with high inrush currents.
Its compact 26mm module width and Mini-Rail/Dual-Mount design allow for quick installation in distribution boards and control panels. In addition, the durable black housing and orange operating handle make identification easy while providing long-lasting performance.
Whether installed in industrial facilities, commercial buildings, or residential distribution boards, the CBI QF-3(26) delivers dependable circuit protection backed by CBI’s trusted engineering and quality.
Key Features
- 45A rated current
- 3-Pole configuration
- 6kA breaking capacity
- Hydraulic-magnetic tripping technology
- Curve 1 (Orange Handle)
- Long time delay (10–20 × In)
- Reliable overload and short-circuit protection
- Temperature-independent operation
- Compact 26mm module width
- Mini-Rail / Dual-Mount installation
- High mechanical and electrical endurance
- Durable black housing with orange operating handle
- Suitable for residential, commercial, and industrial installations
- Premium CBI quality and reliability





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