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Phone：+86 15383419322Description
The BBC 10QT01 (now part of ABB) is a high-performance molded case circuit breaker (MCCB) engineered for robust electrical protection in industrial and commercial power distribution systems. Designed to safeguard circuits against overloads, short circuits, and ground faults, this 100A-rated breaker combines advanced thermal-magnetic tripping technology with rugged construction for reliable operation in demanding environments. As part of BBC’s legacy Q-series (integrated into ABB’s Tmax XT portfolio), the BBC 10QT01 features a 25 kA breaking capacity at 415V AC, ensuring critical infrastructure protection in facilities where electrical fault currents can reach extreme magnitudes. Its compact design optimizes panel space while providing clear visible contact indication and padlockable rotary handle for enhanced safety during maintenance. With compliance to global standards and compatibility with ABB accessories, this breaker delivers trusted circuit protection for mission-critical applications from manufacturing plants to renewable energy installations.
10QT01 BBC
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 10QT01 |
| Manufacturer | BBC (Brown, Boveri & Cie, now ABB) |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Rated Operational Current (Iu) | 100 A |
| Rated Operational Voltage (Ue) | 690 V AC / 250 V DC |
| Breaking Capacity (Icu) | 25 kA @ 415V AC |
| Poles | 3P (Three-Pole) |
| Tripping Characteristic | Thermal-Magnetic (Fixed) |
| Trip Unit | TM-D (Thermal Magnetic – Direct) |
| Mechanical Life | 20,000 Operations |
| Electrical Life | 10,000 Operations |
| Terminal Type | Screw Clamp (Up to 35 mm²) |
| Standards Compliance | IEC 60947-2, CE, UL 489 |
| Operating Temperature | -25°C to +70°C |
Main Features and Advantages
Advanced Protection Technology: The BBC 10QT01 utilizes dual-element tripping with precision-calibrated thermal bimetals for overload protection and magnetic coils for instantaneous short-circuit response. Its current-limiting design interrupts faults within 3 ms, minimizing let-through energy and protecting downstream equipment.
Robust Construction: Featuring arc chutes with deionizing plates and stainless steel components, the breaker withstands harsh conditions including humidity, dust, and corrosive atmospheres. The UL-recognized insulated housing prevents accidental contact with live parts.
Operational Safety & Efficiency: Visible contact position indicators eliminate hazardous “live testing.” The rotary handle accepts multiple padlocks for LOTO compliance. Tool-free accessory mounting (e.g., shunt trips) reduces installation time by 50% compared to screw-fixed alternatives.
Application Field
The BBC 10QT01 secures power distribution across industries:
Manufacturing: Main feeder protection for CNC machine clusters and robotic assembly lines
Energy: Incomer breaker for solar inverter subpanels and wind turbine control cabinets
Infrastructure: Motor protection for HVAC chillers and escalator drive systems
Marine: Primary switching for shipboard power distribution panels
Data Centers: Critical branch circuit protection for server racks
10QT01 BBC
Related Products
BBC 10QT02: 250A MCCB for higher-current feeder protection
BBC 10QT00: 63A variant for branch circuit applications
ABB T1N160 PR221DS: Modern ABB equivalent with digital trip unit
BBC 10QT-SD: Shunt trip accessory for remote tripping of 10QT01
BBC 10QT-AUX: Auxiliary contact block for status signaling
BBC 10QT-UVT: Undervoltage release module
ABB OT160E3: Current limiter for downstream coordination
