Looking for dependable circuit protection with a sleek, compact design? Meet the ABB SB203M-C32, a 3-pole Miniature Circuit Breaker (MCB) from ABB’s trusted System pro M compact SB200M series. Built for precision, this MCB offers superior protection against both overload and short circuits with its dual tripping mechanism. Whether you’re safeguarding home panels, commercial systems, or industrial setups, this one’s built for serious performance — and peace of mind.
Brand: ABB
Model: SB203M-C32
Series: System pro M compact SB200M
Poles: 3 Pole
Rated Current (In): 32 A
Tripping Curve: C (for standard applications)
Rated Voltage (Ur): 415 V AC
Operational Voltage: Up to 264 V AC / 60 V DC
Short Circuit Capacity: 10 kA
Tripping Mechanism: Thermal (delayed) + Electromechanical (instantaneous)
Impulse Withstand Voltage: 4 kV
Rated Frequency: 50 Hz
Conforms to: IS/IEC 60898-1
Overvoltage Category: III
Net Dimensions: 52.5mm (W) x 85mm (H) x 69mm (D)
Net Weight: 0.35 kg
ABB’s SB203M-C32 MCB delivers reliable circuit protection for three-phase applications. Its C-curve tripping mechanism is ideal for general-purpose loads, offering a perfect balance between sensitivity and tolerance. Thanks to its compact profile, high breaking capacity, and compliance with IS/IEC 60898-1 standards, this MCB is a trusted choice across multiple sectors. It's engineered for durability and offers effortless panel integration.
Electrical contractors & control panel builders
Residential electrical panels
Commercial buildings
Industrial automation systems
OEMs and machinery manufacturers
Educational institutions and labs
HVAC and building management systems
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| Technical Specification | Details |
|---|---|
| Rated Operational Current (Ie) | 32 A |
| Rated Service Short-Circuit Breaking Capacity (Ics) | 7.5 kA |
| Energy Limiting Class | 3 |
| Electrical Endurance | 10000 AC cycle |
| Mechanical Endurance | 20000 cycle |
| Number of Protected Poles | 3 |
| Number of Poles | 3P |
| Tightening Torque | 2 N·m |
| Actuator Type | Toggle |
| Screw Terminal Type | Cage Terminal |
| Actuator Marking | I / O |
| Actuator Material | Insulation Group II, Black, Sealable |
| Recommended Screw Driver | Pozidriv 2 |
| Accessories Available | Yes |
| Remarks | IP40 in enclosure with cover |
| Connecting Capacity | Rigid: 25 mm²; Flexible: 16 mm² |
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