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2CDS382001R0405 ABB S302P-B40 Miniature Circuit Breaker – 2P – B – 40 A
ABB S302P-B40 2-pole miniature circuit breaker with a 40 A rated current, Type B tripping characteristic and 25 kA short-circuit breaking capacity for industrial and commercial circuit protection.
£53.93
Why Choose the ABB S302P-B40 Miniature Circuit Breaker?
The ABB S302P-B40 (Product ID: 2CDS382001R0405) is a high-performance 2-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in commercial and industrial electrical installations. As part of the proven ABB System pro M compact S300P series, it combines high breaking capacity with compact dimensions and dependable long-term performance.
Featuring a Type B tripping characteristic, the S302P-B40 is ideally suited for protecting resistive and lightly inductive loads where fast response to overloads is required. Its robust thermal and magnetic trip mechanisms help safeguard electrical equipment, wiring and distribution systems from potentially damaging fault conditions.
With a rated current of 40 A, a 2-pole configuration and a 25 kA breaking capacity, the ABB S302P-B40 is an excellent choice for industrial control panels, commercial switchboards and electrical distribution applications requiring high-performance circuit protection.
Key Advantages
- Industrial-grade 2-pole miniature circuit breaker.
- 40 A rated current for higher-load electrical circuits.
- Type B tripping characteristic for rapid protection of standard electrical loads.
- 25 kA short-circuit breaking capacity for demanding installations.
- Compact DIN rail mounting simplifies installation and maintenance.
- Fully compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- 40 A rated current.
- 2-pole protected configuration.
- Type B tripping curve.
- 415 V AC rated operational voltage.
- 125 V DC rated operational voltage.
- 25 kA ultimate breaking capacity.
- DIN rail mounting with screw terminals.
Reliable Protection for Electrical Distribution Systems
The ABB S302P-B40 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping prevent equipment damage, cable overheating and electrical hazards. Its resettable design allows circuits to be safely restored after faults have been resolved.
The Type B tripping characteristic provides fast operation at relatively low fault currents, making this breaker well suited to lighting circuits, distribution boards, resistive loads and other installations where high inrush currents are not expected.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels.
- Lighting circuits.
- Power distribution systems.
- Building services installations.
- OEM machinery and switchboard construction.
Technical Specifications
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| Current | 40 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| Model | S302P-B40 | |
| Product ID | 2CDS382001R0405 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 40 A | |
| Number of poles | 2 | |
| Number of protected poles | 2 | |
| Tripping characteristic | Type B | |
| Rated operational voltage | Up to 415 V AC / 125 V DC | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 6 kV | |
| Breaking capacity to IEC 60947-2 | 25 kA at 400 V AC | |
| Breaking capacity to EN 60898-1 | 20 kA at 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 (IP40 when installed in enclosure) | |
| Overvoltage category | IV | |
| Pollution degree | 3 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm | |
| Weight | approx. 0.25 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S302P-B40 used for?
The ABB S302P-B40 protects electrical circuits against overloads and short circuits in commercial and industrial installations.
What is the rated current of the S302P-B40?
This miniature circuit breaker has a rated current of 40 A.
What does the Type B tripping characteristic mean?
Type B breakers trip quickly at relatively low fault currents, making them ideal for standard electrical circuits with resistive or lightly inductive loads.
What is the breaking capacity of this circuit breaker?
The S302P-B40 offers an ultimate short-circuit breaking capacity of up to 25 kA at 400 V AC.
How is the ABB S302P-B40 installed?
The breaker is designed for installation on a standard DIN rail inside electrical switchboards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are widely trusted by electrical engineers, panel builders and industrial maintenance professionals for delivering dependable circuit protection, excellent reliability and long service life.
