Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CDS382001R0557 ABB S302P-K40 Miniature Circuit Breaker – 2P – K – 40 A
ABB S302P-K40 2-pole miniature circuit breaker with a 40 A rated current, Type K tripping characteristic and 25 kA breaking capacity for industrial circuit protection.
£73.80
Why Choose the ABB S302P-K40 Miniature Circuit Breaker?
The ABB S302P-K40 (Product ID: 2CDS382001R0557) is a premium 2-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the proven ABB System pro M compact S300P series, it combines robust construction, high breaking capacity and reliable long-term performance for demanding industrial environments.
Featuring a Type K tripping characteristic, the S302P-K40 is specifically engineered for circuits supplying motors, transformers, compressors, solenoids and other inductive equipment with high inrush currents. Its optimised thermal and magnetic trip mechanisms reduce nuisance tripping while ensuring rapid disconnection during genuine fault conditions.
With a rated current of 40 A, a 2-pole configuration and an impressive 25 kA ultimate short-circuit breaking capacity, the ABB S302P-K40 is ideally suited to industrial control panels, OEM machinery, automation systems and electrical distribution applications requiring dependable circuit protection.
Key Advantages
- Industrial-grade 2-pole miniature circuit breaker.
- 40 A rated current for demanding industrial circuits.
- Type K tripping characteristic for high inrush current applications.
- 25 kA ultimate short-circuit breaking capacity.
- Compact DIN rail mounting for fast installation and maintenance.
- Manufactured in accordance with IEC, EN, UL and CSA standards.
Key Features
- ABB System pro M compact S300P series.
- 40 A rated current.
- 2-pole protected configuration.
- Type K tripping characteristic.
- Rated operational voltage up to 415 V AC / 125 V DC.
- 25 kA ultimate breaking capacity at 400/415 V AC.
- 50 / 60 Hz operation.
- DIN rail mounting with robust screw terminals.
Reliable Protection for Industrial Electrical Systems
The ABB S302P-K40 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping to protect wiring, machinery and connected equipment from costly damage while improving personnel safety and minimising downtime.
Its Type K tripping characteristic is optimised for circuits with elevated starting currents, making it particularly suitable for industrial motors, transformers, compressors, pumps, conveyors and automation equipment where dependable operation is essential.
Typical Applications
- Industrial control panels.
- Motor and transformer protection.
- OEM machinery.
- Industrial automation systems.
- Compressors and pump installations.
- Commercial and industrial distribution boards.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 40 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| Model | S302P-K40 | |
| Product ID | 2CDS382001R0557 | |
| EAN | 4016779078429 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 40 A | |
| Number of poles | 2 | |
| Number of protected poles | 2 | |
| Tripping characteristic | Type K | |
| Rated operational voltage | Up to 415 V AC / 125 V DC | |
| Maximum UL/CSA voltage | 480Y/277 V AC | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 6 kV | |
| Ultimate breaking capacity (Icu) | 25 kA at 400/415 V AC | |
| Rated breaking capacity (Icn) | 20 kA at 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 (IP40 when installed in an enclosure) | |
| Overvoltage category | IV | |
| Pollution degree | 3 | |
| Power loss | 6.8 W | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Conductor size | 0.75–35 mm² (solid), 0.75–25 mm² (stranded) | |
| Dimensions (H × W × D) | 88 × 35 × 69 mm | |
| Weight | Approx. 248 g | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S302P-K40 used for?
The ABB S302P-K40 protects industrial electrical circuits against overloads and short circuits, particularly circuits supplying motors, transformers and other inductive loads.
What is the rated current of this circuit breaker?
The ABB S302P-K40 has a rated current of 40 A.
What does the Type K tripping characteristic mean?
Type K breakers are designed to tolerate higher temporary starting currents while still providing rapid protection against overloads and short circuits, making them ideal for inductive equipment.
What is the breaking capacity of the S302P-K40?
The breaker provides an ultimate short-circuit breaking capacity of up to 25 kA at 400/415 V AC.
How is the ABB S302P-K40 installed?
The S302P-K40 is designed for installation onto a standard DIN rail within industrial control panels, switchboards and electrical distribution systems.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted worldwide by electrical engineers, OEM manufacturers and panel builders for delivering dependable circuit protection, high breaking capacity and long-term operational reliability.
