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2CDS382001R0337 ABB S302P-K4 Miniature Circuit Breaker – 2P – K – 4 A
ABB S302P-K4 two-pole 4A K curve miniature circuit breaker with 25 kA breaking capacity for industrial overload and short-circuit protection.
£68.54
Why Choose the ABB S302P-K4 Miniature Circuit Breaker?
The ABB S302P-K4 (SKU: 2CDS382001R0337) is a premium 2-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection for industrial electrical installations. Part of the renowned ABB System pro M Compact S300P series, it is manufactured in accordance with international IEC and UL standards and delivers exceptional protection for demanding industrial applications.
The S302P-K4 combines thermal overload protection with rapid electromagnetic short-circuit tripping, making it particularly suitable for protecting motors, transformers, contactors, solenoids and other inductive loads. Its compact modular design enables quick installation on standard DIN rails inside switchboards, distribution boards and industrial control panels.
Featuring a 4 A rated current, K tripping characteristic, 2-pole configuration and a 25 kA rated short-circuit breaking capacity, the S302P-K4 delivers reliable protection while accommodating the higher inrush currents commonly encountered in industrial machinery.
Key Advantages
- High-performance 2-pole miniature circuit breaker.
- 4 A rated current with K curve tripping characteristic.
- 25 kA short-circuit breaking capacity.
- Designed for inductive loads with higher starting currents.
- Reliable overload and short-circuit protection.
- Compact DIN rail mounting for professional installations.
Key Features
- ABB System pro M Compact S300P series.
- 4 A rated current.
- 2-pole (2P) configuration.
- K tripping characteristic.
- 25 kA rated breaking capacity.
- Thermal and magnetic trip mechanism.
- Suitable for AC and DC industrial installations.
- Compatible with ABB System pro M Compact accessories.
Reliable Protection for Industrial Equipment
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short-circuit conditions occur. The ABB S302P-K4 combines thermal overload protection with rapid magnetic tripping to minimise equipment damage, improve electrical safety and reduce costly downtime.
Its K tripping characteristic is specifically designed for circuits supplying motors, transformers, contactors and other inductive loads that generate elevated inrush currents during normal operation.
Typical Applications
- Motor protection circuits.
- Industrial control panels.
- Transformer protection.
- Automation systems.
- OEM machinery.
- Industrial electrical distribution.
Technical Specifications
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| Breaking Capacity | 25 kA | |
|---|---|---|
| Current | 4 A | |
| Poles | 2-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Manufacturer | ABB | |
| Series | System pro M Compact S300P | |
| Model | S302P-K4 | |
| SKU | 2CDS382001R0337 | |
| EAN | 4016779078658 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 4 A | |
| Tripping characteristic | K Curve | |
| Number of poles | 2 | |
| Rated operational voltage | 415 V AC | |
| Rated DC voltage | 125 V DC | |
| Frequency | 50 / 60 Hz | |
| Rated breaking capacity (Icn) | 25 kA | |
| Ultimate breaking capacity (Icu) | Up to 100 kA (IEC 60947-2) | |
| Rated insulation voltage (Ui) | 500 V | |
| Impulse withstand voltage (Uimp) | 6 kV | |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) | |
| Mounting type | 35 mm DIN rail | |
| Dimensions (H × W × D) | 88 × 35 × 69 mm | |
| Weight | Approx. 240 g | |
| Applicable standards | IEC/EN 60947-2, UL 1077 and CSA 22.2 No. 235 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S302P-K4 used for?
It protects industrial electrical circuits against overloads and short circuits, particularly those supplying motors, transformers and other inductive equipment.
What is the rated current of the S302P-K4?
The ABB S302P-K4 has a 4 A rated current.
What does the K curve tripping characteristic mean?
A K curve miniature circuit breaker tolerates higher temporary inrush currents while providing rapid protection during overload and short-circuit conditions, making it ideal for inductive loads.
What breaking capacity does the S302P-K4 provide?
The breaker provides a rated short-circuit breaking capacity of 25 kA with an ultimate breaking capacity of up to 100 kA under IEC 60947-2 conditions.
How is this circuit breaker installed?
The S302P-K4 is designed for installation on a standard 35 mm DIN rail inside electrical control panels, switchboards and distribution boards.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electrical engineers, machine builders and panel manufacturers worldwide for dependable circuit protection, high interruption performance and long-term operational reliability.
