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ABB S204M-K40 MCB – 4P – K Curve – 40A – 10/15kA
ABB S204M-K40 miniature circuit breaker, a 40 A four-pole K-characteristic AC circuit protection device for overload and short-circuit protection in applications with elevated starting or inrush currents.
£119.95
Why Choose the ABB S204M-K40 Miniature Circuit Breaker?
The ABB S204M-K40 is a compact and reliable miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in industrial, commercial and control applications. As part of the established ABB System pro M compact S200M series, it combines thermal and electromagnetic protection with a robust DIN-rail-mounted design.
This four-pole circuit breaker features a K tripping characteristic, making it suitable for circuits with higher starting or inrush currents. The S200M range provides dependable overcurrent protection while its modular construction allows straightforward integration into distribution boards and control panels.
With a 40 A rated current, four-pole configuration and AC supply capability, the S204M-K40 is suited to protecting electrical circuits supplying motor, transformer and other inductive equipment where increased starting currents may occur. Its DIN-rail mounting enables convenient installation in modular low-voltage electrical assemblies.
Key Advantages
- Compact miniature circuit breaker designed for electrical circuit protection.
- 40 A rated current suitable for circuits supplying general and inductive loads.
- Four-pole configuration for protection and switching of multi-phase circuits.
- K tripping characteristic suitable for circuits with elevated starting or inrush currents.
- 10 kA rated breaking capacity for specified AC applications.
- 15 kA ultimate short-circuit breaking capacity under specified AC conditions.
- DIN-rail mounting for convenient installation in modular electrical assemblies.
Key Features
- ABB System pro M compact S200M series.
- 40 A rated current.
- Four-pole configuration.
- K tripping characteristic.
- 10 kA rated breaking capacity under specified conditions.
- 15 kA ultimate breaking capacity under specified AC conditions.
- Thermal overload and electromagnetic short-circuit protection.
- DIN-rail mounting for modular distribution equipment.
- Suitable for industrial, commercial, automation and inductive-load applications.
Reliable Circuit Protection for Loads with Elevated Starting Currents
The ABB S204M-K40 protects electrical circuits from sustained overloads and short-circuit faults. Its thermal protection responds to prolonged excessive current, while electromagnetic protection provides rapid interruption during short-circuit conditions.
The K characteristic is designed for circuits where equipment can produce higher starting or inrush currents, making the S204M-K40 suitable for motor, transformer and other inductive applications. Combined with its four-pole construction and modular DIN-rail format, it can be integrated into electrical distribution, automation and control systems.
Typical Applications
- Industrial control panels and electrical cabinets.
- Motor circuits and motor-related distribution.
- Transformer and inductive-load circuits.
- Commercial and building electrical distribution systems.
- Automation and control installations with elevated inrush currents.
- Multi-phase circuits requiring four-pole protection.
Technical Specifications
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| Current | 40 A | |
|---|---|---|
| Poles | 4-pole | |
| Phase | Three Phase | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Product type | Miniature circuit breaker | |
| Product ID | 2CDS274001R0557 | |
| Rated current | 40 A | |
| Number of poles | 4 | |
| Tripping characteristic | K | |
| Rated voltage | 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated breaking capacity (Icn) | 10 kA | |
| Ultimate short-circuit breaking capacity (Icu) | 15 kA at 400 V AC | |
| Rated insulation voltage (Ui) | 440 V | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Standards | IEC/EN 60898-1 and IEC/EN 60947-2 | |
| Mounting type | DIN-rail mounting | |
| Dimensions (W × H × D) | approx. 70 × 85 × 69 mm | |
| Weight | approx. 0.5 kg | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S204M-K40 | |
| Order code | 2CDS274001R0557 | |
| Rated breaking capacity | 10/15 kA | |
| Supply | AC |
Frequently Asked Questions
What is the ABB S204M-K40 used for?
The S204M-K40 is a four-pole miniature circuit breaker used to protect AC electrical circuits against overloads and short circuits, particularly in applications with higher starting or inrush currents.
What is the rated current of the S204M-K40?
The ABB S204M-K40 has a 40 A rated current.
What tripping characteristic does the S204M-K40 have?
The S204M-K40 has a K tripping characteristic, making it suitable for circuits with elevated starting or inrush currents such as motor, transformer and inductive-load circuits.
What is the breaking capacity of the S204M-K40?
The S204M-K40 has a 10 kA rated breaking capacity and a 15 kA ultimate short-circuit breaking capacity under the specified AC conditions.
How is the ABB S204M-K40 installed?
The S204M-K40 is designed for DIN-rail mounting in modular distribution boards, control panels and electrical assemblies.
Trusted for Electrical Circuit Protection
ABB System pro M compact S200M miniature circuit breakers are designed to provide dependable overload and short-circuit protection across industrial, commercial and automation electrical installations.
