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B10C4025A IMO MCB 10kA, C Curve 4 Pole, 25A
£28.47
Why Choose the IMO B10C4025A Miniature Circuit Breaker?
The IMO B10C4025A is a high-performance four-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection for three-phase electrical systems. As part of the proven IMO B10 Series, it combines a 25 A rated current, C curve tripping characteristic and a 10 kA breaking capacity, making it ideal for industrial control panels, commercial distribution boards and OEM machinery.
The C curve operating characteristic is specifically intended for circuits supplying equipment with moderate inrush currents, including electric motors, transformers, HVAC equipment, compressors, pumps and automation systems. The thermal-magnetic trip mechanism delivers dependable protection against prolonged overloads while providing rapid disconnection during short-circuit faults.
Designed for installation on a standard 35 mm DIN rail, the B10C4025A features a compact four-module construction with mechanically linked poles for simultaneous switching and isolation. Its robust design ensures dependable long-term operation in demanding industrial and commercial electrical environments.
Key Advantages
- Four-pole protection for three-phase electrical installations.
- 25 A rated current for industrial and commercial applications.
- C curve tripping characteristic for moderate inrush current loads.
- 10 kA short-circuit breaking capacity.
- Thermal-magnetic overload and short-circuit protection.
- Compact DIN rail mounted design for efficient panel layouts.
Key Features
- IMO B10 Series miniature circuit breaker.
- Four-pole configuration.
- 25 A rated current.
- C curve tripping characteristic.
- 10 kA breaking capacity.
- Thermal-magnetic operating mechanism.
- Mechanically linked poles for simultaneous switching.
- Contact position indication window.
- Finger-safe IP20 terminals.
- Compatible with pin and fork type busbars.
- Suitable for standard 35 mm DIN rail mounting.
Reliable Protection for Three-Phase Electrical Systems
The IMO B10C4025A combines thermal overload protection with instantaneous magnetic fault protection to safeguard electrical installations against damaging overcurrent and short-circuit conditions. The thermal element responds to sustained overloads, while the magnetic mechanism rapidly disconnects severe fault currents before damage can occur.
Its C curve operating characteristic makes it particularly suitable for inductive loads that generate temporary starting currents. This allows reliable operation of motors, transformers and industrial machinery while helping minimise nuisance tripping during normal equipment start-up.
The mechanically linked four-pole construction disconnects all conductors simultaneously during manual operation or automatic fault conditions, providing safe isolation and dependable protection for three-phase distribution and control systems.
Typical Applications
- Industrial control panels.
- Three-phase distribution boards.
- Motor starter circuits.
- HVAC equipment.
- Pump and compressor systems.
- Automation and process control equipment.
- Commercial electrical installations.
- OEM machinery and manufacturing systems.
Technical Specifications
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| Current | 25 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10 Miniature Circuit Breakers | |
| Model | B10C4025A | |
| Product type | Miniature circuit breaker | |
| Rated current | 25 A | |
| Number of poles | 4 | |
| Trip characteristic | C Curve | |
| Instantaneous tripping range | 5 to 10 × rated current | |
| Rated voltage | 240/415 V AC | |
| Maximum DC voltage | 60 V DC | |
| Frequency | 50/60 Hz | |
| Breaking capacity | 10 kA | |
| Rated impulse withstand voltage | 6.2 kV | |
| Energy limiting class | Class 3 | |
| Protection mechanism | Thermal-magnetic | |
| Standard | IEC 60898-1 | |
| Protection degree | IP20 | |
| Terminal capacity | Up to 35 mm² solid or 25 mm² stranded conductor | |
| Operating temperature | -30°C to +60°C | |
| Mounting type | 35 mm DIN rail (EN 60715) | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the IMO B10C4025A used for?
The IMO B10C4025A protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM installations.
What current rating does the B10C4025A have?
The breaker has a 25 A rated current.
What does the C curve characteristic mean?
A C curve miniature circuit breaker is intended for circuits with moderate inrush currents, making it suitable for motors, transformers, pumps and other inductive electrical loads.
How many poles does this circuit breaker have?
The B10C4025A has a four-pole configuration, allowing simultaneous protection and isolation of all conductors in a three-phase system.
What is the breaking capacity?
The breaker provides a 10 kA short-circuit breaking capacity for dependable fault protection.
How is the breaker installed?
The B10C4025A is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards and industrial control panels.
Trusted by Electrical Professionals
IMO B10 miniature circuit breakers are trusted by electrical contractors, panel builders and automation engineers for dependable circuit protection, robust construction and reliable performance across industrial and commercial electrical installations.
