IMO C4/100R-75 thermal magnetic motor protection circuit breaker with adjustable overload range of 55.0 to 75.0A and 975A magnetic trip for industrial motor protection.
Original price was: £279.41.£185.76Current price is: £185.76.
The IMO C4/100R-75 is a heavy-duty thermal magnetic motor protection circuit breaker (MPCB) designed to provide reliable protection for three-phase electric motors against overloads, short circuits and phase failure. As part of the IMO C4 Motor Protection Circuit Breaker series, it is engineered for demanding industrial machinery, motor starter assemblies, automation systems and OEM control panels.
This motor protection circuit breaker features an adjustable thermal overload setting from 55.0 to 75.0A together with a fixed 975A magnetic short-circuit trip. Its thermal magnetic protection provides accurate overload sensing while delivering rapid fault clearance to protect motors, cables and associated equipment.
Designed for industrial panel mounting, the C4/100R-75 combines overload protection, short-circuit protection and manual motor isolation within one compact device. Its robust construction makes it suitable for larger motors operating in demanding manufacturing and process applications.
Motor protection circuit breakers combine overload protection, short-circuit protection and manual isolation within one compact device. The IMO C4 series simplifies motor control panel design while providing dependable protection for electric motors operating in industrial automation, manufacturing and process control environments.
The C4/100R-75 is ideally suited to protecting motors with a full load current between 55.0A and 75.0A, helping reduce downtime, improve operational safety and maximise equipment reliability.
| Current | 75 A |
|---|---|
| Manufacturer | IMO Precision Controls |
| Series | C4 Motor Protection Circuit Breakers |
| Model | C4/100R-75 |
| Product type | Thermal magnetic motor protection circuit breaker |
| Thermal adjustment range | 55.0 to 75.0A |
| Magnetic trip | 975A |
| Suitable motor power | Up to approximately 37kW at 400V AC |
| Number of poles | 3 |
| Rated operational voltage | Up to 690V AC |
| Rated insulation voltage | 1000V |
| Frequency | 50 / 60Hz |
| Short-circuit breaking capacity | Up to 50kA at 400V AC |
| Protection | Overload, short circuit and phase failure |
| Mounting type | Panel mounting |
| Protection rating | IP20 |
| Standards | IEC/EN 60947-1, IEC/EN 60947-2 and IEC/EN 60947-4-1 |
| HS Code | 8536209090 |
| Country of Manufacture | South Korea |
It protects three-phase electric motors against overloads, short circuits and phase failure while providing manual motor isolation.
The adjustable thermal setting range is 55.0 to 75.0A.
The magnetic short-circuit release is factory set at approximately 975A.
It is suitable for protecting motors up to approximately 37kW at 400V AC, depending on the application.
It is typically installed in industrial motor control centres, machinery control panels and OEM automation systems.
IMO C4 motor protection circuit breakers are trusted by panel builders, OEMs and industrial engineers for dependable motor protection, safe isolation and reliable long-term performance in demanding industrial applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...