IMO C4/100R-90 thermal magnetic motor circuit breaker with 70-90 A adjustable current range and 1170 A magnetic trip release for industrial motor protection and control panel applications.
Original price was: £299.52.£199.12Current price is: £199.12.
The IMO C4/100R-90 is a robust thermal magnetic motor circuit breaker designed to provide reliable protection for industrial motors, control panels and machinery applications. As part of the IMO C4 motor protection circuit breaker range, it combines adjustable thermal overload protection with magnetic short-circuit protection in a compact, panel-friendly format.
This motor protection circuit breaker helps safeguard motors against overloads, phase failure conditions and high fault currents, reducing the risk of equipment damage and unplanned downtime. Its rotary handle design, DIN rail mounting capability and accessory compatibility make it suitable for use in modern motor control centres and industrial automation panels.
With an adjustable current range of 70-90 A and a magnetic trip rating of 1170 A, the C4/100R-90 is ideal for protecting larger three-phase motors used in production machinery, pumps, fans, compressors and material handling systems.
Motor protection circuit breakers such as the IMO C4/100R-90 are used to protect electric motors from overload and short-circuit conditions. The adjustable thermal setting allows the device to be matched to the motor current, while the magnetic trip mechanism provides fast disconnection during high fault current events.
The C4 range is widely used in motor starter assemblies, control panels and machine installations where dependable switching, overload protection and compact installation are required. Its design supports efficient panel building while helping maintain safe and reliable motor operation.
| Current | 90 A |
|---|---|
| Manufacturer | IMO |
| Series | C4 Motor Protection Circuit Breakers |
| Model | C4/100R-90 |
| Alternative SKU | C4100R90 |
| Product type | Thermal magnetic motor circuit breaker |
| Current adjustment range | 70-90 A |
| Magnetic trip release | 1170 A |
| Poles | 3-pole |
| Operation | Rotary handle |
| Mounting type | DIN rail / panel mounting |
| DIN rail compatibility | 35 mm and 70 mm DIN rail |
| Application | Motor protection and isolation |
| Manufacturer part number | C4/100R-90 |
| Barcode | 5056207414619 |
| HS Code | 8536209090 |
| Country of Manufacture | South Korea |
The IMO C4/100R-90 is used to protect three-phase motors against overload and short-circuit conditions in industrial control panels and machinery.
This model has an adjustable thermal current range of 70-90 A.
The C4/100R-90 has a magnetic short-circuit release rating of 1170 A.
It is designed for installation in electrical control panels using DIN rail or panel mounting methods.
It is suitable for larger industrial motors used with pumps, fans, compressors, conveyors, production machinery and motor starter panels.
IMO C4 motor protection circuit breakers are used by panel builders, maintenance engineers and machine builders to provide dependable motor protection, safe switching and reliable control in demanding industrial environments.
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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...