imo c4/100r-90 thermal/mag motor circuit breaker 70-90a

Why Choose the IMO C4/100R-90 Thermal Magnetic Motor Circuit Breaker?

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.

Key Advantages

• Reliable thermal magnetic motor circuit breaker for industrial motor protection.
• 70-90 A adjustable current range for larger motor loads.
• 1170 A magnetic short-circuit release for fault protection.
• Rotary handle operation for clear switching and isolation.
• DIN rail mounting for straightforward control panel installation.
• Suitable for motor control, automation and machinery applications.

Key Features

• IMO C4 motor protection circuit breaker series.
• Thermal magnetic trip technology.
• Adjustable overload setting from 70-90 A.
• Magnetic trip release rated at 1170 A.
• Three-pole motor protection design.
• Rotary knob operation for secure switching.
• Compatible with selected IMO C4 accessories.
• Designed for DIN rail and panel mounting applications.

Technical Specifications

• 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
• Country of manufacture: South Korea

Reliable Protection for Industrial Motors

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.

Typical Applications

• Industrial motor starter panels.
• Pumps, fans and compressors.
• Conveyors and material handling systems.
• Manufacturing and production machinery.
• Motor control centres and automation panels.
• Machine building and electrical distribution systems.

Trusted by Industrial Control Engineers Worldwide

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.