1SAJ929500R0185 ABB CT4L185R/4 3-Phase Current Transformer 60–185 A

Why Choose the ABB CT4L185R/4 3-Phase Current Transformer?

The ABB CT4L185R/4 is a three-phase current transformer designed for current measurement with ABB Universal Motor Controllers in industrial motor control applications. With ABB order code 1SAJ929500R0185, it provides a rated primary current measuring range of 60–185 A AC and is specifically designed for applications involving higher-current motors.

The CT4L185R/4 extends the current measurement capability of compatible ABB UMC motor controllers. It measures the three motor phase currents and provides a 4 A secondary current for connection to the motor controller, enabling the UMC to monitor primary currents up to 185 A.

Designed for use with the ABB UMC100.3 Universal Motor Controller, the CT4L185R/4 is particularly suited to motor applications with nominal currents above 63 A. Its linear current transformer characteristics support dependable current measurement for motor monitoring, protection and control in industrial installations.

Key Advantages

• Purpose-designed three-phase current transformer for ABB UMC systems.
• Wide 60–185 A AC rated primary current range.
• 185 A primary / 4 A secondary current rating.
• Enables compatible UMC motor controllers to measure higher motor currents.
• Linear current transformer characteristics for reliable current measurement.
• Suitable for industrial motors with nominal currents above 63 A.

Key Features

• ABB CT4L185R/4 three-phase current transformer.
• 60–185 A AC rated primary current range.
• 185 A rated primary current.
• 4 A rated secondary current.
• Designed for use with the ABB UMC100.3 Universal Motor Controller.
• Three-phase current measurement for industrial motor applications.
• Screw terminal secondary connection.
• ABB order code 1SAJ929500R0185.

Reliable Three-Phase Motor Current Measurement

Current transformers allow a motor controller to monitor currents that exceed the controller's direct current measurement range. The ABB CT4L185R/4 measures the primary motor current and supplies a proportional secondary current to the compatible UMC, extending motor current monitoring to applications with currents up to 185 A.

The CT4L series is designed specifically for ABB Universal Motor Controller applications involving higher-current motors. Used with the UMC100.3, the CT4L185R/4 provides the current measurement information required by the controller for motor monitoring and protection functions in demanding industrial control systems.

Typical Applications

• ABB UMC100.3 Universal Motor Controller installations.
• Three-phase industrial motor monitoring.
• Motor protection and control systems.
• Motor control centres and switchgear assemblies.
• Pumps, fans, conveyors and processing machinery.
• Industrial motors with operating currents within the 60–185 A AC range.