Allen-Bradley Electronic Motor Protection Relay

Description

The Allen-Bradley CEFB1 is a robust electronic motor protection relay designed to provide reliable overload protection for three-phase motors. It features a wide adjustable current setting and is built to withstand demanding industrial environments. This relay is an essential component for motor control centers and machinery requiring precise and dependable motor protection.

Specifications

• Manufacturer: Allen-Bradley
• Model: CEFB1
• Series: A
• Type: Electronic Motor Protection Relay
• Setting Range (Ie): 20 to 180 A
• Rated Voltage (Ue): up to 1000V 50/60 Hz
• Control Supply Voltage (Us): 230V 50/60 Hz
• Auxiliary Contacts: 1 NO + 1 NC

Label Info

• Standards: IEC 947, EN 60947
• Certifications: CE, UL, SP
• USA/CND Rating: Ue = 600 Vac max.

Application

Ideal for use in various industrial applications, including conveyors, pumps, fans, and mixers, where reliable motor overload protection is critical for operational safety and equipment longevity.

Country of Origin

Made in Switzerland.

CO2 Impact

By purchasing this pre-owned relay, you are contributing to the circular economy and avoiding approximately 20 kg of CO2 emissions associated with the production of a new unit. This saving is comparable to the emissions from a 100 km car journey.

Availability

This item is a tested, pre-owned component in good working condition. It is an excellent choice for repairs or as a spare part for legacy systems. Order now from PLC2Day for expert support and fast delivery.

FAQ

The trip class is adjustable via DIP switches on the front panel. It typically offers settings like Class 10, 20, or 30, allowing you to match the relay's trip time to the motor's starting characteristics.

Yes, the CEFB1 is designed for flexibility. It can be directly mounted onto compatible Allen-Bradley contactors for a compact assembly or mounted separately on a standard DIN rail using an appropriate adapter.

The LEDs provide a quick visual status of the motor. A green LED typically indicates normal operation (power on), while a red or amber LED illuminates to signal a trip condition, such as an overload or phase loss fault.

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Friday, March 13, 2026