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Allen Bradley 81001-450-52-R Overload Relay

Allen Bradley 81001-450-52-R Thermal Overload Relay

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ManufacturerAllen Bradley

Part number81001-450-52-R

Type Thermal Overload Relay

Max Adjustable Current 52A

Reset Manual/Auto

Phase Loss Protection Yes

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Veteran-owned

CAGE: 9NK75

Adjustable trip current up to 52A Thermal overload protection Phase loss sensitivity Manual and auto reset Designed for motor protection

Product description

The Allen Bradley 81001-450-52-R is a thermal overload relay designed for motor protection. It features an adjustable trip setting up to 52A, allowing for precise calibration to protect motors from overcurrent conditions. This relay is typically used in conjunction with motor starters to provide reliable overcurrent and phase-loss protection.

This overload relay is essential for safeguarding electric motors in a wide range of industrial applications, including manufacturing plants, pumping systems, and material handling equipment. By detecting overloads and phase unbalance, it helps prevent motor damage, reducing costly downtime and maintenance.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Allen Bradley 81001-450-52-R. We provide a reliable source for quality surplus components, ensuring you can quickly procure necessary parts to maintain your operational continuity and efficiency.

Technical specifications

Type	Thermal Overload Relay
Max Adjustable Current	52A
Reset	Manual/Auto
Phase Loss Protection	Yes
Manufacturer	Allen Bradley

Common applications

Motor starters

Industrial motors

Manufacturing equipment

Pump control

Conveyor systems

Compatible systems

Allen Bradley motor starters Industrial control panels Motor control circuits

Also known as

Allen Bradley Overload Relay 52A Thermal Motor Protector 81001 Series Overload

Replaces / compatible with

Compatible with Allen Bradley motor starters and control systems requiring a 52A adjustable thermal overload relay. Consult manufacturer documentation for specific starter compatibility.

Technical note

Expert tip

For optimal motor protection, the overload relay's trip setting should be set close to, but not exceeding, the motor's full load amperage (FLA) rating.

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Frequently asked questions

How do you adjust the trip setting on the Allen Bradley 81001-450-52-R overload relay?

The trip setting on the 81001-450-52-R is adjusted using a dial or knob, typically located on the front of the relay. This allows you to set the maximum current, up to 52A, at which the relay will trip and disconnect power to the motor.