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Allen Bradley 813S-V3-480V MachineAlert 3-Phase Voltage Relay

Allen Bradley 813S-V3-480V 3-Phase Voltage Monitoring Relay

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ManufacturerAllen Bradley

Part number813S-V3-480V

Type Voltage Relay

Number of Phases 3 Phase

Voltage 480 Volt

Contact Configuration 2 NC

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Veteran-owned

CAGE: 9NK75

3-Phase Voltage Monitoring 440-480V AC Range Under & Overvoltage Protection Phase Loss/Imbalance/Reversal Protection Adjustable Time Delay Auto Reset

Product description

The Allen Bradley 813S-V3-480V is a 3-phase voltage monitoring relay designed for industrial applications requiring precise voltage supervision. It offers protection against under- and overvoltage, phase loss, imbalance, and reversal. With a voltage rating of 440-480V AC and 2 NC contact configuration, this relay ensures critical equipment operates within safe parameters. It features adjustable time delay and programmable latch or inhibit settings.

This relay is essential for protecting three-phase motors and systems in manufacturing plants, pump stations, and conveyor systems where maintaining stable voltage is crucial for operational integrity and preventing damage. Its self-powered design simplifies installation.

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Technical specifications

Type	Voltage Relay
Number of Phases	3 Phase
Voltage	480 Volt
Contact Configuration	2 NC
Enclosure Rating	IP20
Standard	CCC, KC
Features	Under/Overvoltage Protection, Phase Loss/Imbalance/Reversal Protection, Adjustable Time Delay, Auto Reset

Common applications

Motor Control Centers

Industrial Automation

Pump Stations

Conveyor Systems

Manufacturing Plants

Compatible systems

Designed for use in 3-phase industrial electrical systems.

Also known as

813S 3-Phase Relay Allen Bradley 480V Relay MachineAlert 813S-V3-480V

Replaces / compatible with

This relay is part of the Allen-Bradley MachineAlert 813S series, offering advanced protection for three-phase systems.

Technical note

Expert tip

The 813S-V3-480V is self-powered, simplifying installation by eliminating the need for a separate control power source.

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Frequently asked questions

What are the protection features of the Allen Bradley 813S-V3-480V?

The Allen Bradley 813S-V3-480V provides protection against under- and overvoltage, phase loss, phase imbalance, and phase reversal. It also features adjustable time delays and programmable latching or inhibit functions.