Alpha AR

General information

SKU

Alpha AR

Short Description

High Performance Auxiliary Relays

Long Description

The Alpha AR Series represents a new generation of electro-mechanical tripping relays for power utility protection and control applications. Built on the Alpha relay platform, the AR provides high performance and reliability while reducing production and supply lead times. The AR auxiliary relays ensure reliable multi-contact operation combined with a high-visibility mechanical flag. The series is available as a five-contact version (AR5), a twelve-contact version (AR12) and a dual five-contact version (AR25), with options including a coil pick-up LED, operation counter and electrical reset isolation switch.

Quantity

Features

<30ms operate time
Rugged modular construction
High reliability double action contacts for high
5 or 12 heavy duty contacts available in a wide
2x elements with 5 contacts in a single case
Self-reset, hand reset and hand/electrical reset
Electrical reset interlock
High visibility electro-mechanical flag indication

Application

The effect of a fault on a power system depends on how quickly it can be detected and isolated. Modern protection schemes incorporate ever increasing digital functionality, yet highly reliable tripping and control relay elements remain essential and often represent significant cost and space in protection panel designs. The Alpha AR system meets this need by providing a compact, flexible and high-performance solution while reducing cost and lead times typical for this class of device.

alpha-ar-v01-4.pdf

alpha-ar-user-guide-v01-0.pdf