Protective relays are precise measuring devices, the contacts of which

should not be expected to switch large electrical loads.

In some cases, the protective relay can trip a circuit- breaker directly,

or according to coil rating and the number of circuits to be energised.

The MVAJ relay interfaces with the protection to provide: higher contact

additional contacts for tripping multiple circuit-breakers, control functions,

signalling interlocking.

The MVAJ range comprises very reliable hinged armature relays designed

to operate circuit-breaker trip coils. Built to very high specifications, the

MVAJ range a highly flexible and reliable link between the protective relays

and the circuit-breakers.

Low Burden Application

These relays are suitable for general applications where the

initiating contact is located close to the relay. When configured

for low burden applications, by removing the external link from

terminals 22 and 24. the burden is either cut off during operation

or is economised to a low figure instantaneously.