High Speed Tripping Relays Block VAHM23 With (4NO+4NC)

Features and technical specifications:

1. High speed operation
2. High degree of mechanical stability
3. Positive action without chatter
4. Compact
Relay coil short time rated. Hand reset coil cut off contact provided in series with operating coil.

Application

High speed tripping duties where a number of simultaneous switching operations are required.
This High Speed Tripping Relays Block is easily insert in your schematic diagram and connect as you like way.

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 may trip a circuit breaker directly, or according to the coil rating and the number of circuits to be energized, may do so using a VAJ tripping relay. The VAJ relay interfaces the protection to provide the higher contact capacity, additional contacts for tripping multiple circuit breakers, control functions, signalling and interlocking.A fast operating multi contact attracted armature relay with a high degree of mechanical stability. Type VAJHM 23 high burden relay with hand reset contact is recommended where supervision of trip relay coil is desired. The operating current for all versions is in excess of 0.025 amp.and the relays are suitable for operation on D.C supplies fitted with a negative potential biasing device. High burden relays are recommended in high security circuit breaker tripping circuits. The high burden provides immunity against operation due to capacitance discharge currents. Low burden relays are generally used when a number of simultaneous operations are to be initiated by a single protective relay having insufficient contacts of its own and where series connected operation indicators are not used.