Auxiliary Relay Block PQ8NCH2JS With (4NO+3NC)

Features
1. High degree of reliability, even when it has been idle for a long time
2. 7 contacts with double interruption
3. Contact configuration can be changed with ease
4. Three mounting variants
5. Wide range of voltage & contact configurations
6. Special versions :- PQ8n…..High speed lock-out relay.

Application
The auxiliary relays type P8n…. are used for all kinds of control and protection circuits in power stations and industrial installations, where a high degree of reliability and a high contact rating are stipulated, with minimal internal consumption. Acting as instantaneous switching element, it provides galvanic separation and contact multiplication in tripping and signalling circuits of protective relays.

This Auxiliary Relay Block is easily insert in your schematic diagram and connect as you like way.

The auxiliary relays type PQ8n are instantaneous, plunger type relay with 7 contacts with double interruption. They are designed to operate from d.c. The relays can operate from a.c. when preceded by rectifier.
The magnet system comprises a fixed core and a moving, plunger-type armature, which actuates the contact bar directly. When the coil in de-energized , the armature of the magnet and the contact bar are forced back into their initial position by spring action. The contacts are arranged symmetrically in two rows, on either side of the magnet, clearly visible and readily accessible. The contact system is designed for a maximum rated voltage of 250V d.c. or a.c. The material used for the contact tips is hard silver. At the most, 3 normally closed contacts are permissible which should be distributed evenly between two sides. The field weakening resistor is cut in by means of a delayed normally closed contact on a special contact bar in series with the coil. The operation signal pops out and becomes visible when the contact system picks up (type P8nC…, PQ8nC…) or when the contact system drops off (Type PN8nC….). It is reset by pressing the button in. The relay type PN8n… is specially designed for minimum drop-out of approximately 20% of the rated voltage.The relay is available with or without drop-off operation indicator. The relay type P8n…,PQ8n…. is designed for high speed operation. PQ8n is specially design for mechanical latching. It has operation indicator which pops out when the relay latches. The relay can be hand reset by pressing in and resetting the operation indicator. A transparent protective hood of material that does not burn readily provides good protection against dust. The auxiliary relay mounted in a casing is not provided with a hood. The terminals on the sheet-metal base and 1/2’S’ flush mounting case have an opening of dia 3.8 mm for external connections.