Applicable scope
The series of intermediate relays for protection and automatic control device, in order to increase the protection and control circuit for the number of contacts and contact capacity.
Model and meaning
The structure and principle of
The relay for solenoid valve relay, coils in the shape of the guide magnet, magnet above a movable armature guide on both sides of the magnet is equipped with two rows of contact shrapnel. In the non action state contactswill keep up on the armature, and a certain gap between armature magnet. When the air gap between the electromagnetic torque exceeds the reaction torque, the armature is ceiling guide magnet, and armature dynamic pressure contact elastic piece, the normally closed contact disconnected normally open contact is closed, relay.When the electromagnetic torque decreases to a certain value, due to the elastic sheet contact reaction torque, and make contact with the armature to return to the initial position. Preparing for the next work.
The relay "" type magnetizer with double core structure, namely on two side pillars can be installed coil. For DZY, DZL and dzj type only a coil, and to DZBDZL DZK according to need in another core is provided to keep the coil or delay with damping sheet etc.. So that the coil type different relays have a general guide magnet.
DZY, dzb, DZS 220 volt coil wires used is very thin, easily broken, refused to move to protect the device that caused the accident, mainly because after the failure of the bakelite skeleton decomposition of amine of thin wire erosion. The relay of such coil with thicker wire and the bakelite skeleton, so as to improve the reliability of the product.
The main technical parameters
1 action value, retention value:
A operation voltage and keep the voltage not more than 70% of the rated voltage. DZJ-200 action of voltage not more than 80% of the rated voltage, operating voltage is not less than 30% of the rated voltage, and DZB-243 DZK-200 not less than 50% of the rated current.
B operation current and maintain the current rated current is less than 80%.
2: the return value is not less than 50% ratings, DZB-200 and DZS-200 is not less than 3% of rated value.
The appearance and installation size
Embedded
Block type
Forward looking
Convex type front wiring
