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Contact person: Elva Zhuang&Sunny Ni
Tel:+86-573-84775555
Fax:+86-573-84776699
Phone:+86-13732570078
E-mail:sales9@great-relay.com
       sunny.ni@great-relay.com

Exhibition

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Electromagnetic mechanical self holding relay
Nov 03, 2017

Electromagnetic mechanical self holding relay

First, an overview:

DB-2JB series electromagnetic mechanical latching relay. The whole structure of relay product is novel, convenient for installation and reliable in operation. The contact resistance of relay is small, and the output load capacity of Wen Shengdi and contact is large. It is a relay specially designed for prepayment single phase watt hour meter.

Two. Structural features:

The DB-2JB series electromagnetic mechanical self latching relay adopts the mechanical self-locking mode, the working time of the coil is instantaneous, and the relay coil can be disconnected for a long time after the contacts are switched on or off. The structure of the DB-2JB series relay is terminal type, and the external terminal can be directly connected with the terminal of the terminal seat of the watt hour meter. DB-2JB series relay is closed by the mechanical locking mechanism in high pressure closed contact state, contact pressure contact pressure is greater than the common relay, so the relay contact resistance of small, ensure the reliability of long time large current work.

Three. Conditions of use:

Ambient temperature: -25~40 c;

The relative humidity of the surrounding air is less than 85%

Atmospheric pressure: 80~110kPa;

Work location: horizontal or vertical installation.

Four. Working principle:

The connection terminals of type DB-2JB relays are directly connected with the single-phase active watt hour meter after the opening of the terminal cover. Connect the neutral line (N end) to the dynamic contact point of the control relay of the prepaid watt hour meter. The green wire of DB-2JB relay is connected with the movable contact of control relay (normally open), and the red conductor of DB-2JB relay is connected with the movable break contact (normally closed) of control relay.

After the power supply is connected, when the control relay attracts (action), the coil connected by the green wire is energized, and the output terminal of the DB-2JB type relay has the power output. Because of the DB-2JB type relay adopts the self-locking mechanism, when connected to the input and output power supply circuit, instantaneous power switch coil (K) immediately disconnect the coil, no electricity, and contact output is locked, power supply circuit. When the control relay return (return), red coil wires power output, DB-2JB relay terminal disconnect the power output power supply, automatic tripping self-locking mechanism to restore the original state of coil is energized, the switch (K) return coil is not energized. Because the coil of DB-2JB type relay does not need long-term power supply, the coil power consumption of relay is very small, and the power supply can be saved.

Five. Instructions for ordering:

- please note: relay name and type (specifications) and the number of orders

Ordering example: 100 DB-2JB60 type electromagnetic mechanical self retaining relay number model name 100 DB-2JB 60 electromagnetic mechanical self holding relay


Add: No.38 South Taoyuan Road, Yaozhuang Town,Jiashan County, Jiaxing City, Zhejiang Province, China
Contact person: Elva Zhuang&Sunny Ni
Tel:+86-573-84775555
Fax:+86-573-84776699
Phone:+86-13732570078
E-mail:sales9@great-relay.com
       sunny.ni@great-relay.com