712XBXC-120 Magnecraft/Schneider Electric, 712XBXC-120 Datasheet

712XBXC-120

Manufacturer Part Number

712XBXC-120

Description

RELAY, ALTERNATING, DPDT CROSS, 120VAC, 12 AMP

Manufacturer

Magnecraft/Schneider Electric

Datasheet

1.712XBXC-120.pdf (5 pages)

Specifications of 712XBXC-120

Lead Free Status / Rohs Status

RoHS Compliant part

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Energy Conservation Relays

In many applications it is important for the customer to conserve electrical energy. One approach to energy conservation in

an electrical system is to use relays that do not require constant power to maintain contact closure.

“Latching relay” is a generic term that is used to describe a relay that maintains its contact position after the control power

has been removed. Latching relays allow a customer to control a circuit by simply providing a single pulse to the relay control

circuit. Latching relays are also desirable when the customer needs to have a relay that maintains its position during an

interruption of power.

There are three main types of Latching relays. Magnetic latching, Mechanical Latching and Impulse Sequencing.

Magnetic Latching Relays

Magnetic Latching relays require one pulse of coil power to move their contacts in one direction, and another, redirected pulse

to move them back. Repeated pulses from the same input have no effect. Magnetic Latching relays are useful in applications

where interrupted power should not be able to transition the contacts.

Magnetic Latching relays can have either single or dual coils. On a single coil device, the relay will operate in one direction

when power is applied with one polarity, and will reset when the polarity is reversed. On a dual coil device, when polarized

voltage is applied to the reset coil the contacts will transition. AC controlled magnetic latch relays have single coils that

employ steering diodes to differentiate between operate and reset commands.

Mechanical Latching Relays

Mechanical latching relays use a locking mechanism to hold their contacts in their last set position until commanded to change

state, usually by means of energizing a second coil. Since the relay does not rely on a magnet, the locking strength will

not degrade over time or weaken during thermal cycling. The contacts will remain locked in the directed position until the

opposing coil has been energized. Packaging machinery that places several units into a single container would be a good

example.

Impulse Relays

Impulse relays are a form of latching relay that transfers the contacts with each pulse. Many impulse relays are made up of a

magnetic latch relay and a solid state steering circuit that, upon application of power, determines which position the relay is

in and energizes the opposite coil. The contacts transfer and hold that position when power is removed. When reenergized,

the contacts transfer again and hold that position, and so on. In order to transfer the contacts, one simply provides a single

unidirectional pulse. There is no need to redirect the control pulse or reverse the polarity.

Impulse relays can be used as wear equalizers. They are well suited for applications such as turning a single device on or off

from one or more locations with a single momentary switch or push button at each station. For example, a conveyor could be

started and/or stopped from multiple locations by means of a single button at each position.

Latching, Sequence and Impulse Relays – Application Data

785

755

385

711

Series

303

M agne cr aft S olu tion Guide 1 0 5 A

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712XBXC-120 Summary of contents

Page 1

Latching, Sequence and Impulse Relays – Application Data Energy Conservation Relays In many applications it is important for the customer to conserve electrical energy. One approach to energy conservation in an electrical system is to use relays that do not ...

Page 2

... Setting the top toggle switch to the “center position” alternates the load; while setting the switch to “Load 1” or “Load 2” will lock the relay in the respected position, preventing alternation. The alternating relay approach isn’t limited to pumping applications. The control switches could be thermostats or pressure switches, and the loads could be fans or compressors. ...

Page 3

Advantages of the 712 Alternating Relay The Complete System Solution! The Model 712 series Alternating Relay is designed for duplex pumping systems where it is desirable to equalize pump run time. The solid state alternating circuit drives an internal electromechanical ...

Page 4

... V(rms) °C °C grams 1.4 0.08 (36) (2) 0.4 (10.2) 712 Relay with the 70-750DL8-1 Socket 712XBXC 712XBXCK 712XBXCK1 DPDT CROSS DPDT, PIN DPDT, PIN WIRED PIN PIN Silver Alloy 12 300 12A @ 240V 50/60Hz 12A @ 30V 1/3 @ 120 VAC 1/2 @ 240 VAC B300 100 @ 5 VDC ( ...

Page 5

... Standard Part Numbers Part Numbers 8 Pin Octal Base, SPDT 712XAXC-12V 712XAXC-24V 712XAXC-120V 712XAXC-240A 8 Pin Octal Base, DPDT (CROSS WIRED) 712XBXC-12V 712XBXC-24V 712XBXC-120V 712XBXC-240A 11 Pin Octal Base, DPDT (PIN 11 NC) 712XBXCK-12V 712XBXCK-24V 712XBXCK-120V 712XBXCK-240A 11 Pin Octal Base, DPDT (PIN 11 NO) 712XBXCK1-12V 712XBXCK1-24V ...

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