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  • Power relays are designed to withstand the current of the electrical circuit into they are inserted and to cut off the electrical circuit under load. Power relays are usually constructed in that the electromagnet with yoke, the contact system, and the arc extinguishing equipment, are built separately, and the relay as a whole is subsequently assembled from such subassemblies. A power relay may include a slide for operating a contact spring. The slide has an end edge lying parallel to the surface of the contact spring that contacts and pushes against the broad side of a contact spring for actuating the middle contact spring. Electromechanical relays comprise one or more electrical contacts having a mechanical movement, these being coupled to a moveable element of the magnetic circuit of an electromagnet. The development and ready availability of various solid state electronic devices has replaced the old reliable electromagnetic relay for controlling the flow of AC power while affording electrical isolation between the switching path and the actuating control elements.
Mini power relay

Name: JZX-18FH Power Relay

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Ordering Information

mini power relay
JZX-18FH Power Relay
mini power relay
Mini power relay

Features

* 7A switching capabilities.
* 2 to 4 pole configurations.
* 1.5KV dielectric coil to contacts. 2.5KV is available.
* Various terminals, test button available.
* Au-claded contact available.
* Conform to the CE low voltage directive

Contact Data

Contact Arrangement 2C,3C 4C
Initial Contact Resistance Max. 50mΩ(at 1A 24VDC)
Contact Material Silver Alloy
Contact Rating(Res.Load) 5A,7A/250VAC 30VDC 3A,5A/250VAC 30VDC
Max.switching voltage 250VAC/30VDC
Max.switching current 7A 5A
Max.switching power 210W 1750VA 150W 250VA
Mechanical life 2 × 107 OPS
Electrical life 1 × 105 OPS

Characteristics

Initial Insulation Resistance 1000MΩ,500VAC
Dielectric Strength Between coil and Contacts 1500VAC 1min.
Between open contacts 1000VAC 1min.
Between contact sets 1500VAC 1min.
Operate time (at nomi,Volt.) 25ms
Release time (at nomi.Volt.) 25ms
Shock Resistance Functional 100 m/s2
Destructive 1000 m/s2
Vibration Resistance 1mm, 10 to 55Hz
Humidity 35% to 95%
Ambient temperature -55℃ to + 70℃
Termination PCB & Plug-in
Unit weight 39g
Construction Dust Cover

Coil Power

Coil Power DC: 0.9W AC 1.2VA

Coil data

Nominal Voltage VDC Pick-up Voltage
VDC
Drop-out
Voltage
VDC
Coil ResistanceΩ   Nominal Voltage VDC Pick-up Voltage
VDC
Drop-out
Voltage
VDC
Coil ResistanceΩ
5 4.0 0.50 27.5±10% 6 4.80 1.80 11.5±10%
6 4.8 0.60 40±10% 12 9.60 3.60 46±10%
12 9.6 1.20 160±10% 24 19.2 7.20 184±10%
24 19.2 2.40 650±10% 48 38.4 14.4 735±10%
48 38.4 4.80 2600±10% 120 96.0 36.0 4550±10%
110 88.0 11.0 11000±10% 220/240 176.0 66.0 14400±10%

Outline Dimensions And Wiring Diagram


mini power relay mini power relay

Characteristic Curves

mini power relay
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