ReviewsOpen Relay

Voltage Monitoring Relay DC 12V/24V/36V/48V Over-Voltage and Under-Voltage Protection Relay 35MM Guide Rail 13-17V 10-14V DC48V

Protection function: over voltage, under voltage.
Contact capacity: 6A 250VAC (resistivity).
REAL-TIME MONITORING---The voltage monitoring relay could achieve real-time monitoring of dc overvoltage and undervoltage faults, and over-voltage, under-voltage value, and action time can be adjusted.
MAIN FEATURES---The voltage monitoring relay is of 2 sets of normally open and normally closed contacts, 2 indicator lights indicate various working conditions, no additional auxiliary power supply is required.
35MM GUIDE RAIL---With 35mm guide rail and standard modular structure, the voltage monitoring relay is easy to install, easy to operate.
TYPICAL APPLICATIONS---The voltage monitoring relay is typically applied in dc motor, battery,UPS power supply, dc switchgear, dc panel, industrial control system.

High switching capability: Normally open 40A/14V DC and normally close 30A/14V DC. Suitable for Nilight LED light bar wiring harness kit.
Premium quality: Durable relay and harness socket with 5 wires.
Made by high-grade materials to ensure superior quality and long lifespan.
Male-female slot design: Unique male-female slot design, easy to connect the relay with harness socket, clean and neat after installation.
Easy wiring: The relay sockets come with different colors for loads/accessories, simple and convenient wiring.
Package include: 5 x relay and 5 x relay socket with wires.Fit type: Universal fit.

Voltage RegulationWhen a faulty line occurs, the voltage protection relay can adjust the overvoltage value and the action time, and record the fault for more flexible use..
Real-time MonitoringThe voltage protection relay can monitor overvoltage and undervoltage faults in real time and take protective measures in time..
LED DisplayThe voltage protection relay includes two sets of normally open and closed contacts, and the two indicator lights respectively indicate different working states..
Rail MountingThe voltage protection relay adopts a standard modular structure and is mounted on a 35mm rail without additional auxiliary power..
Our ServiceWe strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time..

Large PA systems driven by external amplifier(s).
Small PA systems driven by internal PA1 amplifier (eg. door answering system), and internal relay to open door(s).
Phone ringer amplifier with ability to drive strobe light as visual indicator.
Multi-cast relay up to 4 SIP identities to four multi-cast IP addresses.

Heavy-duty impact molded relay socket with 5 WIRES。White (common), Black (normally closed), and Yellow (normally open)..
Package Include: 4 relays + 4 relay sockets with wires..
Safety UL Listed 6" wires with pigtail leads for the main contact..

Input control signal: Voltage AC or DC 24V, Current 17mA..
Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch)..
Compact plastic case and wires connects for easy mount. LED indication for relay action..
This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw..

Input control signal: Voltage AC 87~143V, Current 6mA..
Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch)..
Compact plastic case and wires connects for easy mount. LED indication for relay action..
This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw..

This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close..
Input control signal: AC/DC 5V, AC/DC 12V, AC/DC24V, AC/DC48V, AC 115V, AC 230V Selectable..
Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch)..
Compact ABS plastic case and wires connect for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw..

This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close..
Input control signal: AC/DC 5V, AC/DC 12V, AC/DC24V, AC/DC48V, AC 115V, AC 230V Selectable..
Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch)..
Compact ABS plastic case and wires connect for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw..

This module uses genuine relays and normally open interfaces. High stability and low power consumption..
Strong driving ability, stable and reliable performance. High efficiency, fine workmanship, and durable..
Add one more ESP-01S module. This smart relay module is based on the ESP-01S WIFI module design. It can be used to DIY your own smart switch. It can be remotely controlled by the mobile phone APP and provides APP and LUA source programs. It's easy to use right away..
The package includes：2 pcs ESP8266 ESP-01S Relay module, relay WIFI smart socket (with ESP-01S).
We are very grateful for all customers’ opinions to improve sales, if you are not satisfied, please contact us to find the best solution.