# XH-M609 module, low voltage disconnect, 7-50V

> XH-M609 module for automatic disconnection of the load at low voltage, operates between 7 and 50VDC (supply voltage 6-50VDC). Disconnect and reconnect thresholds are adjustable in 0.1V steps, display shows real-time voltage, status LED, 20A relay rated at 14VDC / 20A at 125VAC. Standby consumption 0.2-0.5W, operating consumption 1-2W. Dimensions 57 x 42 x 19mm.

- Page: https://sigmanortec.ro/en/xh-m609-module-low-voltage-disconnect-7-50v
- Price: 14.22 RON
- Availability: In stock; 1-2 zile
- Reference: 9510 · EAN: 5946537077922
- Category: Mechatronics and IoT > Sensors and Modules > Voltage and Current Sensors
- Specifications: Supply Voltage: 7; Maximum Input Voltage: 50; Output Type Voltage: Closed-Open Contact; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.029 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 03:25 (Europe/Bucharest)

## Description

The XH-M609 module ensures automatic disconnection of the consumer at low voltage, protecting the battery against excessive discharge, operates between 7 and 50VDC, the disconnection and reconnection thresholds are easily programmable in 0.1V steps, the display indicates the voltage in real time, the 20A relay switches the load and the LED confirms the operating status.
Low voltage consumer disconnection module, XH-M609, which can operate at voltages between 7 and 50VDC.
This module is used to protect the battery from discharge when the supply voltage drops below the set level. The circuit restarts when the input voltage reaches the set threshold.
The display shows the input voltage in real time and the integrated LED lights up and remains lit as long as the relay is activated and the consumer is switched on. The LED goes out to signal the relay is off and the circuit is broken.
Important: The module does not stop when the circuit is broken. It still displays the input voltage, which means that there is a constant consumption between 0.2W and 0.5W, depending on the supply voltage. In the long term, depending on the capacity of the battery, it will discharge continuously (for a 12V battery the consumption is about 0.03A).
Use:
- Connect the battery to VIN+ and VIN-, the module displays the battery voltage.
- Double-press the Left button quickly to change the relay cut-off voltage. Use the two buttons to change the value. Short press for changes in 0.1V steps, long press for changes in 1.0V steps.
- Long press the Right button to change the reconnection voltage. This value is expressed in the set value for the fuse plus the set value. Use the two buttons to change the value. Short press for changes in 0.1V steps, long press for changes in 1.0V steps.
Example: You want to disconnect the consumer at 11V in the battery and reconnect it at a voltage of 13V in the battery. Press the Left button briefly twice and set the value 11.0. Wait for the real voltage to return to the display. Press and hold the Right button and set the value 2.0. When the battery voltage drops to 11V, the relay is turned off. When the voltage rises to 13V (11+2) the relay is activated. This cycle is repeated continuously.
Specifications:
Supply voltage: 6 - 50VDC
Output voltage: equal to input voltage
Standby consumption: 0.2 - 0.5W (lower consumption at lower voltage)
Operating consumption (activated): 1 - 2W (lower consumption at lower voltage)
Model: XH-M609
Control resolution: 0.1
Maximum settable voltages: 6 - 50VDC
Offset range: 0.1 - 10VDC
Maximum relay specifications: 20A at 14VDC, 20A at 125VAC
Dimensions mm: 57 x 42 x 19mm