Relay 24V 4-channel with high/low level control

Perfectly suited for alarm and telecommunication installations.

1. Equipped with genuine quality relay

   • Max load: AC 250V/10A, DC 30V/10A (normally open contact)

2. Double optocoupler isolation for high safety and stable performance

   • Trigger current: only 5 mA

3. Working voltage: 5V

4. Each channel can be configured to be triggered by high or low level (via jumper)

5. Fault-tolerant design – if the control line is broken, the relay will not be activated accidentally

6. LED indicators:

   • Green: power indicator

   • Red: relay status for each channel

7. User-friendly layout – all connections are accessible via clear screw terminals

Interface:

Power connection:

• DC+: Connects to the positive pole of the power supply

• DC-: Connects to the negative pole of the power supply

Control signals:

• IN1, IN2: Controls the respective relay depending on the set trigger level (high/low)

Relay output:

• NO1, NO2 (Normally Open): Normally open contact – open in idle state, closed when activated

• COM1, COM2: Common connector

• NC1, NC2 (Normally Closed): Normally closed contact – closed in rest position, open when activated

Trigger level selection:

• S1, S2: Jumper selection for trigger level on relay 1 and 2

• If COM on the jumper is connected to low level → low-level triggering

• If COM is connected to high level → high-level triggering