Timer / On/Off Relay / One-time Relay

Digital Time Relay DRV-10 with ON/OFF delay, display, and control signal

The digital time relay DRV-10 is a versatile device designed for time-based control of electrical equipment. It can be set for an ON or OFF delay of up to 99 minutes. The relay is activated by a control signal at the TR input and is suitable for household, commercial, and industrial applications where precise timing is required.

The relay features a clear digital display, LED status indication, and a universal 230 V AC/DC or 24 V AC/VDC power supply. Its narrow design takes up minimal space on a DIN rail.

Functions and Features

Digital Display
Allows easy setting and monitoring of the countdown. Shows time in seconds or minutes, depending on the selected mode.

Two Operating Modes - ON Delay and OFF Delay
The relay can be used for delaying the activation or deactivation of a device based on a control signal.

Switching via TR input
Time functions are activated by the rising edge of the signal at the TR (TRG) input.

LED Indication
Two LEDs indicate the status of the power supply and the relay coil.

Universal Power Supply
- 230 V AC/DC (A1-A2 terminals)
- 24 V AC/VDC (A2-A3 terminals)

Easy Installation on DIN Rail
Compact design (23 mm width) allows installation even in small cabinets. IP20 protection.

Technical Parameters

• Time range: 1 s - 99 min.

• Contact: 1× changeover NO/NC, 5 A / 250 V AC

• LED indication: power supply, relay coil

• Power supply:
  - 230 V AC/DC / 4 VA (A1-A2)
  - 24 V AC/VDC (A2-A3)

• Mounting: 35 mm DIN rail

• Protection: IP20

• Dimensions: 90 × 23 × 58 mm

Application

The relay is suitable for:

• Delayed activation of fans (toilet, bathroom), lighting

• Motor start control

• Delayed contactor switching

• Time-controlled processes in residential and industrial settings

When the signal is activated, the time setting starts according to the selected mode. The countdown is visible on the display.

Description of Operation

ON Delay - Delayed Activation

• Upon the rising edge of the TR input signal, the set time countdown begins.

• After this time, the relay's NO contact activates.

• The relay remains activated until the next rising edge of the TRG input signal.

• The display shows the countdown until activation.

OFF Delay

• Upon the rising edge of the signal, the relay activates immediately.

• The relay remains activated for the set timer duration.

• The display shows the countdown until deactivation.