Timer / Time delay on/off relay / One Shot Relay

Digital time relay DRV-10 with switch-on and switch-off delay, display, and control signal

The digital time relay DRV-10 is a universal device for time-controlled operation of electrical equipment. It allows setting a switch-on delay or a switch-off delay within a range of up to 99 minutes. The relay is triggered by a control signal at the TR input and is suitable for residential, commercial, and industrial applications requiring precise time control.

The relay features a clear digital display, an LED status indicator, and a universal 230 V AC/DC or 24 V AC/VDC power supply. Thanks to its slim design, it takes up little space in the rack.

Functions and features

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

Two operating modes - switch-on delay and switch-off delay
The relay can be used to delay the switching on or off of the device depending 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 display
Two LEDs indicate the status of the power supply and the relay coil.

Universal power supply
- 230 V AC/DC (terminals A1-A2)
- 24 V AC/VDC (terminals A2-A3)

Easy mounting on DIN rail
Compact design (23 mm wide) allows placement even in small cabinets. Protection rating IP20.

Technical parameters

• Time range: 1 s - 99 min

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

• LED indicator: 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 rating: IP20

• Dimensions: 90 × 23 × 58 mm

Application

The relay is suitable for:

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

• Motor start control

• Delayed switching of contactors

• Time-controlled processes in domestic and industrial applications

When a signal is present, the timer is activated according to the selected mode. The countdown is displayed on the screen.

Operation description

ON delay - delayed switching on

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

• After the time has elapsed, the relay's normally open contact switches on.

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

• The display shows the countdown until switching on.

OFF delay

• After the rising edge of the signal, the relay switches on immediately.

• The relay remains in the on state for the time set by the timer.

• The display shows the countdown until activation.