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

Digital time relay DRV-10 with delayed turn-on/off, with display and control signal

The digital time relay DRV-10 is a universal device for time control of electrical devices. It allows setting delayed turn-on (ON Delay) or delayed turn-off (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 domestic, commercial, and industrial applications where precise time control is required.

The relay is equipped with a clear digital display, status LED indication, and universal 230 V AC/DC or 24 V AC/VDC power supply. Its compact design takes up minimal space in the distribution cabinet.

Functions and features

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

Two operating modes – ON Delay and OFF Delay
The relay can be used for delayed turn-on or delayed turn-off of devices based on the control signal.

Switching via TR input
Time functions activate on the rising edge of the signal at the TR (TRG) input.

LED indication
Two LEDs indicate power status and relay coil status.

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 width) allows installation even in small distribution cabinets. Protection IP20.

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 fan activation (WC, bathroom), lighting

• motor start control

• delayed contactor activation

• time-controlled processes in domestic and industrial applications

When the signal is applied, the countdown activates according to the selected mode. The countdown is visible on the display.

Operating description

ON Delay – delayed turn-on

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

• After the time expires, the NO contact of the relay closes.

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

• The display shows the countdown to turn-on.

OFF Delay – delayed turn-off

• On the rising edge of the signal, the relay turns on immediately.

• The relay remains on during the time set by the timer.

• The display shows the countdown to turn-off.