Panel Mount Time Relay ERD-48M - Universal Digital Timer for Industrial and Home Automation

The ERD-48M panel mount time relay is a universal digital timer designed for controlling time cycles, industrial processes, single-function equipment, and home automation. It offers 13 different operating modes, precise programming, and a wide range of control options.

The device allows easy setting of time sequences from 0.1 seconds to 99.59 hours using buttons on the front panel. Thanks to the dual LED display, values are clearly visible and legible even from a distance.

Key Features:

• Multifunctional digital timer with START / RESET / GATE control inputs.

• 13 programmable modes for a wide range of applications

• Time units: hours (99:59) / minutes (99:59) / seconds (599.9 s)

• Last status memory - remembers settings and output status during power failure

• Two LED displays:

  • Upper line (red): set value

  • Lower line (yellow): current measured time or status

• OUT relay closure indication with red LED

• Built-in sensor power supply: 12 V DC, max. 50 mA

• Compatible with 24 V DC signals (PNP) or custom 12 V output from terminal 9.

• Robust construction, 48 × 48 mm panel mount

Functions and Controls

The device has 13 different operating modes, providing complete control flexibility:

• Power-on delay

• Power-off delay

• Cyclic ON/OFF

• Single time setting

• Sequential logical control

• Time relay with pause (GATE)

• Other special time modes

(A list of the 13 modes can be added upon request.)

Control Inputs:

• START (Terminal 10): activates the timer.

• RESET (Terminal 11): resets the timer.

• GATE (Terminal 12): pauses the countdown (PAUSE).

• Terminal 9: integrated +12V DC supply for sensors/control buttons (max. 50 mA).

Outputs

Relay output OUT1 (terminals 4-3-5):

• Type: SPDT switch (NO-COM-NC)

• Load: 250 VAC / 2 A, resistive load

SSR output OUT2 (terminals 13 and 14):

• Control signal for solid-state relay

• Maximum output level: 30 V DC

Technical Specifications

• Supply Voltage: 100...240 VAC, 50/60 Hz

• Power Consumption: < 8 VA

• Time Range:

  • 0.1 s to 599.9 s

  • 0 to 99:59 min

  • 0 to 99:59 h

• START/RESET/GATE Inputs: 7-32 V DC (ON), 0-2 V DC (OFF)

• Display: 2 × 4-digit, 7-segment LED (red + yellow)

• Operating Temperature: -20 °C to +55 °C

• Panel Mounting Hole: 44 × 44 mm

• Overall Dimensions: 48 × 48 × 99 mm

• Operating Altitude: < 2000 m

• Installation: Panel mount, front mounting