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INTERMEDIATE RELAY

Introduction

An intermediate relay is an electromagnetic switch that acts as a buffer between a low-power control circuit and a high-power load circuit. It is used to amplify signals, isolate circuits, and split control signals into multiple outputs.

Main Functions:

  • Signal amplification: Allows small current/voltage signals (e.g., from PLCs or sensors) to directly control heavy load devices like motors or lighting systems.
  • Electrical isolation: Ensures safety by protecting the central controller from overcurrent and overvoltage issues in the load circuit.
  • Contact multiplication: From a single input signal, the relay can activate multiple contacts (usually 4 to 8) to control several components simultaneously.

Structure & Classification:

  • Structure: Consists of an electromagnetic coil, a contact system (Normally Closed NC / Normally Open NO), a spring, and a protective housing.
  • Classification: Categorized by specifications such as voltage (5V, 12V, 24V DC, 220V AC...) or the number of pins (5 pins, 8 pins, 11 pins, 14 pins).

iLEC Intermediate Relay – Model MR

Features

  • Compact and durable construction with high dielectric strength.
  • Transparent cover for clear visibility of internal operations.
  • Manual test button with locking clip for convenient maintenance (Green: DC, Orange: AC).
  • Clear mechanical and LED status indicators.
  • Terminal layout printed directly on the case for easy wiring.
  • DIN rail or panel mounting options.

Applications

  • Industrial control panels.
  • PLC intermediate control & status monitoring circuits.
  • Control of lights, fans, motors, contactors, and solenoid valves.
iLEC intermediate relay

General Characteristics
Type Electromagnetic intermediate relay
Terminal type Contact meterial
Contact resister < 50mΩ
Operate/Release time < 20ms
Insulation resister ≥ 500mΩ (500VDC)
Electrical/Mechanical life ≥ 100.000 times / 10.000.000 times
Operating temperature -25ºC ~ 55ºC
Humidity 35~85% RH
Atmospheric pressure 86~106 KPa
Dimension (WxHXD) 21 x 42.5 x 27 (mm)
Weight 32~3g
Suitable socket Model PYF
Ordering information MR relay

Technical Data
Model MR-2-A230 MR-4-A230 MR-2-D24 MR-4-D24
Number of pins 8 pins 14 pins 8 pins 14 pins
Coil voltage 230VAC 230VAC 24VDC 24VDC
Contact configuration 2NO+2NC 4NO+4NC 2NO+2NC 4NO+4NC
Contact rating 10A 5A 10A 5A

DC Coil Data
Rated Voltage VDC Pickup Voltage VDC Dropout Voltage VDC Coil Resistance Ω±10%
5 4.0 0.5 0.5
6 4.8 0.6 0.6
12 9.6 1.2 1.2
24 19.2 2.4 2.4
48 38.4 4.8 4.8
110 88.0 11.0 11.0

AC Coil Data
Rated Voltage VDC Pickup Voltage VDC Dropout Voltage VDC Coil Resistance Ω±10%
6 4.80 1.80 10.5
12 9.60 3.60 46.5
24 19.2 7.20 192
48 38.4 14.4 783
110 / 120 88.0 38.0 4000
220 / 240 176.0 66.0 15000

Dimensions

iLEC MR relay – Dimension

Wiring diagrams

iLEC MR relay – Wiring diagram
iLEC MR relay – Wiring diagram

Product marking

iLEC MR relay – product marking

iLEC PYF Series Sockets

Product Appearance

  • Compact design with high-strength, insulated, and flame-retardant engineering plastic.
  • Dual-side screw terminal wiring for effortless relay replacement.
  • DIN rail and screw mounting support for convenient wiring and panel maintenance.
  • Terminal layout printed directly on the housing for fast and accurate wiring.
  • PYF08A-E is compatible with MR-2 and standard 8-pin intermediate relays.
  • PYF14A-E is compatible with MR-4 and standard 14-pin intermediate relays.
iLEC PYF08A-E Socket
iLEC PYF14A-E Socket
Model PYF08A-E PYF14A-E
Number of Positions 8 pins 14 pins
Load Current/Voltage 12A 300VAC 7A 300VAC
Dielectric Strength Voltage 2kV 2kV
Wire size (AWG/mm²) 20-16/0.5-1.5 20-16/0.5-1.5
Tightening Torque (Nn) 0.7 0.7
Terminal Ingress Protection IP20 IP20
Compatible Relay MR-2 series relays MR-4 series relays
Product size 22 x 75.5 x 31 (mm) 29 x 75.5 x 31 (mm)
Mounting hole pitch 15 x 59 (mm) 22 x 59 (mm)
Screw Size 2 x M4~M10 2 x M4~M10
Weight 33g 52g

Dimensions

iLEC PYF Socket – Dimension

Connection diagrams

iLEC PYF08A-E – Connection diagram
iLEC PYF14A-E – Connection diagram

Product marking

iLEC PYF08A-E – Connection diagram
iLEC PYF14A-E – Connection diagram

Resources & Support

Hits: 144

WEEKLY TIME SWITCH

Model WTS1

General description

  • The WTS1 is a programmable digital timer switch with relay output.
  • It can be used to turn on or off lights, appliances or other small loads on specified days of the week and times.
  • The switching on and off times are repeated daily and (or) weekly.
  • The timer support up to 16 different programs daily / weekly schedules.
  • Manual mode is available to overrule the programmed relay events.
  • A super capacitor inside the timer switch keep the RTC running at least 150 hours (700 hours expected) and it will be charged when the timer is connected to an AC power.
  • The DIN rail mount of this timer switch makes it suitable for power management in a control panel.

Specifications

Parameters
Number of circuits Change over switch (SPDT)
Rated voltage 110–220VAC, 50/60Hz
Power consumption 4.5VA (max.)
Operation 16 ON + 16 OFF
Pulse width 1min – 23h 59min
Daily program 16 combination
Clock error ≤2 sec/day (25ºC)
Switching contact 1 changeover switch
Contact rating 16 @250VAC (Resistive)
8A @250VAC (pf=0.8IND)
Battery reserve Warranty 150 hours, espected > 700hours (Rechargeable)
Load capacity 30(16A) 240VAC (Ohmic load cosφ=1)
Display LCD realtime Hour/Minute and ON / AUTO / OFF
* Days of week + Real time clock
* Auto / On / Off
* Relay status (ON or OFF)
Service life Mechanically & Electrically: 10.000 hours
Operating temperature 10ºC ~ 55ºC
Humidity 35 ~ 85% RH
Installation DIN rail 35mm
Dimension 87 x 36 x 69 (mm)

Connection terminals

● L, N : Auxiliary power supply 110–220VAC
ON LED will light when power is available.
● 3, 4, 5 : Changeover switch SPDT.
Terminal 3 is Common
3-4: NO contact
3-5: NC contactable

Front Panel Description

LCD display explanation

Operating method

  • First time use this timer switch, please input power and left battery recharge.
  • After then press " RESET "
  • Clock setting: Press " D+ " key, " M+ " key respectively to adjust clock of Timer to accurate ADTE, HOUR, MINUTE

Resources & Support

Review iLEC WTS1 – Weekly Timer Switch

Hits: 52

MULTIFUNCTIONAL FLASHER TIMER

Model RT6-D10-U

Introduction

RT6-D10-U flasher relays are designed for every usage (industry, house, plant etc..) which needs double timing controll.

Specifications

PARAMETER VALUE
Operating voltage (Un) AC 160V–260V (A1-A2); AC/DC 24V (A3-A4)
Operating frequency 50/60Hz
Operating power <6VA
Operating temperature -20ºC ~ 55ºC
Ton time 1sec – 100hrs
Toff time 1sec – 100hrs
Display Power, On and Off led
Connection type Terminal connection
Weight Max. 110 gr.
Contact 5A/250V AC (Resister Load)
Mounting Vertical assembled on the panel (or on the DIN rail)
Operating Altitude <2000m
Cable diameter 1.5 mm²

Dimension

RT6-D10-U Dimension

Device Usage and Working Principle

  • Make the connections according to the diagram.
  • Max.On Time: Sets the stage of “on” and display the maximum “on” time.
  • Max.Off Time: Sets the stage of “off” and display the maximum “off” time.
  • ton: Divides the “on” time by 10 and multiples by displayed value.
  • toff: Divides the “off” time by 10 and multiples by displayed value.
    * Example: Working time(on) is 75minutes, waiting time (off) is 60seconds.
  • Turn on the stage button to 100m and ton button between 7-8. “On” time will be adjusted to 75 minutes.
  • Turn off the stage button to 100s and toff button to 6. “Off” time will be adjusted to 60 seconds.
    * Note: In order to adjust much sensitive higher time values, set “t” by chronometer in low stages and increase the stage to the time required.
    * Example: Working time (on) 7,5 hours and waiting time (off) is 50 minutes.
  • Turn on the “on” stage button to 10s. and “ton” button between 7-8. Power on the device and check for 7.5 seconds with chronometer. If it is high or low, re-set “ton”.
  • Power on and check again. Later, turn on the “on” stage button to 10h, in this case “on” time will be much sensitive.
  • Turn on the “off” stage button to 10s. and “toff” button to 5. Power off the device and check for 5 seconds with chronometer.
    If it is high or low, re-set “toff”. Power on and check again. Later, turn off the “off stage button to 100m, in this case “on” time will be much sensitive.
    After time settings, power on the device. at the beginning, “on” time will count and “on” led will flash. While counting, relay contact out is (NO) 3 pole.
    When the counting finishes, “off” time will start to count and off led flashes. While counting “off” time, relay contact out is (NC) 1 pole.
    Till the power is off, device keeps counting on and off times in turn.

Typical Connection Diagram

RT6-S10-U Wiring Diagram

Maintenance

  • Switch off the device and release from connections.
  • Clean the trunk of device with a swab.
  • Don’t use any conductor or chemical might damage the device.
  • Make sure device works after cleaning.

Warnings

  • Please use the device according to the manual.
  • Don’t use the device in wet.
  • Include a switch and circuit breaker in the assembly.
  • Put the switch and circuit breaker nearby the device, operator can reach easily.
  • Mark the switch and circuit breaker as releasing connection for device.

External description

RT6-D10-U External Description

Resources & Support

Review Relay iLEC RT6-S10-U

Hits: 74

MULTIRANGE ON DELAY TIMER RELAY

Model RT6-S10-U

Introduction

RT6-S10 and RT6M-S10 timer relays are used in all fields (industry, house, plant etc.) need controlls related to the time.

Specifications

PARAMETER VALUE
Operating voltage (Un) AC 150V–260V and AC/DC 24V
Operating frequency 50/60Hz
Operating power <4VA
Operating temperature -20ºC ~ 55ºC
Timer (t) 10sec, 100sec, 10min, 100min, 10hrs, 100hrs
Display On led and Out (RLY ) led
Connection type Terminal connection
Weight Max. 120 gr.
Contact 5A/250V AC (Resister Load)
Mounting Assembled on the DIN rail
Operating Altitude <2000m
Cable diameter 1.5 mm²

Dimension

RT6-S10-U Dimension

Usage of Device and Working Principle

  • Make the connections according to the diagram.
  • Max.Time (Time Steps, TS ): Adjusts the stage and display the max.time.
  • [ t ]: Divides the stage by 10 and multiply with displaying value.
    * Example: Time is 75 minutes.
  • Make stage button to 100m (100 minutes) and turn “t” button between 7-8. In this case time is adjusted to 75 minutes.
    * Note: In order to adjust much sensitive higher time values, set “t” by chronometer in low stages and in crease the stage to the time required.
    * Example: Time is 25 hours.
  • Turn stage button to 10s (10 seconds) and “t” button between 2-3. Make power on and check with a chronometer for 2.5 seconds.
  • Make the stage button 100h(100 hours). In this case, you set it more sensitive.
  • After setting the time, power on the device. Device will start timing and meanwhile led switches on-off.
    When device is timing relay contact 2 shorted to 1.
    When the timing finish (set time is up) relay led is switches on stable and contact 2 shorted to 3.
    Device keeps stable till the power is off.

Typical Connection Diagram

RT6-S10-U Wiring Diagram

Maintenance

  • Switch off the device and release from connections.
  • Clean the trunk of device with a swab.
  • Don’t use any conductor or chemical might damage the device.
  • Make sure device works after cleaning.

Warnings

  • Please use the device according to the manual.
  • Don’t use the device in wet.
  • Include a switch and circuit breaker in the assembly.
  • Put the switch and circuit breaker nearby the device, operator can reach easily.
  • Mark the switch and circuit breaker as releasing connection for device.

External description

RT6-S10-U External Description

Resources & Support

Review Relay iLEC RT6-S10-U

Hits: 88

STAR DELTA RELAY

Model RT6-SD30-U

Introduction

Star Delta Relay is designed to controll three motors in the first run.

Specifications

PARAMETER VALUE
Operating voltage (Un) AC 160V–260V (A1-A2); 24V AC/DC (A1-A3)
Operating frequency 50/60Hz
Operating power <6VA
Operating temperature -20ºC ~ 55ºC
Working (star) 0.1sec. – 30sec.
Waiting (off) 1msec. – 500msec.
Display On led, star led and delta led
Connection type Terminal connection
Weight Max. 110 gr.
Contact 5A/250V AC (Resister Load)
Mounting Assembled on the DIN rail
Operating Altitude <2000m
Cable diameter 2.5 mm²

Dimension

RT6-SD30-U Dimension /

Usage of Device and Working Principle

  • Make the connections according to the diagram.
  • Max.Time (Time Steps, TS ): Adjusts the stage and display the max.time.
  • [ t ]: Divides the stage by 10 and multiply with displaying value.
    * Example: Time is 75 minutes.
  • Make stage button to 100m (100 minutes) and turn “t” button between 7-8. In this case time is adjusted to 75 minutes.
    * Note: In order to adjust much sensitive higher time values, set “t” by chronometer in low stages and in crease the stage to the time required.
    * Example: Time is 25 hours.
  • Turn stage button to 10s (10 seconds) and “t” button between 2-3. Make power on and check with a chronometer for 2.5 seconds.
  • Make the stage button 100h(100 hours). In this case, you set it more sensitive.
  • After setting the time, power on the device. Device will start timing and meanwhile led switches on-off.
    When device is timing relay contact 2 shorted to 1.
    When the timing finish (set time is up) relay led is switches on stable and contact 2 shorted to 3.
    Device keeps stable till the power is off.

Typical Connection Diagram

RT6-SD30-U Wiring Diagram

Maintenance

  • Switch off the device and release from connections.
  • Clean the trunk of device with a swab.
  • Don’t use any conductor or chemical might damage the device.
  • Make sure device works after cleaning.

Warnings

  • Please use the device according to the manual.
  • Don’t use the device in wet.
  • Include a switch and circuit breaker in the assembly.
  • Put the switch and circuit breaker nearby the device, operator can reach easily.
  • Mark the switch and circuit breaker as releasing connection for device.

External description

RT6-SD30-U External Description

Resources & Support

Review Relay iLEC RT6-SD30-U

Hits: 56
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