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Relay Modules (E-MR-5A-8)

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Part Number

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E-MR-5A-8

Drawing/Specifications
Part Numbers
More Information

Product Overview

● The relay module is a device used to receive input signals and output power signals, enabling the opening and closing of circuits.
● The relay module is also known as a terminal relay or relay module.
● It serves as an intermediate relay module for connecting controllers such as PLCs and loads such as solenoid valves.
● The relay module functions as a signal amplifier and isolator in the circuit.

Dimensional Drawing

■ Dimensional drawings

E-MR-5A-4

E-MR-5A-8

■ Wiring diagram

E-MR-5A-4		E-MR-5A-8

Note: Be sure to connect the positive and negative terminals correctly at the input.

■ Accessory dimension diagram

Shorting bar (E-MR-5A-4)

Shorting bar (E-MR-5A-8)

Specification Table

■ Specification table

Model

Length

Width

Height

Number of poles

Weight

Equipped relay

Contact configuration

Mounting method

Terminal screw

Indicator light

Accessories

Certification

Specifications

Tightening torque

E-MR-5A-4

76.4

38.2

32.8

Omron
G5NB-1A-E

1a × 4

DIN rail

0.6 N⋅m

Yes

Shorting bars (2 pieces)

E-MR-5A-8

76.4

38.2

63.6

160

1a × 8

■ Performance parameters (single relay)

Model			E-MR-5A-4/E-MR-5A-8
Input (operating coil)*1	Rated voltage	V	DC24
	Rated current	mA	8.3
	Coil resistance	Ω	2880
	Operating voltage	V	≥ DC18
	Reset voltage	V	≤ DC2.4
	Maximum allowable voltage	V	DC40
	Power	mW	Approx. 200
Output terminal (switch section)	Contact material		Ag alloy
	Rated load voltage	V	AC250/DC30
	Rated load current	A	5
*Contact resistance2**		mΩ	≤ 100
Operating time		ms	≤ 10
Reset time		ms	≤ 10
*Insulation resistance3**		MΩ	≥ 1,000
Service life	Mechanical	10,000 times	≥ 500
	*Electrical4**	10,000 times	≥ 10

Note *1: 1.1. The rated current and coil resistance values refer to the values at a coil temperature of +23°C, with a tolerance of ±10%.
　　　1.2. The operating characteristics refer to the values at a coil temperature of +23°C.
　　　1.3. The maximum allowable voltage refers to the maximum value within the permissible voltage range for the relay coil operating power supply, not the continuous allowable voltage.
　　　1.4. The rated current includes the LED current of the module.
　*2. Measurement conditions: 5 V DC 1 A voltage drop method
*3. Measurement conditions: 500 V DC
*4. Test conditions: rated load, frequency 1800 cycles/h

Product Features

● Uses Omron miniature relays (G5NB-1A-E) with a compact design to save space.
● Uses DIN rail mounting method.
● Each relay has an independent coil and independent contacts for one-to-one control, supporting PLC output (NPN/PNP).
● Includes shorting bars for easy common wiring.
● The actuator coil terminal is equipped with an LED operation indicator, flyback protection, and surge protection.
● The relay uses a pull-release latch for easy maintenance.

Precautions

· The input terminal has polarity; be sure to connect it correctly.
· Before connecting, please confirm the device specifications.
· Do not operate while powered.
· Operating environment: -40°C to +80°C, non-vacuum, non-freezing conditions, 35–85% RH

Installation Method

: 30; 45; 60

Part Number
E-MR-5A-8

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Number of positions	Weight (g)
	MYR 72.16	1 Piece(s)	Available	6 Day(s)	8	160

Brand Introduction

Since its establishment in Japan in 1963, MISUMI Corporation has been committed to providing customers with a wide variety of high-quality parts for FA (Factory Automation), mold components, electronic parts, tools, and consumables quickly and accurately. By independently compiling product catalogs and establishing a direct sales marketing system, we have created a low-cost business model. Each year, we develop product plans based on customer feedback and requests, and continuously develop MISUMI brand products with a high level of quality.

Basic Information

Rated voltage DC(V)	24	Rated current(mA)	8.3	Installation Method	DIN rail
Input-side connector	Terminal block	Output-side connector	Terminal block	Output load voltage(V)	AC250/DC30
Output load current(A)	5	Operation indicator	LED	Terminal screw	M3

Please check the type/dimensions/specifications of the part E-MR-5A-8 in the Relay Modules series.

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Specification/Dimensions

Number of positions
- 4
- 8
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CAD
- 3D
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Days to Ship

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6 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What are the reasons why the contacts do not operate after the relay is energized?: Answer: 1. Excessive voltage applied to the relay coil causes the coil to break. 2. Insufficient voltage applied to the relay coil causes the relay to fail to operate. 3. The voltage applied to the coil does not reach the minimum operating voltage (≥ 18 V DC). 4. Due to operation of heavy load equipment or use of long-distance wiring, the circuit voltage may drop and fail to reach the minimum operating voltage. 5. Due to excessively high ambient temperatures, the resistance of the relay coil increases, causing the operating voltage required to drive the relay to rise. As a result, the originally applied rated voltage is no longer sufficient to operate the relay.
Question: Why do the contacts operate after the relay is energized, but the operation indicator does not light up?: Answer: The leads of the LED may break due to vibration, impact, or similar reasons.

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Part Number
E-MR-5A-4

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Number of positions	Weight (g)
	MYR 43.52	1 Piece(s)	Available	6 Day(s)	4	80

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Relay Modules (E-MR-5A-8)

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