Murrelektronik Automation Solution Complete Solution

Murrelektronik Automated Connection Solution

Murrelektronik, founded in 1975 and headquartered in Oberwehr, Germany, is a family owned enterprise with over 2700 employees and 26 branches and 5 production bases worldwide. The company has always focused on connection technology in the field of industrial automation, with products covering four major areas: electronic equipment inside control cabinets, interface technology, connection technology, and I/O systems. With over 65000 products available for ordering, Murrelektronik provides complete solutions for industries such as machine tools, mechanical manufacturing and systems engineering, assembly and handling technology, food and beverage, automotive, warehousing and logistics, and robotics. Its core concept is' connectivity+ivity ' ®” Represents creating a competitive advantage for customers through optimal consulting, budget reduction, optimized system installation, and one-stop supply. This article will provide a comprehensive and professional technical analysis of Murrelektronik's product ecosystem from four technical dimensions.

Chapter 1: Electronic Equipment in Control Cabinets - Reliable Energy and Signal Management

The control cabinet is the nerve center of the automation system, and Murrelektronik provides a complete product line from transformers, power supplies, UPS to intelligent distribution, EMC filters, and relays.

1.1 Transformer and rectifier power supply

MTS, MST, MET, MTL and other series of transformers meet global market certification, with isolation levels reaching T 40/B or T 60/B. The input voltage covers single-phase 230/400 V AC and three-phase 208-550 V AC, and the output can provide various combinations such as 24 V AC, 230 V AC or 2 × 24 V AC. Rectified power supplies (such as the MEN series) convert AC power to 24 V DC (SELV), with a maximum ripple of 5% rms, and integrate LED, varistor, and smoothing capacitor. These products are installed using long holes or DIN rails, with a working temperature range of -20 to+60 ° C. Some models have obtained certification from the German Lloyd's Register (GL).

1.2 Switching Power Supply - Emparro ® series

The Emparro series switching power supplies have become the market benchmark with their excellent performance of up to 96% efficiency and 150% power boost lasting for 4 seconds. Compared to conventional power sources, Emparro significantly reduces heat generation, thereby extending the lifespan of adjacent components. This series offers single-phase and three-phase input versions, with an output voltage of 24 V DC (adjustable 22-28 V) and output currents ranging from 5 A to 40 A. It also has short-circuit and overload protection, alarm contacts (such as the Evolution+series), and push in spring terminals. Among them, the three-phase version, such as the MPL series, has a wide input voltage range of 3 × 208-520 V AC and can operate at full load in an environment of -20 to+55 ° C, with an efficiency of over 92%.

1.3 UPS、 Buffer module and redundant module

Murrelektronik offers two technical routes to address the risk of power outages:

UPS module Emparro ACCUcontrol: with an external lead-acid battery, it can achieve several hours of power down buffering, suitable for critical processes that require long-term production maintenance.

Buffer module MB Cap: Based on maintenance free supercapacitors, it can buffer for 0.2 seconds at 20 A full load and 4 seconds at 1 A light load, which is sufficient to support the control system to complete data storage and orderly shutdown.

Redundant modules such as MB Redundancy Balance use automatic balancing (50/50) technology to combine two 20 A power supplies into one 40 A output, and have a single channel alarm output. The simpler diode redundancy module MB Diode uses Schottky diodes to achieve 2 × 20 A input and 1 × 40 A output, with a voltage drop of only about 0.5 V.

1.4 Intelligent Power Distribution - MICO Series

In traditional 24V DC systems, due to circuit resistance limitations, the short-circuit current is often insufficient to trigger a regular C-type circuit breaker (requiring 14 times the rated current). Murrelektronik's MICO intelligent overcurrent protection module solves this problem through a patented trip feature. The MICO+series (such as 4.4, 4.6, 4.10) offers 4 channels, and the current threshold of each channel can be set through a concave rotary switch (1-10 A), with a 90% rated current warning function. When a channel is overloaded or short circuited, only that channel is turned off, and the other channels continue to operate, greatly improving system availability. The module also provides remote ON/OFF control, group alarm and early warning output, and supports bridging on both sides to expand input current. The MICO BASIC series is an economical choice for fixed currents (such as 5 × 2A+3 × 6A).

1.5 EMC filter

To meet electromagnetic compatibility standards, Murrelektronik offers single-phase and three-phase EMC filters:

Single phase MEF 1/1 (primary): 85-265 V AC/DC, 20 A, push in terminal.

Single phase MEF 1/2 (Level 2): Suitable for high-frequency interference sources such as switching power supplies and phase angle controllers, with symmetrical and asymmetrical interference suppression.

Three phase MEF 3/1 N (with neutral wire): maximum 4 × 440 V AC, 3-20 A.

Three phase MEF 3/1 and MEF 3/2 (book type): maximum 3 × 600 V AC, current 8-180 A, suitable for frequency converters and switching power supplies.

The filter should be installed as close as possible to the incoming point of the control cabinet, and the grounding strip should be short and have low impedance.

1.6 Relays and Safety Relays

Murrelektronik offers over 600 active interface modules. The MIRO 6.2 series terminal relay has a width of only 6.2 mm, with a bridging system, coil voltage ranging from 6 V to 230 V AC/DC, contact capacity of 6 A (AC-12), and LED indication. The RMM series relays use screw terminals and provide various contact forms such as 1 NO, 1 NC, 2 NO/NC, with a maximum switching voltage of 250 V AC/300 V DC.

MIRO SAFE+safety relays are designed for applications such as emergency stop, protective doors, dual hand control, light curtains, and safety magnetic switches, with a maximum performance level of e (PLe) and a safety integrity level of SIL 3. For example, model 3000-33113-3020025 has 3 safety contacts (8 A), an input voltage of 24 V DC/AC, and a service life of 20 years. The expansion module can increase the number of safety contacts to 4 NO.

1.7 Optocouplers and Semiconductor Switches

The optocoupler module has no mechanical contacts and is suitable for high-frequency switches and long-life applications. MIRO 6.2 optocoupler provides transistor output (6 A, switching time 15/31 μ s) or three terminal bidirectional thyristor output (4 A, zero potential switch). The AMMS/AMMD series uses screw terminals with dual terminal output sides for easy parallel wiring.

1.8 Active and Passive Interface Technology

The active interface module is used to convert measured values (such as 0-20 mA, 4-20 mA, 0-10 V) into digital signals or standard analog signals, and achieve electrical isolation. The passive interface module provides SUB-D connectors, flat cable connectors, etc. for signal distribution inside the control cabinet.

Chapter 2: Interface Technology - Flexible Connection from Panel to Field

2.1 Front panel interface - Modlink MSDD

The Modlink MSDD series provides front-end interfaces with IP65 protection level for control cabinets and operation panels. Its modular design includes plastic or metal mounting frames (1 or 2 positions), various power sockets, and data inserts. The power sockets cover national standards such as Germany (VDE, white/yellow), France (UTE), the United States (NEMA 5-15/GFCI), the United Kingdom (BS), Italy, Denmark, Switzerland, Australia, India, China, Brazil, etc. The rated current is 10-16A and the voltage is 125-250 V AC. Data inserts include RJ45 (CAT5e/CAT6A), USB (Type A), SUB-D9/15/25, DVI, BNC, etc. The combination insert can provide both power and data interfaces, such as the "German socket+RJ45+USB" kit. All modules support 3mm dual key or Daimler specific locking method.

2.2 Control Cabinet Interface and Cable Entry System - Modlink MPV

Modlink MPV is a modular cable entry system that allows pre installed M12, RJ45, 7/8 ", fiber optic, and other connectors to pass through the control cabinet wall without the need for on-site wiring. The frame is available in single port (35 × 52 mm) and double port (35 × 112 mm) options, with a protection level of IP65. The insert includes:

M12 (5-pin A/B encoding, 6-pin Cube67, 8-pin)

M12+SUB-D9 combination

7/8 "spring terminal

RJ45 metal type (CAT6)

blind flange

In addition, adapters for AS Interface cables and various sizes of cable glands (cable diameter 3-31 mm) are also provided, as well as pre assembled M12 control cabinet entrance systems.

2.3 Hybrid fieldbus coupling

The active hybrid fieldbus coupler integrates repeater and control cabinet interface functions, and has the following characteristics:

PROFIBUS FMS/DP electrical isolation

Three independent PROFIBUS ports, each port electrically isolated

Automatic baud rate detection (switchable during runtime)

Each PROFIBUS segment can cascade up to 31 modules

Integrated terminal resistor

Segment length: 200 m at 1.5 Mbit/s, 100 m at 12 Mbit/s

Passive couplers only provide pure through connections.

2.4 Lighting Components - Modlight Series

The Modlight Pro signal tower (diameter 50/70 mm) uses LED modules with color options of red, yellow, green, blue, and white. It can be quickly assembled through a bayonet lock, and the base supports ground installation, tube installation, or M12 connection. Modlight30 (30 mm) is a compact model. Comlight57 is a 57 mm single light status indicator. Modlight Illuminix machine lights are divided into:

Slim Line：IP54， Power range of 4 to 32 W, M8 connection, expandable (C series).

Classic Line：IP67， Power 6-24 W, M12 connection.

Xtreme：IP69K，27 W， Suitable for high-pressure flushing environment.

All LED lights are of daylight quality and have a long lifespan without maintenance.

2.5 Control Equipment - Emergency Stop and Reset Buttons

Murrelektronik offers emergency stop and reset buttons with M12 pre wired connections, with a diameter of 42 mm or 72 mm. The emergency stop button has 2 forward disconnect NC contacts and can be optionally equipped with a protective cover (72P). The reset button can be equipped with 1 or 2 NO contacts, and can be optionally illuminated with an LED ring. There are 4-pin, 5-pin, or 8-pin M12 connection methods to achieve plug and play and avoid wiring errors.

2.6 Modular Connection System - Modlink Vario

Modlink Vario is a pneumatic, fluid, and electrical hybrid coupler that can connect multiple media simultaneously without dripping. There are two types of substrates: circular (4/6/8/10) and rectangular (8), made of aluminum or stainless steel (V4A). The insert includes:

Pneumatic: AD4/6/8 (with or without shut-off valve, non drip type)

Electrical: M12 (5/4/6/8 pins, A/B/D code)

The mobile side and fixed side can be combined arbitrarily. This system can be disassembled and assembled without tools, making it very suitable for quick tool replacement and wall penetration of switchgear.

2.7 Heavy Duty Connector - Modlink Heavy

The Modlink Heavy series offers a variety of housing types (B6, B10, B16, B24), with locking methods including single locking rod and double locking rod. The output direction includes straight head and side head, with thread sizes ranging from M20 to M32. Protection level IP65. Insert cores are divided into:

Fixed plug: E series, 6/10/16/24 pin, push in terminal.

Modular plug: Assemble various functional modules through a framework (2/3/4/6 modules), including:

1-pin module: 1000 V/200 A (axial screw)

2-pin module: 1000 V/40/70/100 A

3-pin module: 690 V/40 A (crimping)

4-pin module: 830 V/40 A

5-pin module: 400 V/16 A (push in type)

6/8/12/17/20 pin module: 16 A or 10 A

Ethernet module: CAT6A (RJ45)

Pneumatic module: 2-pin (inner diameter 6 mm) or 3-pin (inner diameter 1.6/3/4 mm)

The module supports crimping, push in or axial screw connections, suitable for high current, signal and data transmission.

Chapter 3: Connection Technology - Reliable Link from Sensor to Controller

Murrelektronik offers a comprehensive range of circular connectors, fieldbus connectors, and valve connectors, all of which undergo 100% electrical testing, high-voltage testing, performance testing, pin assignment testing, short circuit testing, and visual inspection. The contacts are gold-plated and the protection level is typically IP67.

3.1 Standard circular connector

M8: 3-pin or 4-pin, straight or 90 °, with/without LED, shielded/unshielded, rated voltage 50 V AC/60 V DC, current 4 A. Made of PUR or PVC sheath, resistant to oil and chemical corrosion, suitable for C-type drag chains (up to 5 million bends).

M12: Available in 3, 4, 5, 8, and 12 pin versions, straight head/90 °, with LED, shielded/unshielded. The maximum rated voltage is 250 V AC/DC, and the current is 4 A (2 A for 8 pins). Encoding includes A (sensors/actuators), B (PROFIBUS), D (Ethernet), X (Gigabit), Y (hybrid), L/K/S/T (power supply), etc.

7/8 ": 5-pin, used for power supply, current 8-10 A, voltage 300 V AC/DC.

M23: 12 or 19 pins, used for signal and power supply, IP67， Suitable for distributed I/O boxes.

3.2 Fieldbus connectors

Supports PROFIBUS (B-encoding, 2-pin masking), DeviceNet/CANopen (A-encoding, 5-pin), Ethernet/EtherCAT/PROFINET (D-encoding, 4-pin or X-encoding, 8-pin), Cube67 (6-pin), AS Interface (2-pin), etc. Provide pre cast cables and on-site connectable (IDC or screw terminal) versions. RJ45 connectors have multiple directions such as straight head, 45 °, and 90 °, and some use push pull locking, which complies with AIDA standards, IP65/67。

3.3 Special connectors for the food and beverage industry

The M12 F&B Pro series is made of PP material and stainless steel 1.4404 (V4A) screws, with a protection level of IP65/IP68/IP69K and a working temperature of -40 to+105 ° C. The cable sheath is TPE-S (light blue) and resistant to cleaning agents (Ecolab). Provide 3, 4, and 5 needles, straight head/90 °, with LED optional. The M12 Steel series also uses stainless steel, with a permanent IP69K rating, suitable for high-pressure flushing areas.

3.4 Mobile Application Connector

For the fields of construction machinery and mobile hydraulics, Murrelektronik offers:

AMP Junior Power Timer: 2-pin, with LED and/or varistor, straight head/90 °.

Deutsch MDC: compatible with Deutsch DT series, 2/3/4/6 needles, IP68。

SuperSeal MSC1.5: compatible with AMP SuperSeal 1.5, 2/3/4/6 needles, IP67。

All products are equipped with PUR sheath and vibration resistant design.

3.5 Valve Connector - MSUD Series

Compliant with EN 175301-803 (formerly DIN 43650) standard, providing specifications such as Type A (18 mm needle pitch), Type B (10 mm), Type C (8 mm), BI (11 mm), CI (9.4 mm), etc. Integrated LED status indication and suppression circuit (RC, VDR, Z diode). Working voltage: 24 V AC/DC, 110 V AC/DC, 230 V AC/DC. Pre cast cables (PVC/PUR) or on-site wiring (screw terminals/IDC) are available. The dual valve plug is used to connect two valves simultaneously. It can be converted to an M12 connector through an adapter.

3.6 T-shaped distributor

Provide M8, M12, 7/8 "T-shaped distributors for parallel or series connection of sensors/actuators. The SlimLine series has an extremely narrow width, making it suitable for space constrained situations. The industrial Ethernet T-type distributor supports CAT5100 Mbit/s full duplex.

Chapter 4: I/O System - The Complete Family of Distributed Intelligence

Murrelektronik's I/O system covers various requirements from IP20 control cabinet installation to IP69K on-site installation.

4.1 Cube67- Modular IP67 I/O Station

Cube67 uses a system bus cable to simultaneously transmit data and power, reducing installation space and time by half. The bus node supports PROFIBUS DP, PROFINET IO, EtherNet/IP, EtherCAT, and can connect up to 32 modules. Cube67+Enhanced supports IO Link Master, with up to 128 IO Link ports and Machine Option Management functionality. The diagnostic gateway can quickly locate faults through Ethernet TCP/IP. The I/O module includes:

Digital input: DI16 (8 × M12), DI8 (4 × M12 or 8 × M8), optional PNP/NPN.

Multi functional DIO: Each channel can be parameterized as an input, diagnostic input, or output, with an output current of 0.5 A/1.6 A.

Analog input/output: voltage/current/thermistor/thermocouple, 15 bits+symbol, accuracy ± 0.5%.

Safe output: DO6/DO6 (6 × M12, K3), can be turned off by an external safety relay and can reach PL d.

Functional modules: Counter (300 kHz), RS232/485 communication (MOVIMOT) ®）、 IO Link Master (4-port, Class A+B）。

Sanitary module: IP69K, used in the food and beverage industry.

Valve connection module: Pre cast cable (SUB-D or AMP connector), used for FESTO, SMC, MAC and other brand valve islands.

4.2 Cube20- IP20 Control Cabinet I/O

Cube20 adopts DIN rail installation, with high channel density. Bus nodes (PROFIBUS, PROFINET, EtherNet/IP) come with 8 digital inputs and can expand up to 15 modules. I/O modules include DI32, DO32, DIO16, AI4 (voltage/current/thermistor/thermocouple), AO4, etc. The interface module (BN-67 DIO8) with Cube67 can use Cube20 as a subsystem of Cube67.

4.3 Cube20S - Ultra Thin High Speed I/O

The width is only 12.9 mm, and each bus node can carry up to 64 modules with a response time as low as 20 µ s. Supports PROFIBUS、PROFINET、EtherNet/IP、EtherCAT、CANopen、Modbus TCP。 The security modules (FDI4/2, FDO4/2) can achieve PL e and SIL 3. Provide 2/4/8 channels of digital input/output (output 0.5 A or 2 A, relay output 3 A/230 V AC), as well as 2/4 channels of analog input/output (accuracy ± 0.2%).

4.4 MVK Metal - Compact I/O with Metal Shell

The MVK Metal series features a sturdy metal casing that is resistant to vibration, media, and welding spatter. support PROFIBUS、PROFINET IRT（Conformance Class C，Fast Start Up <500 ms）、EtherNet/IP。 Key Features:

Multi functional I/O: Each M12 port can be configured as an input or output (1.6 A).

Diagnosis: Only the faulty port is turned off, and detailed diagnostic information is sent through LED and bus.

Safety: The MVK-MPNIO Safety module (such as DI16/8 F) supports PL e, SIL 3, and integrates safety inputs and outputs.

IO Link: DIO12 IOL4 and other models integrate a 4-port IO Link Master (Class A+B).

Wireless: The MIRO BT Bluetooth module can achieve wireless transmission of PROFINET, covering 100 meters indoors and 300 meters outdoors.

Push pull connectors: Some models use push pull power and data interfaces for quick plugging and unplugging.

4.5 SOLID67- Multi Protocol I/O Module

SOLID67 is a new generation compact I/O module with a width of 30mm or 60mm, IP67 protection, operating temperature of -20~+70 ° C, and impact resistance of 15G/50G. Supports multiple protocols (PROFINET IRT and EtherNet/IP DLR can automatically switch). The IOL8 model offers 8 IO Link Master ports, including 4 Class B ports (with auxiliary power supply, maximum 2A/port), which can simultaneously connect smart sensors and actuators. All ports can be individually parameterized as inputs or outputs. Integrating a web server facilitates diagnosis.

4.6 Impact67- Economical Distributed I/O

The Impact67 series is designed for basic applications and offers versions such as PROFIBUS, PROFINET, EtherNet/IP, EtherCAT, CANopen, and DeviceNet. Basic diagnosis is indicated by LED, and extended diagnosis (such as DIO16 IRT) supports channel level shutdown. IO Link models (DIO14 IOL2, DIO12 IOL4) can connect to smart devices. The output current can reach 2 A.

4.7 IO Link devices

IO Link Analog Converter: M12 interface, connects standard analog sensors (0/4-20 mA, 0-10 V, -10~+10 V) to the IO Link main station, 16 bit data, accuracy of 0.1%, IP65/67。

IO Link Hub: Convert 8 digital signals (DI8 or DI8/DO8) into IO Link communication, providing rich diagnostic information.

IO Link Inductive Coupling: Non contact transmission of energy and bidirectional IO Link data, with a gap of 0-7 mm, suitable for rotating workbenches or frequent plugging and unplugging occasions.

4.8 MASI - AS Interface System

The MASI series covers AS Interface solutions from IP00 to IP68:

MASI control cabinet: The gateway supports PROFIBUS, PROFINET, EtherNet/IP, CC Link, EtherCAT, with a maximum of 62 slave stations for a single master station and 124 slave stations for a dual master station. The I/O modules (MASI00, MASI20) have IDC or spring terminals, and some have safety outputs (K3, up to PL d). The power supply is a 30.5 V DC dedicated switching power supply.

MASI on-site installation: MASI65 (valve plug), MASI67 (M8/M12), MASI68 (M8/M12, IP68) and other modules can be directly installed on site.

MASI installation technology: provides AS Interface flat cables, distributors, T-heads, terminal resistors, coding components, and other accessories.

4.9 M8/M12 Distribution System

Exact8: M8 distribution box, width 30mm, 4/6/8/10 channels, optional PNP/NPN, with LED. Pre cast PUR/PVC cables (3-15m) or M12 (8/12 pin) plugs can be selected for connection. The connection cover can be wired on site.

Exact12: M12 distribution box, 4/8 channels, 4 or 5 pins, with/without LED, IP65/67 protection. Optional pre cast cable, M12 plug, M23 plug (12/19 pin). The UNIVERSAL model allows for free configuration of pins. The Safety type complies with EN ISO 13849-2 and is used for safety circuits.

MVP12 Metal: Metal shell M12 distribution box, 4/8 channels, resistant to mechanical and thermal stress. Optional shielded cable and M23 plug. UNIVERSAL type can freely allocate signals.