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MURRELEKTRONIK M8

Murrelektronik is a German manufacturer of industrial automation components, founded in 1975 and headquartered in Oppenweiler, Germany. The company produces power supplies, interfaces, IO systems, and connection technology. Its M8 product line falls under the connection technology category, specifically passive sensor junction blocks (also called distribution blocks) that consolidate multiple sensor signals into a single connection point. These blocks are part of the EXACT8 series, which is designed for M8 sensor connectivity in machinery and plant engineering. The M8 connector itself is a metric 8 mm threaded interface standardised under IEC 61076-2-104, commonly used for proximity sensors, photoelectric sensors, and other small form-factor devices. Murrelektronik's M8 junction blocks are available in configurations with or without a homerun cable, with port counts typically ranging from 4 to 10, and with 3-pole female connectors. Housing materials are plastic, and ingress protection ratings include IP65 and IP67, making them suitable for washdown and dusty environments when properly mated. Current ratings per port are typically 2 A, which aligns with the low-power nature of sensor circuits. 3G Electric supplies Murrelektronik M8 sensor junction blocks as part of its global industrial equipment catalogue. The product range includes passive blocks without homerun cable, such as the EXACT8 models with 8 or 10 ports, and passive blocks with homerun cable, such as the 8-port version with a 5-meter gray PUR/PVC cable. These blocks are used to reduce wiring complexity by aggregating multiple sensor outputs into a single cable run to the control cabinet. 3G Electric maintains inventory of multiple SKUs and provides logistics support for international orders. Technical buyers can compare specifications such as port count, cable length, IP rating, and current rating per port to select the appropriate block for their application. The blocks are compatible with standard M8 3-pole cordsets and are typically mounted directly on machine frames or in field junction boxes. Because they are passive devices, they do not require power and simply pass signals through from the sensors to the control system. This makes them a straightforward solution for retrofits or new installations where sensor density is high and individual home runs would be impractical. 3G Electric's catalogue includes Murrelektronik M8 blocks with plastic housings, which offer resistance to corrosion and are lightweight. The IP65 and IP67 ratings indicate protection against dust and water ingress, with IP67 allowing temporary immersion. These ratings are achieved when the connectors are properly tightened to the specified torque. The operating temperature range for these blocks is typically -25°C to +80°C, though this can vary by specific model. Buyers should verify the exact temperature range and chemical compatibility of the plastic housing with their cleaning agents. 3G Electric provides access to these products with global shipping and support for procurement teams. The company does not manufacture these blocks; it distributes them as part of its portfolio of industrial automation components. For detailed technical drawings, approvals, and compliance documents, buyers should refer to the original manufacturer's documentation. 3G Electric can assist with part number cross-referencing and availability checks.

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About MURRELEKTRONIK M8

Murrelektronik is a German manufacturer of industrial automation components, founded in 1975 and headquartered in Oppenweiler, Germany. The company produces power supplies, interfaces, IO systems, and connection technology. Its M8 product line falls under the connection technology category, specifically passive sensor junction blocks (also called distribution blocks) that consolidate multiple sensor signals into a single connection point. These blocks are part of the EXACT8 series, which is designed for M8 sensor connectivity in machinery and plant engineering. The M8 connector itself is a metric 8 mm threaded interface standardised under IEC 61076-2-104, commonly used for proximity sensors, photoelectric sensors, and other small form-factor devices. Murrelektronik's M8 junction blocks are available in configurations with or without a homerun cable, with port counts typically ranging from 4 to 10, and with 3-pole female connectors. Housing materials are plastic, and ingress protection ratings include IP65 and IP67, making them suitable for washdown and dusty environments when properly mated. Current ratings per port are typically 2 A, which aligns with the low-power nature of sensor circuits. 3G Electric supplies Murrelektronik M8 sensor junction blocks as part of its global industrial equipment catalogue. The product range includes passive blocks without homerun cable, such as the EXACT8 models with 8 or 10 ports, and passive blocks with homerun cable, such as the 8-port version with a 5-meter gray PUR/PVC cable. These blocks are used to reduce wiring complexity by aggregating multiple sensor outputs into a single cable run to the control cabinet. 3G Electric maintains inventory of multiple SKUs and provides logistics support for international orders. Technical buyers can compare specifications such as port count, cable length, IP rating, and current rating per port to select the appropriate block for their application. The blocks are compatible with standard M8 3-pole cordsets and are typically mounted directly on machine frames or in field junction boxes. Because they are passive devices, they do not require power and simply pass signals through from the sensors to the control system. This makes them a straightforward solution for retrofits or new installations where sensor density is high and individual home runs would be impractical. 3G Electric's catalogue includes Murrelektronik M8 blocks with plastic housings, which offer resistance to corrosion and are lightweight. The IP65 and IP67 ratings indicate protection against dust and water ingress, with IP67 allowing temporary immersion. These ratings are achieved when the connectors are properly tightened to the specified torque. The operating temperature range for these blocks is typically -25°C to +80°C, though this can vary by specific model. Buyers should verify the exact temperature range and chemical compatibility of the plastic housing with their cleaning agents. 3G Electric provides access to these products with global shipping and support for procurement teams. The company does not manufacture these blocks; it distributes them as part of its portfolio of industrial automation components. For detailed technical drawings, approvals, and compliance documents, buyers should refer to the original manufacturer's documentation. 3G Electric can assist with part number cross-referencing and availability checks.

Common Applications

  • Automotive assembly lines — Murrelektronik EXACT8 8-port M8 junction blocks consolidate proximity sensor signals on conveyor modules.
  • Packaging machinery — 10-port M8 passive blocks without homerun cable reduce wiring for photoelectric sensors on cartoners.
  • Material handling systems — IP67-rated M8 distribution blocks with 3-pole connectors link sensors on sortation conveyors.
  • Machine tool enclosures — 8-port M8 junction blocks with 5 m homerun cable simplify sensor connections in control cabinets.
  • Food and beverage processing — IP65 M8 blocks with plastic housings connect sensors in washdown areas when properly mated.
  • Robotic work cells — M8 passive junction blocks aggregate end-of-arm tooling sensor signals to a single cable run.

Frequently asked questions

Common questions about MURRELEKTRONIK M8 from 3G Electric.

What is the difference between Murrelektronik M8 junction blocks with and without a homerun cable?

Murrelektronik M8 passive sensor junction blocks are available in two main configurations: with a homerun cable and without. Blocks without a homerun cable have a connector on the trunk side, allowing you to attach a separate cable of your chosen length. Blocks with a homerun cable come with a pre-attached cable, such as the 5-meter gray PUR/PVC cable on the 8-port EXACT8 model. The choice depends on installation preferences: pre-cabled versions simplify ordering and reduce assembly time, while non-cabled versions offer flexibility to route and replace cables independently. Both types consolidate multiple M8 sensor signals into a single connection point.

What are the IP ratings available for Murrelektronik M8 distribution blocks?

Murrelektronik M8 passive sensor junction blocks are offered with IP65 or IP67 ratings, depending on the specific model. For example, the 8-port EXACT8 block with homerun cable (SKU 852UD8) is rated IP65, while the 10-port version without homerun cable (SKU 852U98) is rated IP67. IP65 indicates protection against dust and water jets, while IP67 adds protection against temporary immersion. These ratings are valid only when all connectors are properly mated and tightened. The plastic housing material contributes to the ingress protection and also provides resistance to common industrial chemicals.

How many ports are available on Murrelektronik M8 sensor junction blocks?

Murrelektronik M8 passive sensor junction blocks are available with various port counts, typically ranging from 4 to 10 ports. In the EXACT8 series, common configurations include 8-port and 10-port versions. For instance, SKU 852U98 has 10 ports, while SKU 852UE3 and SKU 852UD7 have 8 ports. All ports use 3-pole M8 female connectors. The port count determines how many sensors can be connected to a single block. When selecting a block, consider the number of sensors in the area and the current rating per port, which is typically 2 A for these passive blocks.

What is the current rating per port for Murrelektronik M8 junction blocks?

The current rating per port for Murrelektronik M8 passive sensor junction blocks is typically 2 A, as seen on SKU 852UD7. This rating is suitable for most industrial sensors, which draw well below this value. However, it is important to verify the total current sum across all ports does not exceed the rating of the homerun cable or connector. For blocks without a homerun cable, the current carrying capacity depends on the attached cable. Always refer to the manufacturer's datasheet for the specific model to confirm the maximum current per port and total current.

Are Murrelektronik M8 junction blocks compatible with standard M8 cordsets?

Yes, Murrelektronik M8 passive sensor junction blocks use standard 3-pole M8 female connectors, which are compatible with any standard 3-pole M8 male cordset. This includes cordsets from Murrelektronik and other manufacturers that meet the IEC 61076-2-104 standard. The connectors are threaded and require proper tightening to achieve the specified IP rating. When selecting cordsets, ensure they are rated for the environmental conditions and current requirements of your application. The use of standard connectors allows for flexibility in sourcing and replacement.

What housing material is used for Murrelektronik M8 distribution blocks?

Murrelektronik M8 passive sensor junction blocks feature plastic housings. This material is lightweight, corrosion-resistant, and suitable for many industrial environments. The plastic housing contributes to the IP65 or IP67 rating when properly assembled. It is important to check chemical compatibility with any cleaning agents or fluids present in the application. The housing also provides electrical insulation. For high-temperature or harsh chemical environments, alternative materials may be required, but for typical factory automation, the plastic housing is adequate. Always refer to the manufacturer's specifications for detailed material properties.