High contact density despite compact dimensions

Belden presents the world's first Eight-pole M8 Actuator/Sensor Connector range



Belden has extended its Lumberg Automation™ product range with the world's first eight-pole M8 actuator/sensor connectors. These connectors, which fulfill all requirements with respect to shock and vibration resistance, are being offered in two variants with molded cables as well as in three field-attachable installation variants. All variants are designed for a temperature range of between -25 and +80 °C, and, when screwed together with the appropriate counterparts, meet the requirements of protection type IP67.

Owing to the high contact density, up to eight signals can be transmitted with an external power supply, making the new eight-pole M8 actuator/sensor connector especially suitable for connecting optoelectronic sensors or safety switches of the kind used, for example, for monitoring safety doors on machines and systems.


Belden has extended its Lumberg Automation™ product range with eight-pole M8 actuator/sensor connectors. (Photo: Belden, PR174)

The molded connectors, which can be used to connect sensors or actuators to switch cabinets or distribution boxes, have an open cable end, which ensures a high degree of flexibility in terms of the wiring. The male connector (RSM 8-354/0.3 M) has a snap-in/threaded joint and the female connector (RKMV 8-354/2 M) has a self-locking threaded joint, both molded bodies are made of thermoplastic polyurethane (TPU). The cordsets, which are available either in polyvinyl chloride (PVC) or halogen-free polyurethane (PUR), have a cross-section of 0.25 mm2 and a length of 2, 5 or 10 meters. Other materials, cross sections and lengths can be supplied on request.

The receptacle connector RSMF 8/0.5 M with stranded wires and a solder contact potted with epoxy is screwed down on the front side of switch cabinets or other equipment for example. Conversely, the RSMEDG 8, which is designed for example for installation in sensors, can be simply pressed in and connected by means of a snap-in/threaded joint. A plug insert is additionally available with the RSEM 8 for various sensor housings, which already have an M8 thread and/or a snap-in joint. The housing of receptacle connectors are made of nickel-plated brass (RSMF 8/0.5 M and RSMEDG 8) or polyamide (RSEM 8).

Belden has set a further milestone in the area of connection technology with the new eight-pole M8 actuator/sensor connectors in the Lumberg Automation™ product range. According to Project Manager Frank Eilingsfeld: "This is the first time it has been possible to implement this many contacts in an IP67-rated M8 connector, and it will be of benefit to all users who want to process a large number of signals in a confined space under tough environmental conditions. In addition, the product range offers a suitable solution for practically all installation requirements."

About Belden

Belden®: Sending All the Right Signals™

Belden designs, manufactures and markets signal transmission solutions, including cables, connectors and I/O modules, wireless network systems as well as network devices and control, load sensing and load moment limitation systems designed for safety-critical applications ranging from industrial automation to data centers, broadcast studios and the aviation and aerospace industry. The company focuses on segments of the worldwide cable and automation markets that require both highly specialized and readily available products. With manufacturing facilities in North America, Europe and Asia, Belden has recorded a total revenue of USD 1.45 billion for the fiscal year 2009.

Together with its brands Hirschmann™ and Lumberg Automation™ and Trapeze Networks™, Belden offers an extensive and highly specialized product portfolio covering the full range of data communications – from the information and control levels down to the field level. The company has more than 15 offices throughout Europe, the Middle East and Africa, with manufacturing facilities in Czech Republic, Germany, the Netherlands, UK, Denmark, Italy and Hungary.

Contact Information

For more information about eight-pole M8 Actuator/Sensor connectors, please e-mail for product inquiries.