Field-wireable M12 connectors have cage clamp termination

Field-wireable M12 connectors have cage clamp termination

New Products |
By Nick Flaherty

Circular connector specialist binder has developed a series of M12 connectors with cage clamp quick termination to save time in automated assembly lines.

The series 713, 715 and 825 connectors include 4-pin and 5-pin variants, both male and female. Shielded and shieldable products equipped with A, B and D coding are available, covering a large part of the binder M12 portfolio.

Standardized M12 circular connectors are part of the basic equipment in factory and process automation as well as in robotics. They are mainly used for field cabling, for example of sensors and actuators. Depending on the coding, they are suitable for integrating automation components into Ethernet, Profinet, Profibus or CAN networks, for example, and can transmit signals and data as well as supply the field devices with electrical power.

Connectors that can be field assembled by the customer are particularly popular to provide individual, flexible cable lengths or custom cable assemblies. Screw termination is particularly widespread for this as an inexpensive option but it can be a labour-intensive technology.

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Screw terminal connection requires a comparatively time-consuming process: the installer must use a screwdriver to loosen the respective screw, insert the wire and retighten the screw for each contact pin individually in order to clamp the wire.

The growing need for data acquisition devices and data transmission lines is making manageability of the termination technology is becoming increasingly important. Complex installations that require a high throughput during assembly, quick-connection methods can see a significant economic benefit from the cage clamp termination technology which simplifies the process.

Users only need to insert the opening tool into the hole provided to release the spring and guide the wire into the contact hole before pulling out the opening tool, which causes the spring to clamp the wire. The constant spring force permanently acting on the wire establishes contact and ensures a vibration-proof connection that also withstands shock loads. This makes cage clamp termination recommended for applications that are subject to mechanical loads or vibration.

Another advantage is that most of the components of the connectors, such as the sleeve or pressure screw, are identical to those of the products with screw termination for easy interchangeability.

The 713, 715 and 825 series comply with the industry-relevant protection degree IP67 (713: also up to IP68/IP69K in outdoor versions). Their operating temperatures range from -40 °C to +85 °C and the typical mechanical service life is 100 mating cycles.

They are all equipped with screw locking and are optimized with regard to their EMC properties. Versions with shielding rings or iris springs are also available.

The A-coded 713 series is used for signal and power transmission within the CAN, CANopen, Profibus PA (process automation) and DeviceNet protocols. It is designed for rated voltages from 30 V to 250 V and rated currents between 1.5 A and 8 A.

The B-coded 715 series is aimed at Profibus-DP (decentralized peripherals) applications at 60 V to 250 V and 4 A.

The D-coded 825 series was developed for industrial data communication in Ethernet, Ethercat, Profinet and Sercos installations. These products are designed for a rated voltage of 250 V as well as a rated current of 4 A.

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