Phoenix Contact 2906165

The MACX MCR-EX-SL-UI-REL-SP limit value switch offers a reliable solution for monitoring active current and voltage signals through its Ex i input. This device is equipped with a limit-value relay output incorporating a changeover contact, enhancing its versatility in various applications.

Configuration is facilitated through DIP switches and a potentiometer, ensuring flexibility in settings. The switch provides galvanic three-way electrical isolation and achieves safety up to SIL2 (SC3) and PLc Cat.1 standards, making it suitable for demanding industrial environments.

With a nominal supply voltage range of 12 V DC to 24 V DC and a maximum current consumption of 90 mA at 10 V DC, this switch operates efficiently under various conditions. The input specifications include a voltage input signal ranging from 0.1 V to 10 V with a total error of no more than ± 10 mV, and a current input signal from 0.2 mA to 20 mA with a maximum total error of ± 20 µA.

Housed in a durable PA 6.6-FR enclosure with a flammability rating of V0, this switch maintains a degree of protection rated at IP20. It operates effectively in ambient temperatures from -20 °C to 65 °C and can be mounted on DIN rails according to EN 60715 standards. The identification code is [Ex ia Ga] IIC, and it meets various EMC requirements, ensuring optimal performance in electrically noisy environments.