Dold Liquid Level Relay DIN Rail Mount 1 Input 10V AC Probe Voltage 240V AC Supply MK9151.11 2-450kOhm AC220-240V

Dold MK9151.11 2-450kOhm AC220-240V MK 9151N Series liquid level relay is a DIN rail mount device with a single voltage input and 5 relay outputs designed to monitor and control conductive liquids and powders. It operates with a 240V AC supply voltage and 10V AC probe voltage, making it suitable for precise level control and protective applications.

This level relay supports 2-point and 1-point level control via its 3-probe connections and features a wide adjustable response and release time delay ranging from 0.2 seconds to 20 seconds. The measuring circuit is highly resistant to interference and electrically isolated from the mains for safe operation. The device allows a maximum probe wire length of up to 1500m and a large setting range between 2kohm and 450kohm enabling differentiation between fluid and foam.

The relay includes green LED indication for operation and yellow LED indication for contact position. It has a clamp terminal for easy and secure installation on DIN rails. The device is IP20 rated and measures 82mm in length, 22.5mm in width, and 99mm in depth. It is designed for various industrial applications such as wastewater management, monitoring of corrosive liquid media, pump protection against dry running, leak detection in liquid systems, media mixing ratio control, and general resistance monitoring including temperature detection with PTC sensors.

This Liquid Level Relay complies with IEC/EN 60255, DIN VDE 0435-303, IEC/EN 61140, IEC/EN 60947-1 standards, and carries CE marking. Made in Germany, it represents a robust and reliable solution for industrial liquid level control requirements.

Operates on supply voltage 220V to 240V AC and 10V AC probe voltage. Features adjustable delay times between 0.2 seconds and 20 seconds. Designed for DIN rail mounting with clamp terminal connections. IP20 rated with CE compliance and suitable for industrial use.

High interference resistance with isolated measuring circuit. Supports up to 1500m maximum wire length to probes. Large setting range of 2kohm to 450kohm for fluid and foam differentiation. Five relay outputs rated at 5A current for versatile applications.

Applications include wastewater management, pump protection, leak detection, and resistance monitoring. Explore more industrial measuring and testing instruments at EnvMart.