ABB 1SVR550851R9500 CM-ENE MIN 1NO 220-240V AC (Fill)Level Monitoring Relay

The ABB CM-ENE MIN (1SVR550851R9500) is a liquid fill-level monitoring relay from the ABB CM series, designed to detect minimum liquid levels in tanks, reservoirs, and industrial process vessels. Equipped with a 1NO (normally open) output contact and rated for 220–240V AC supply, the CM-ENE MIN provides reliable level detection for use in control panels and automation systems requiring precise fluid-level monitoring.

Technical Specifications

Certifications & Standards

• CE: Complies with European Union directives for electrical equipment safety and electromagnetic compatibility.
• UKCA: UK Conformity Assessed marking for products placed on the Great Britain market.
• UL 508: Listed to UL 508 standard for industrial control equipment (USA).
• cUL: Canadian UL recognition for industrial control equipment, meeting CSA requirements.
• CSA: Certified to Canadian Standards Association requirements for electrical equipment.
• CCC: China Compulsory Certification for electrical products sold in the Chinese market.
• RoHS: Restriction of Hazardous Substances compliant — free from restricted harmful materials.
• REACH: Compliant with EU REACH regulation on chemical substance safety.

Applications & Use Cases

• Minimum liquid level detection in water tanks, storage vessels, and process reservoirs
• Pump protection against dry running by monitoring minimum fill levels
• Industrial automation and control panel integration for fluid management systems
• Building services, HVAC, and water treatment plant level monitoring
• Machine building applications requiring reliable conductive level sensing

Frequently Asked Questions

What does the CM-ENE MIN monitor?

The CM-ENE MIN monitors the minimum liquid level in a tank or vessel using conductive level sensing. When the liquid drops below the set electrode level, the relay output changes state to trigger an alarm or control action.

What is the supply voltage for the CM-ENE MIN?

The ABB CM-ENE MIN relay operates on a 220–240V AC supply voltage.

How many output contacts does the CM-ENE MIN provide?

The CM-ENE MIN provides one normally open (1NO) output contact for integration into your control circuit.

What is the mounting width of the CM-ENE MIN?

The CM-ENE MIN has a width of 22.5 mm, making it suitable for space-efficient DIN rail installation in control panels.