Warrick 26MC1A0 Control

The Warrick 26MC1A0 Control is a professional-grade conductivity-based liquid level control specifically engineered for low water cutoff (LWCO) applications in steam boilers and hydronic systems. Built for the rigorous demands of mechanical rooms, this 120Vac solid-state module utilizes a 26,000 ohm sensitivity to provide precise fluid level monitoring. The direct-acting mode ensures immediate response when conductive probes are exposed, tripping the SPDT relay to protect equipment from dry-fire conditions. Designed as a plug-in module for an 11-pin octal socket, the 26MC1A0 features powered contacts (1 Normally Open/1 Normally Closed) and is UL 353 recognized to meet CSD1 requirements for boiler limit controls. Its compact, enclosure-free design and screw connector socket simplify integration into existing panels, offering a reliable, 10-amp resistive switching solution for HVACR contractors and boiler technicians.

Key Benefits for Technicians:

• CSD1 Compliance: Specifically designed and UL 353 recognized for use as a primary safety low water cutoff in boiler systems.
• Precise Sensitivity: Factory-calibrated to 26K ohms, ideal for standard water conductivity, preventing nuisance trips while ensuring safety.
• Simplified Installation: Standard 11-pin octal plug-in design allows for rapid replacement and maintenance without re-wiring the entire control circuit.
• Durable Construction: Solid-state reliability with a technical operating range of -40°F to 150°F, suitable for demanding mechanical environments.
• Secondary Circuit Safety: Utilizes 12 VAC on the probes to prevent electrolysis and enhance the longevity of your conductivity probes.

Common Questions:

• What is the difference between this and the 26NM series? The 26MC1A0 features powered contacts, whereas the 26NM series provides dry (non-powered) contacts. Always verify your wiring diagram before selecting a module.
• Can this be used for pump control? While the Series 26 handles point-level sensing, it is primarily optimized for safety limits. For complex pump-up or pump-down cycles with differential sensing, the Warrick Series 16 or DF may be better suited.
• Does this include the socket or enclosure? This specific part number is the plug-in module only with a screw connector socket; it does not include an external NEMA enclosure.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.