Warrick 16MB1A1 8 Pin NEMA

The Warrick 16MB1A1 is a high-performance Series 16M conductivity liquid level control designed for precise point level sensing. Operating at 120V AC, this 8-pin plug-in controller features a fixed sensitivity of 10K ohms, making it ideal for standard water applications and moderate-conductance liquids. Housed in a NEMA 1 enclosure, this unit facilitates reliable single-level or differential level control in commercial and industrial HVACR systems. The low-voltage secondary monitoring circuit ensures safe operation at the probes while providing high-accuracy switching for pumps, valves, or alarms. Designed for ease of maintenance, the octal plug-in base allows for rapid field replacement without disturbing system wiring. This solid-state control eliminates the mechanical failure points common in float switches, offering a durable solution for boiler feed, condensate return, and sump management applications where liquid level monitoring is mission-critical for system uptime and performance.

Key Performance Benefits

• Internal 10K Ohm Sensitivity: Optimized for municipal water and general-purpose conductivity sensing.
• NEMA 1 Protection: Durable indoor enclosure protects internal solid-state components from debris.
• Field-Serviceable Design: Standard 8-pin NEMA plug-in configuration simplifies installation and troubleshooting.
• Versatile Control Logic: Supports both direct and inverse acting modes for fill or drain applications.
• Increased System Reliability: Solid-state architecture provides chatter-free operation and high vibration resistance.

Common Technical Questions

What probe types are compatible with the Warrick 16MB1A1?
This controller integrates with standard 3H, 3E, and 3W probe holders and 13W stainless steel rods. Ensure the liquid conductance aligns with the 10K ohm sensitivity rating.

Can this unit be used for sewage or highly acidic liquids?
For high-conductance or wastewater applications, we recommend reviewing the chemical compatibility of your probe hardware; however, the 16MB1A1 10K ohm sensitivity is primarily tuned for cleaner water sources.

How do I wire this for a pump-up (fill) application?
Contractors should utilize the Normally Closed (NC) contacts to trigger the pump when the liquid falls below the low-level probe, ensuring specific differential level control is maintained.

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.