Description
The Warrick-Gems Sensors & Controls 16ML1A0 is a general-purpose plug-in liquid level control module engineered for reliable, precise liquid level detection in a wide range of commercial and industrial HVAC and hydronic applications. Designed for easy installation into a standard 8-pin octal socket, this module delivers dependable switching performance without the need for an enclosure, making it an ideal solution for panel-mounted control systems.
How It Works
The 16ML1A0 operates on the principle of conductance-based liquid level sensing. When the liquid level rises to contact the sensing probe, the circuit is completed through the liquid’s conductivity. In Inverse Acting mode, the relay de-energizes when liquid is detected — making this module the right choice for high-level alarm or pump shutoff applications where a loss of signal triggers the control action.
Key Specifications
- Sensing Resistance: 10,000 ohm (10K Ω)
- Mode of Operation: Inverse Acting
- Supply Voltage: 120Vac
- Relay Output: SPDT — 1 Normally Open (NO) / 1 Normally Closed (NC) contact
- Socket Style: 8-Pin Octal Plug-In
- Module Type: General Purpose Plug-In
- Enclosure: None (panel or socket mount)
Features & Benefits
- Inverse acting operation ideal for high-level shutoff and overflow protection
- SPDT relay output provides both normally open and normally closed switching flexibility
- 8-pin octal socket style allows for fast, tool-free installation and replacement
- 10,000 ohm sensing threshold suitable for a broad range of liquid types
- Plug-in module design simplifies field replacement and maintenance
- No enclosure required — mounts directly into existing control panel sockets
- 120Vac supply voltage compatible with standard commercial power systems
Typical Applications
- Boiler and hydronic system high-water level protection
- Condensate sump and drain pan overflow detection
- Cooling tower and reservoir level control
- Industrial tank and vessel level monitoring
- Pump control and shutoff circuits
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