Honeywell 30112A Potentiometer

The Honeywell 30112A Potentiometer is a critical component for technicians managing Modutrol motor series and relay control systems. This 135 Ohm potentiometer is engineered for seamless integration with the S443A manual potentiometer, providing precise resistance modulation for HVAC industrial automation and commercial boiler applications. Built to withstand demanding boiler room environments, it operates effectively across a temperature range of -18°C to +55°C. With a 20 VA power consumption and a robust SPST on/off switch configuration, this component ensures stable control signal delivery for complex sequences. Whether you are performing a field replacement or a new system calibration, the 30112A delivers the mechanical reliability required for accurate motor speed regulation and positioning. Its compact design facilitates easy installation in standard control panels, maintaining the strict electrical tolerances needed for high-efficiency burner management and HVAC building controls.

• Precise Signal Control: Delivers accurate 135 Ohm resistance for fine-tuned adjustment of Modutrol series motors.
• Industrial Durability: Engineered to maintain reliable operation in high-ambient temperature ranges found in mechanical rooms.
• Broad Compatibility: Specifically designed for Honeywell S443A manual control setups and resistance-based relay systems.
• Low Operating Overhead: Efficient 20 VA power requirement minimizes the load on existing control transformers.

Is the 30112A compatible with all Modutrol IV motors?
The 30112A is primarily utilized as a 135 Ohm resistance control for systems using the S443A manual potentiometer. You should verify your specific motor's input signal requirements—typically those requiring a 135 Ohm controller—to ensure proper interface.

Can this unit be used for voltage adjustment in lighting systems?
While primarily an HVAC component, this 135 Ohm potentiometer is frequently used in industrial applications for general resistance-based control, including certain lighting and motor speed circuits that match its technical specs.

What are the wiring requirements for this potentiometer?
It features a standard SPST on/off switch. Installation typically follows the wiring diagram of the S443A interface or the specific Modutrol motor being controlled.

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.