Overview
The Allen-Bradley 56S-1 Type J is a hot-molded carbon track potentiometer designed for demanding industrial automation and control applications. The Type J potentiometers are rated at 2.25 Watts with a life cycle manufactured to exceed 100,000 cycles. This single-turn unit provides precise and repeatable resistance control across a broad range of electrical systems, from process control to instrumentation feedback.
Key Features
- 2.25 Watt power rating for high-reliability industrial applications
- Life cycle exceeds 100,000 cycles, ensuring long operational life
- Standard shaft diameter of 0.250 inches with adjustable length options
- Exceedingly low noise factor makes it suitable for precision control
- Hot solder dipped terminals for easy soldering
- Rated to work up to 500 Volts with resistance values ranging from 50 Ohm through 2.5 Meg Ohm
Technical Specifications
The 56S-1 delivers consistent performance in industrial control circuits. Type J is a 2 Watt control featuring sealed construction to prevent contamination.
Typical Applications
- Process control feedback and adjustment
- Equipment calibration and tuning
- Industrial automation reference circuits
- Panel-mount operator controls
- Instrumentation potentiometer circuits
- Legacy equipment maintenance and replacement
Compatibility & Replacements
Compatible With
- Industrial PLC control systems requiring potentiometer input
- Allen-Bradley control panels and enclosures
- Process instrumentation and sensor calibration circuits
- Legacy automation equipment from 1980s–2000s era
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Allen-Bradley 56S-1 model number designation specifies this exact variant; confirm with your original equipment documentation to ensure proper electrical and mechanical fit.
Works With
- Allen-Bradley programmable controllers (legacy PLC5, CompactLogix)
- Siemens, Omron, and other industrial control systems accepting potentiometer inputs
- Analog input modules requiring 0–10V feedback or equivalent
- Standard 3-terminal potentiometer circuits






