Kele Product RES-1E Transducer

The Kele RES-1E Universal Resistance Transducer is the professional upgrade and direct replacement for the legacy RES-1, providing field-hardened analog to resistance conversion for complex building automation systems. Designed for technicians requiring a reliable DIN-rail mounted resistance converter, this unit translates standard 4–20 mA, 0–10 VDC, and PWM signals into precise resistance outputs to drive electric actuators, boilers, and chillers. With a high ±1% accuracy across 255 steps of resolution, it effectively eliminates the maintenance headaches associated with motorized slide-wire potentiometers.

Installers can quickly tailor the Kele RES-1E to specific site requirements using the onboard DIP-switch configuration. It supports a broad range of selectable outputs including 0–135 ?, 0–270 ?, 0–500 ?, and 0–1000 ?, as well as wide-span custom ranges up to 1 M?. The inclusion of failsafe and signal-loss features ensures that your controls respond predictably in the event of a loop failure. Operating on 24VAC/VDC, this transducer is a staple for HVAC signal conversion and sensor reset circuits where precision and versatility are non-negotiable.

• Universal Compatibility: Accepts nearly any common automation signal including mA, VDC, and various Pulse Width Modulation (PWM) rates.
• Precise Output: High linearity and resolution ensure accurate control of electric actuator resistance inputs.
• Easy Monitoring: Integrated LED status indicators provide immediate visual feedback on power and signal integrity during commissioning.
• Robust Mounting: Secure screw terminals and a universal track mount (DIN or snap-track) simplify high-density control panel installations.
• Direct Retrofit: Engineered specifically to replace the discontinued Kele RES-1 without requiring extensive cabinet redesign.

What happens if the input signal is lost?
The RES-1E features a built-in signal-loss mode that can be configured to hold the last value or go to a specific failsafe resistance level, protecting downstream equipment like boilers from unexpected cycles.

Can this replace an old slide-wire potentiometer?
Yes, this electronic transducer is the industry-standard replacement for mechanical slide-wire systems, offering better longevity and zero mechanical wear.

Does it require a separate power supply for the input loop?
The unit operates on 24 VAC or 24 VDC; however, the input impedance (250 ? for current, 27.5 k? for voltage) should be calculated within your total loop load to ensure signal stability.

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.