Robertshaw 5500-136 Infinite Switch

The Robertshaw 5500-136 Infinite Switch is a vintage-spec, 120V electrical control designed for precise proportional power regulation in resistive heating applications. Engineered as a voltage-sensing parallel circuit control, this 120V infinite switch is a direct replacement for INF-120 and VSI series components used in commercial and residential foodservice equipment. It features a push-to-turn (PTT) safety mechanism and a compact housing that minimizes the physical footprint behind the control panel, ensuring compatibility with tight HVACR equipment assemblies.

This O.E.M. replacement part operates with a 5% low-end input calibration, providing linear temperature control from "Low" to "High" detents. Rated for 15 Amps at 210°F, the Robertshaw 5500-136 utilizes 8-32 UNC mounting threads and includes a universal break-off shaft to match varying dial depths. As a veteran-preferred range stove control switch, it ensures reliable resistive load management for warming drawers, space heaters, and quartz heating elements where 120VAC line voltage is standard.

• Universal Compatibility: Includes multiple shaft adapters and a break-off stem to fit nearly any "D" stem dial configuration.
• Precise Calibration: The ±5% accuracy rating at the low setting prevents temperature overshoot during delicate holding cycles.
• Industrial Durability: Rated for high-ambient environments up to 180°F, ideal for proximity to heating elements.
• Standardized Infrastructure: Uses standard 1/4" quick-connect terminals for fast, secure wiring.

Is the Robertshaw 5500-136 compatible with 240V systems?
No, this specific model is calibrated for 120V AC applications only. Installing a 120V switch on a 240V circuit will cause immediate component failure and poses a safety risk.

Can I use my existing dial with this replacement switch?
Yes, the Robertshaw 5500-136 comes with a universal adapter kit and a notched break-off shaft designed to accommodate most original equipment knobs.

Does this switch support a pilot light?
Yes, the switch includes a "P" terminal for wiring indicator lights to signal when the heating element is energized.

This item is not eligible for free shipping.

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.