Robertshaw 5500-208 Infinite Switch

For the veteran tech, the Robertshaw 5500-208 Infinite Switch is the definitive solution for restoring precise thermal regulation in commercial cooking equipment and high-demand resistive heating applications. This 208V infinite switch is a specialized voltage-sensing parallel circuit control designed to modulate power to heating elements in electric ranges, warming drawers, and countertop rotisseries. Engineered with a 5% low-heat input calibration, this non-push-to-turn (Non-PTT) component provides a linear power curve, ensuring consistent duty cycles even in intense kitchen environments. Its universal mounting design supports both screw-mount and palnut bushing configurations, while the 2-inch break-off shaft allows for custom depth adjustment to match various cabinet profiles. Rated for up to 15 Amps at 210°F, the Robertshaw INF-208-642 cross-reference offers reliable load management for any standard 208-volt radiant element or quartz heater, facilitating a seamless drop-in replacement that maintains the original equipment’s performance standards.

• Universal Compatibility: Includes adaptors and a 2-inch break-off shaft to match diverse equipment depths and dial requirements.
• Precise Modulation: Features a calibrated 5% input at the low setting for accurate simmer and hold temperatures.
• High-Temperature Durability: Rated for ambient operation up to 180°F, making it ideal for the extreme heat of commercial kitchens.
• Versatile Mounting: Dual-option housing supports both traditional screw-mount and bushing-style panels.
• OEM Performance: A direct Uni-Line 23783 replacement that meets UL and CE standards for safety and electrical integrity.

Is the 5500-208 compatible with 240V systems?
No, this specific model is calibrated for 208V AC operation. Using a 208V switch on a 240V circuit will lead to incorrect cycling and potential component damage.

Does this switch require a specific knob?
The included black dial and adaptor kit are designed to fit most standard profiles, though the Type A stem is compatible with many existing OEM knobs if the shaft length is correctly modified.

How do I ensure the switch is oriented correctly during installation?
The back of the housing is stamped with “TOP.” For proper internal calibration and gravity-assisted contact performance, the unit must be mounted with this marking facing upward.

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.