Robertshaw 5500-103 Infinite Switch

The Robertshaw 5500-103 Infinite Switch is a heavy-duty, voltage-sensing electric range control designed to manage the power dissipation of 120V heating elements. This Uni-Kit infinite switch serves as a reliable replacement for legacy VSI and INF series controls in both residential and commercial cooking equipment. Engineering for precision, it features a 5% low-input setting, allowing for granular temperature control across the full range of the heating element. The 5500-103M model is housed in a compact frame to fit tight control panels and includes a 2-inch break-off shaft (Stem Type A) with multiple adapters, ensuring compatibility with varying dial depths and mounting configurations. Rated for 15 Amps at 120 VAC, this surface element switch is built for high-demand environments where consistent cycle performance is critical. Field technicians value this 120V infinite switch for its universal mounting flexibility, supporting applications from warming drawers to high-wattage hot plates.

• Universal Compatibility: Includes dial adapters and a notched break-off shaft to replace most 120V infinite controls.
• Precise Heat Calibration: Features a 5% low-range input for accurate low-simmer settings and linear power distribution.
• Compact Housing: Small physical footprint allows for easy installation in crowded control consoles found in commercial kitchens.
• Robust Electrical Rating: Optimized for 15 Amp resistive loads, providing long-term reliability in specialized HVACR and appliance circuits.
• Complete Replacement Solution: Shipped as a Uni-Kit with a black dial and hardware for screw or palnut mounting.

Can the 5500-103 replace a 240V infinite switch?
No. The 5500-103 is strictly a 120V AC voltage-sensing control. Installing this on a 240V circuit will cause immediate component failure. For 240V applications, use the 5500-203.

How do I adjust the shaft length for specific equipment?
The shaft is designed with pre-scored break-off grooves. Use pliers to snap the shaft at the required depth to match the appliance’s original knob offset.

What is the purpose of the 'P' terminal on this switch?
The 'P' (Pilot) terminal is dedicated to the burner-on indicator lamp circuit. This ensures the indicator light signals whenever the heating element is energized.

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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.