Robertshaw 5500-135M Infinite Switch

The Robertshaw 5500-135M Infinite Switch is a high-performance 120V white dial commercial control designed for precision temperature management in electric ranges, warming zones, and barbecue grills. As a voltage sensing infinite switch, this unit offers a parallel circuit design that ensures consistent heat output by regulating power through a rotary switch mechanism. This model features a 5% input at low calibration, providing stable low-end control for sensitive cooking applications. The 5500-135M is the direct replacement for 5500-135, as well as the INF-120-1152 and 23715 models, fitting seamlessly into existing commercial cooking equipment setups. Its compact design and universal mounting capabilities—supporting both screw and palnut configurations—make it a versatile choice for field repairs. The heavy-duty 2-1/8 inch break-off shaft allows technicians to customize lengths on-site, ensuring OEM compatibility across various appliances while maintaining a maximum rating of 15 Amps at 120V AC.

• Direct Replacement: Specifically engineered to replace the legacy Robertshaw 5500-135 and VSI (INF) series switches without additional modifications.
• Field Versatility: Features a universal break-off shaft and multiple mounting options to adapt to various panel depths and OEM dial requirements.
• Precision Control: Utilizes low-to-high detents and a 5% pulse duty cycle at the low setting for accurate proportionate heat control.
• High Thermal Tolerance: Rated for ambient temperatures up to 257°F (125°C), making it ideal for high-heat commercial environments.

• Can I use my original equipment dial with this switch? Yes, the 5500-135M includes a shaft adapter kit and a heavy-duty break-off shaft designed to accommodate original dials or the included white dial overlay.
• Is this switch compatible with 240V systems? No, this is a 120V AC dedicated component. For 240V applications, use the 5500-200 series.
• How should the switch be oriented during installation? For proper calibration, the switch must be mounted with the slotted vents facing up, as indicated by the "Top" marking on the rear housing.

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.