Little Giant 545600 Switch

The Little Giant 545600 Switch is a heavy-duty, pressure-activated piggyback diaphragm switch engineered for automatic pump operation in demanding HVACR and wastewater applications. This versatile remote pump switch allows contractors to convert manual submersible pumps, including sump, effluent, and utility pumps, into fully automated systems without complex rewiring. Designed for 115/230V dual-voltage compatibility, it features a 3-foot power cord and a piggyback plug that simplifies the connection between the motor and the power source. The mechanical action is triggered by water pressure against a sensitive diaphragm membrane, typically engaging at 6" to 9" and cutting out at 1" to 4" depending on the specific pump housing. Built by Franklin Electric, the Little Giant RS-5 replacement switch is ideal for tight basins and limited-clearance sump pits where traditional float switches might hang up. As a reliable liquid level controller for up to 1/2 HP motors, it ensures consistent wastewater management and condensate removal performance.

• Dual-Voltage Versatility: Configurable for both 115V and 230V electrical systems, providing flexibility for diverse job site requirements.
• Space-Saving Design: The compact, remote diaphragm switch housing fits into narrow basins where mechanical float switches often fail or become obstructed.
• Simplified Installation: The piggyback plug allows the pump to be plugged directly into the switch, eliminating the need for hardwiring or control panels.
• Industrial-Grade Reliability: Specifically designed to handle running amps up to 10A, ensuring stable performance for 1/2 HP submersible pumps.

Can I hardwire the 545600 switch by cutting the plug?
No. The plug contains a critical vent tube necessary for the diaphragm to breathe and respond to changes in water pressure. Hardwiring will obstruct this vent, causing the switch to malfunction.

How do I test if my diaphragm switch is failing?
Bypass the switch by plugging the pump directly into a wall outlet. If the pump runs, the switch or its diaphragm inlet hole may be clogged or defective. Ensure the breather tube in the plug is clear of debris.

Is this switch compatible with 230V ice machine pumps?
Yes, the Little Giant 545600 is an OEM replacement switch frequently specified for RIM-U series ice machine pumps and other high-voltage condensate applications.

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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.