Multiquip EE55785 Auxiliary Switch

The Multiquip EE55785 Auxiliary Switch is a genuine OEM replacement built for Super-Silent and Studio generator models including the DCA150SSJU4F3, DCA180SSJU4F3, DCA220SSJU4F, DCA220SSJU4F2, DCA220SSJU4F3, DCA600SSV4F3, DCA600SSV4F3PB, DCA70SSIU4F, SG1400C3-55748, SG1400C4F, SG1600C4F, and CG500V4F series. As a genuine Multiquip OEM component, the part is manufactured to the same specification as the original part, ensuring correct electrical function and a direct drop-in installation. DHS Equipment supplies this part with verified fitment across the generator families listed, so you can order with confidence.

Key Features

• Genuine OEM Electrical Specification — Manufactured to the exact switching rating and terminal configuration of the original, ensuring correct circuit behavior in your generator control system.
• Direct Drop-In Installation — Matches the original mounting points and connector terminals, allowing straightforward swap-out without rewiring or adapting hardware.
• Broad Generator Family Fitment — Confirmed fit across Super-Silent DCA series, Studio SG series, and CG containerized generator models including DCA220SSJU4F, DCA600SSV4F3, SG1400C4F, SG1600C4F, and CG500V4F.
• Consistent Control Circuit Operation — A correctly functioning auxiliary switch keeps secondary circuits, control interlocks, and panel functions operating as designed — a worn or failed switch can cause erratic panel response or loss of secondary circuit control.
• Electrical Safety Compliance — Using the correct OEM-rated switch in a generator control circuit helps maintain proper overcurrent and interlock behavior, which is critical in power generation applications.

An auxiliary switch is a secondary switching element integrated into the generator's control or distribution panel, designed to open or close supplementary circuits in response to a primary switching action. It plays an important role in coordinating control interlocks, remote signaling, and panel indicator functions within the generator's electrical system. When an auxiliary switch fails or wears out, secondary circuits may not respond correctly, leading to unreliable panel operation, nuisance faults, or loss of interlock protection.

For questions about fitment or to confirm compatibility with your specific unit, contact the DHS Equipment parts team.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.