Multiquip Y0601820839 Over Current Relay

The Multiquip Y0601820839 is a genuine OEM Over Current Relay designed for Multiquip DCA and NGA series super-silent generators, including the DCA25SSIU4F, DCA40SSKU4F2, DCA70SSIU4F, DCA70SSJU4F, DCA150SSJU4F, DCA600SSV4F3, and NGA100SSPUL. As a direct OEM replacement sourced from Multiquip, part Y0601820839 is built to the exact electrical specifications required by the generator's protection circuit. This relay is a critical safety and control component — correct fitment ensures the generator responds accurately to overload conditions and protects downstream electrical systems. Confirm your model code against the fitment list before ordering to ensure compatibility with your specific unit.

Key Features

• Correct Trip Threshold: — Matched to the precise overcurrent trip point required by DCA and NGA series generator control circuits, ensuring accurate load protection.
• Genuine OEM Component: — Sourced directly from Multiquip, this part carries the same electrical ratings and terminal configuration as the original relay installed at the factory.
• Broad DCA and NGA Series Coverage: — Fits DCA25SSIU4F, DCA40SSKU4F2, DCA70SSIU4F, DCA70SSJU4F, DCA150SSJU4F, DCA600SSV4F3, and NGA100SSPUL super-silent generator models.
• Direct Drop-In Replacement: — Designed to match the original relay's mounting footprint and terminal layout, so reinstallation follows the existing wiring without modification.
• Overload Protection Restored: — A worn or failed over current relay can leave the generator unable to detect damaging overload conditions, risking connected equipment and generator components alike.
• Electrical Safety Compliance: — Restores the generator's built-in overcurrent protection to its specified operating parameters, an important consideration for job site power reliability and connected load safety.

An over current relay monitors the electrical output of a generator and trips — interrupting the circuit — when the current draw exceeds a safe threshold. This protects both the generator's alternator windings and any connected equipment from damage caused by sustained overloads or short-circuit conditions. When this relay fails or trips without resetting correctly, the generator may shut down unexpectedly, fail to hold load, or lose its ability to protect against overload events entirely — making prompt replacement with the correct OEM part essential to safe, continuous operation.

DHS Equipment is an authorized Multiquip parts dealer. For fitment questions or parts support, contact our team directly.

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.