The Multiquip LBD729 Contactor 55 Amps 12VDC 3 Phase is a genuine OEM electrical switching component designed for the DCA70SSIU4F Super-Silent Generator series. As an OEM part sourced directly through Multiquip, LBD729 meets the exact electrical specifications required for safe and consistent three-phase load control on these units. Confirm your model code against DCA70SSIU4F before ordering to ensure a direct, proper installation. DHS Equipment stocks this part to keep your generator back in service without compromise.
Key Features
- Matched Electrical Specification: — Rated at 55 amps with a 12VDC coil voltage and three-phase switching capacity, matching the precise load-control demands of the DCA70SSIU4F Super-Silent Generator.
- Genuine OEM Component: — Sourced directly from Multiquip, this contactor carries the same part number and electrical rating as the unit installed at the factory, ensuring correct coil actuation and contact capacity.
- Direct Replacement Installation: — Designed to mount and wire into the existing contactor position on compatible Super-Silent Generator models without modification to the electrical panel or wiring harness.
- Sustained Load Switching Performance: — A functioning contactor at the correct amperage rating protects downstream circuits and generator windings; a failed or undersized contactor can cause arcing, voltage instability, or generator shutdown under load.
- Electrical Safety Compliance: — Using the correct OEM-rated contactor maintains proper overcurrent protection thresholds and supports safe three-phase power distribution to connected equipment and facilities.
A contactor is an electrically controlled switch used to open and close high-current circuits within a generator's power distribution system. In a three-phase generator like the DCA70SSIU4F, the contactor manages the connection between the alternator output and the load, allowing the generator to be safely energized or de-energized under control. When a contactor fails — through worn contacts, a burned coil, or insufficient amperage capacity — the generator may fail to deliver power, trip unexpectedly under load, or present a risk of arcing and electrical damage to connected equipment.
For questions about fitment or to confirm this part is correct for your unit, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | LBD729 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Contactor 55 Amps 12VDC 3 Phase |
Compatibility & Fitment
| Name | Model |
|---|---|
| Super-Silent Generators | DCA70SSIU4F |
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.
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