The Wacker Neuson Circuit Breaker is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series, including Diesel 2x12, 1x16, and 1x20 configurations. As a direct factory replacement, part installs exactly as the original, maintaining the electrical protection your heater depends on during extended cold-weather operation. This circuit breaker fits across all HI 770 XHD variants, making it the correct choice whether you're servicing an Arctic Bear XHD, Arctic Bear XHD NS, or standard HI770XHD unit.
Key Features
- Correct Trip Rating for the Application — Genuine OEM spec ensures this circuit breaker trips at the designed threshold for the HI 770 XHD electrical system, preventing nuisance trips and protecting sensitive heater components.
- Direct-Connect Replacement — Matches the original mounting configuration and terminal connection of the HI 770 XHD, dropping straight into place without modification to the control panel.
- Broad HI 770 XHD Coverage — Compatible with Arctic Bear XHD, Arctic Bear XHD NS, and standard HI770XHD configurations across multiple duct layouts including 2x12, 1x16, and 1x20 setups.
- Electrical Overload Protection — A correctly rated circuit breaker keeps the heater's electrical circuits within safe operating limits; an underrated or failed breaker can allow damaging current spikes or cause unexpected shutdowns in critical heating applications.
- Safety-Critical Electrical Component — Circuit breakers are a primary line of defense against electrical faults and potential fire hazards in fuel-fired heating equipment; using the correct OEM-rated part is essential for safe operation.
The circuit breaker is a resettable overcurrent protection device that monitors the electrical current flowing through the heater's circuits. When current exceeds the rated limit — due to a short circuit, wiring fault, or component failure — the breaker trips and interrupts the circuit before damage can occur. A worn or failed circuit breaker may fail to trip under fault conditions, exposing the heater's wiring and controls to potentially damaging current, or may trip unnecessarily under normal load, causing frustrating operational shutdowns.
Part Details
| Part Number | 5000166769 |
|---|---|
| Old Part Number | 0166769 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Circuit Breaker |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183, 5200003814, 5200004934, 5100049894 |
| HI770XHD Indirect Heater | Arctic Bear XHD NS | 5000620690 |
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.
