The Wacker Neuson Time Delay Relay DPDT On Delay 8 Pin is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series, including Arctic Bear XHD and Arctic Bear XHD NS configurations. As a direct OEM replacement sourced from Wacker Neuson, this relay matches the original part in every specification — ensuring the heater's control circuit operates exactly as engineered. It fits across multiple HI 770 XHD build variants, making it the correct choice for technicians working on a range of these diesel indirect air heaters.
Key Features
- OEM-Spec Switching Characteristics — Genuine Wacker Neuson part built to exact DPDT on-delay timing tolerances, ensuring the relay switches at the correct interval every time the heater cycles.
- 8-Pin Direct Plug-In Fitment — Configured with an 8-pin base that drops directly into the original relay socket with no splicing or wiring adaptation needed.
- Broad HI 770 XHD Coverage — Confirmed fitment across Arctic Bear XHD, Arctic Bear XHD NS, and multiple HI 770 XHD Indirect Air Heater build variants in both single- and dual-outlet configurations.
- Correct On-Delay Sequencing Restored — A failed time delay relay causes improper burner sequencing, uncontrolled startup, or complete heater shutdown; replacing with 5200009338 restores the designed ignition and airflow timing sequence.
- Electrical Safety Compliance — As a control relay governing ignition sequencing on a diesel-fired heater, using the genuine OEM part ensures the circuit operates within the original safety parameters of the heater's design.
A time delay relay controls the sequence and timing of electrical signals within the heater's control circuit, introducing a deliberate, calibrated pause between trigger input and output switching. In an indirect air heater like the HI 770 XHD, this relay manages the on-delay sequence that coordinates the burner ignition and airflow stages during startup, preventing components from activating out of order. When this relay fails or drifts out of spec, the heater may fail to start, shut down unexpectedly, or cycle incorrectly — disrupting heat output and potentially triggering fault conditions in the control system.
Part Details
| Part Number | 5200009338 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Time Delay Relay DPDT On Delay 8 Pin |
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.
