The Wacker Neuson Relay 20/35A is a genuine OEM electrical relay designed for the TH627 indirect-fired air heater. Sourced directly from Wacker Neuson, this relay matches the original component specification and slots into the TH627 control circuit without adaptation. Keeping the correct relay in service is essential to consistent heater operation — a failed or undersized relay can prevent ignition sequencing or shut down burner control at the wrong time. If your TH627 is showing erratic heating cycles or electrical faults, verifying and replacing this relay is a straightforward first step.
Key Features
- Correct Switching Capacity: — Rated at 20/35A to match the original electrical load demands of the TH627 heater control circuit.
- Genuine OEM Component: — Supplied by Wacker Neuson as an authorized replacement part, ensuring exact terminal configuration and coil voltage compatibility.
- Direct-Fit for TH627: — Confirmed fitment for the TH627 indirect-fired air heater (418-02), so there is no guesswork on connector type or mounting position.
- Restores Reliable Ignition Control: — A correctly functioning relay ensures the burner and blower circuits are switched in the right sequence, maintaining steady heat output on the jobsite.
- Electrical Safety Compliance: — Using the OEM-specified relay prevents overloading of control circuits, protecting other heater components from voltage irregularities caused by an incorrect substitute.
A relay is an electrically operated switch that allows a low-current control signal to switch a higher-current circuit on or off. In the TH627 indirect-fired air heater, the relay manages power to key operating circuits such as the burner ignition and blower motor, acting as the intermediary between the control board and the higher-draw components. When a relay fails — whether through contact wear, coil burnout, or thermal fatigue — the heater may refuse to start, cycle unpredictably, or shut down without warning. Replacing a faulty relay with the correct 1000333390 unit restores proper circuit switching and gets the heater back to full, dependable output.
Part Details
| Part Number | 1000333390 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Relay 20/35A |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| SPARE PARTS LIST 418-02 / TH627 | TH627 (418-02) | 1000362623 |
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.
Wacker Neuson
Wacker Neuson Part # 1000394036 - Relay 35a - Genuine OEM Part
