The Wacker Neuson Pressure Switch is a genuine OEM component designed for the E1250S and E1250P hydronic heaters and the HSH380S hydronic surface heater series. Sourced directly from Wacker Neuson, this pressure switch matches the original part in form, function, and specification — ensuring a direct drop-in replacement with no guesswork. Compatible across LP/NG and diesel-fueled variants of these heater families, including generator-equipped HSH380S configurations, this part covers a broad range of Wacker Neuson hydronic heating equipment.
Key Features
- OEM-Spec Pressure Sensing: — Calibrated to the correct activation and cutoff thresholds for Wacker Neuson hydronic heating systems, ensuring the switch triggers at the right pressure points every time.
- Direct-Fit Replacement: — Engineered to match the original mounting position and electrical connection of the factory switch, allowing straightforward installation without adapters or modification.
- Broad Heater Family Coverage: — Fits E1250S (LP/NG), E1250P (LP/NG and Diesel), HSH380S (Natural Gas/Propane), and HSH380S (Diesel with Generator) variants.
- System Protection Function: — A correctly functioning pressure switch safeguards the heater's fluid circuit by detecting pressure anomalies; a failed switch can result in undetected pressure loss, unsafe heater operation, or nuisance shutdowns.
- Safety-Critical Electrical Component: — As a control component in the heater's protection circuit, using a correctly rated OEM switch ensures the system responds accurately to pressure conditions, maintaining safe operation in cold-weather job environments.
The pressure switch in a hydronic surface heater monitors the fluid pressure within the heating circuit and signals the control system when pressure falls outside safe operating limits. It acts as a protective device — if fluid pressure drops due to a leak, pump failure, or blockage, the switch triggers a shutdown to prevent damage to the heater and connected components. When this switch fails or drifts out of calibration, the heater may shut down unexpectedly, fail to start, or — in a worst case — continue operating without proper pressure protection, risking damage to the system.
Part Details
| Part Number | 5200013272 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pressure Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
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.
