The Wacker Neuson Terminal Block, 4 Position, DIN Mount, Gray is a genuine OEM electrical component designed for the HI1000, HI260, E1250, and HSH380 series heaters. As a direct-source OEM part, it meets the exact design and materials specification of the original component installed at the factory, ensuring a consistent, correct connection within the heater's electrical circuit. This terminal block is a verified fit across a broad range of Wacker Neuson hydronic and indirect air heaters in both diesel and LP/NG configurations.
Key Features
- Correct Contact Rating for Heater Electrical Circuits — Sourced directly from Wacker Neuson, this terminal block carries the precise voltage and current handling characteristics required by the heater control system, preventing overheating or intermittent faults at the connection point.
- DIN Rail Mount Design — Clips directly onto a standard DIN rail, matching the mounting profile of the original, so installation is straightforward and the block seats securely without movement or vibration loosening.
- 4-Position Configuration — Four discrete terminals in a single gray-bodied block allow multiple circuit conductors to be landed cleanly and independently, keeping wiring organized and traceable during service.
- Broad Heater Series Coverage — A single part number covers HI1000 indirect air heaters, HI260 oil heaters, E1250 hydronic heaters (Basic, Standard, and Premium), and HSH380 heaters across diesel, natural gas, and propane variants.
- Electrical Safety Integrity — In a combustion heater application, a correctly rated and properly seated terminal block is essential for safe, fault-free operation; a degraded or undersized block can cause control failures or create ignition-circuit hazards.
A terminal block is a modular wiring connector that provides a secure, organized point where individual electrical conductors are joined within a control panel or enclosure. In Wacker Neuson heaters, the terminal block routes power and control signals between the burner assembly, thermostat, and safety circuits, keeping those connections isolated, labeled, and accessible for service. When a terminal block cracks, corrodes, or loses clamping force on a conductor, it can cause intermittent control faults, failed ignition sequences, or unresponsive safety shutoffs — all of which take the heater out of service until the connection point is restored.
Part Details
| Part Number | 5200017787 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Terminal Block, 4 Position, DIN Mount, Gray |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI260 HEATER,OIL WITH TANK | HI260 | 5200018503, 5200018504 |
| E1250S | E1250S | 5200012355, 5200012354 |
| E12540B | E1250B | 5200012353, 5200007613 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| HI1000 Indirect Air Heater, Diesel w/Tank | HI1000 | 5200011232, 5200011233, 5200011231, 5100049274, 5100049273 |
| HI1000 Indirect Air Heater, DGM, Electric Break | HI1000DGM | 5200011234, 5200011235, 5100049275, 5100049276 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359, 5200007614 |
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.