The Wacker Neuson Varistor Resistor 115V is a genuine OEM electrical component designed for the IRFUN 38/115 and IRFUN 45/115 series internal concrete vibrator inverters. As a direct OEM replacement, part is manufactured to the exact electrical specification required by these inverter-driven vibrator systems, ensuring the component seats and connects correctly within the inverter circuit. This part fits the full range of IRFUN 38/115 and IRFUN 45/115 configurations, including standard, GV rubber-tip, 8m, and 10m cable variants. Sourcing a genuine Wacker Neuson replacement means the varistor will perform to the same voltage-handling and surge-suppression standard as the original.
Key Features
- Correct 115V Voltage Rating — Matched to the operating voltage of the IRFUN inverter circuit, ensuring the varistor handles transient surges without under- or over-rating.
- Genuine OEM Electrical Component — Produced to Wacker Neuson's exact resistance and clamping specification, so the inverter's protective circuit performs as engineered.
- Direct Drop-In Replacement — Designed to fit the inverter board mounting points on IRFUN series vibrators without modification to wiring or housing.
- Broad IRFUN Series Coverage — Compatible with IRFUN 38/115 and IRFUN 45/115 models across standard, GV rubber-tip, 8m, and 10m cable configurations.
- Surge Protection for Inverter Longevity — A functioning varistor absorbs voltage spikes that would otherwise damage sensitive inverter components; a failed unit leaves the inverter board exposed to electrical transients.
- Electrical Safety Compliance — Replacing a degraded varistor with a genuine OEM part maintains the inverter's designed overvoltage protection, an important safety consideration in wet concrete environments.
A varistor (variable resistor) in a concrete vibrator inverter acts as a voltage-dependent surge suppressor within the electronic drive circuit. When the supply voltage spikes above a set threshold, the varistor rapidly drops its resistance to divert excess energy away from the inverter's sensitive components, protecting the board from damage. When a varistor fails — either by degrading over time or burning out after a large surge — the inverter loses that protection layer, which can result in board failure, erratic motor speed, or complete loss of vibration output in the concrete head.
Part Details
| Part Number | 5000106364 |
|---|---|
| Old Part Number | 0106364 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Varistor Resistor 115V |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 38 mm Internal Vibrator Invert er | IRFUN 38/115 | 5000008495, 5000008494 |
| 45 mm Internal Vibrator Invert er | IRFUN 45/115 | 5000008497, 5000008496, 5000008773 |
| Ø 38 mm Internal Vibrator Inve rter, Rubber Tip | IRFUN 38/115 GV | 5000008722, 5000008631 |
| Ø 45 mm Internal Vibrator Inve rter, Rubber Tip | IRFUN 45/115 GV 8m | 5000008723, 5000008775 |
| Internal vib. IRFUN 45/115 GV | IRFUN 45/115 GV | 5000008630 |
| Ø 38 mm Internal Vibrator Inve rter | IRFUN 38/115 8m | 5000008769 |
| Ø 38 mm Internal Vibrator Inve rter | IRFUN 38/115 10m | 5000008770 |
| Ø 38 mm Internal Vibrator Inve rter, Rubber Tip | IRFUN 38/115 GV 8m | 5000008771 |
| Ø 38 mm Internal Vibrator Inve rter, Rubber Tip | IRFUN 38/115 GV 10m | 5000008772 |
| Ø 45 mm Internal Vibrator Inve rter | IRFUN 45/115 10m | 5000008774 |
| Ø 45 mm Internal Vibrator Inve rter, Rubber Tip | IRFUN 45/115 GV 10m | 5000008776 |
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.
