The Husqvarna 502542503 Frequency Inverter is a genuine OEM component designed for the PG820RC and PG680RC floor grinders. As a direct factory replacement, this inverter delivers the exact electrical specifications required to maintain proper motor speed control on these machines. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM-Matched Electrical Specification — Built to Husqvarna's exact output frequency and voltage parameters, ensuring the drive motor receives the correct signal for consistent speed regulation across the grinding head.
- Direct Replacement Fit — Engineered to mount in the original inverter position on PG820RC and PG680RC floor grinders, connecting to existing wiring harnesses without adaptation.
- Compatible with PG820RC and PG680RC Floor Grinders — Confirmed fitment for both the PG820RC and PG680RC planetary floor grinders; cross-reference 502542503 against your parts diagram before ordering.
- Restored Motor Speed Control — A functioning frequency inverter allows the grinder's motor to ramp smoothly through its operating range; a failed unit causes erratic speed, loss of grinding control, or complete motor shutdown.
- Electrical Safety Compliance — Genuine OEM construction ensures the inverter meets the original design's insulation ratings and protection circuits, supporting safe operation of the machine's high-frequency drive system.
The Frequency Inverter is the electrical component responsible for converting incoming power into a variable-frequency output that controls the speed of the grinder's drive motor. By adjusting the frequency delivered to the motor, it allows the operator to dial in the correct grinding speed for different floor surfaces and tooling. When the inverter fails or degrades, the machine may exhibit inconsistent motor speeds, failure to start, or erratic behavior under load — all of which compromise surface quality and operator control.
Part Details
| Part Number | 502542503 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Frequency Inverter |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | PG820RC |
| Floor Grinder | PG680RC |
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.
