The Husqvarna 578350501 Circuit Breaker is a genuine OEM electrical protection component designed for the PG680 and PG820 floor grinders. As a factory-original part, it matches the exact amperage rating and form factor specified by Husqvarna, ensuring the machine's electrical system is protected the way it was engineered to be. This circuit breaker is a direct replacement for the original unit on both the PG680 and PG820, and DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM-Matched Amperage Rating — Genuine Husqvarna part built to the exact electrical specification of the original, maintaining proper overcurrent protection for the grinder's motor circuit.
- Direct Drop-In Replacement — Designed to fit the existing mounting position and wiring connections on the PG680 and PG820, so installation restores the machine to original configuration.
- Compatible with PG680 and PG820 Floor Grinders — Verified fitment across both planetary floor grinder models, covering a wide range of professional concrete grinding applications.
- Protects Motor and Drive Components — A functioning circuit breaker interrupts overcurrent events before damage reaches the motor or control electronics, preventing costly secondary failures.
- Electrical Safety Compliance — Using the correct OEM-rated breaker ensures the machine's overcurrent protection operates within Husqvarna's designed safety parameters, critical for operator protection on live electrical equipment.
A circuit breaker in a floor grinder serves as the primary electrical safeguard between the power supply and the machine's motor and control systems. When current draw exceeds the rated threshold — whether from a motor overload, a short circuit, or a wiring fault — the breaker trips and interrupts the circuit before damage can occur. A breaker that fails to trip correctly exposes the motor and electronics to damaging overcurrent, while one that trips too easily causes unwanted shutdowns during normal operation; either condition means the part needs to be replaced with one that matches the original specification exactly.
For fitment verification, cross-reference part number 578350501 against your machine's parts diagram before ordering. Contact DHS Equipment with any questions about compatibility with your PG680 or PG820.
Part Details
| Part Number | 578350501 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Circuit Breaker |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | PG680 |
| Floor Grinder | PG820 |
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.
