Description
Overview:
The Terex Isolator Switch and Key (MPN 200 332) is a heavy‐duty electrical isolation switch designed for Volvo dumpers and other off‐highway plant. It provides a safe, positive means of disconnecting the main electrical supply during maintenance, storage, or transport. The unit features a removable red key for security and a durable, insulating body with robust metal terminals for dependable current transfer. Built for harsh site conditions, it helps prevent accidental start‐up and reduces battery drain when machinery is not in use. Supplied as a direct form‐fit replacement for the original switch used on many Volvo dumper models, it is suitable for fleet and single‐machine operators who need a reliable, straightforward isolation solution that supports safe working practices on site.
Key Features:
- Removable red key allows quick isolation and discourages unauthorised use
- Positive break of the main electrical feed for safer servicing and storage
- Tough, insulating polymer body with corrosion‐resistant metal terminals for long service life
- Designed for demanding environments with vibration, dust, and moisture typical of construction sites
- Simple retrofit: two‐stud connection and panel/bulkhead mounting for clean installation
- Clear on/off operation with firm key action for confident switching
- Direct replacement for OEM reference 200 332 on Volvo dumper applications
- Helps minimise parasitic battery drain when machines are parked
- Supports lockout practices during electrical and mechanical maintenance
- Low‐maintenance design with few wearable parts for reliable day‐to‐day use
Typical Applications:
Used to isolate the battery or main electrical circuit on Volvo dumpers during service tasks, diagnostics, or periods of inactivity. Common in plant hire fleets, construction and quarry operations to improve safety, deter unauthorised starting, and protect electrical components. Useful during transport or long‐term storage to prevent unwanted load on the battery and to provide a clear, physical point of disconnection for technicians.
Also known as:
Battery isolator switch, battery cut‐off, master switch, kill switch, battery disconnect, isolation key switch, main battery switch, power cut‐off, disconnect switch, safety isolator.
Alternate Part Numbers:
200332
Product Specifications
| L&S Part No. | 200 332 |
|---|---|
| OEM No. | 200 332 |
| Unit of Sale | 1 |
| Key Features | - Direct replacement for OEM reference 200 332 on Volvo dumpers - Removable red key for quick isolation and security - Tough polymer body with corrosion-resistant metal terminals - Two-stud connection for easy panel/bulkhead mounting - Minimises parasitic battery drain when machinery is inactive |


