The ESR 125A 4 Pole Rotary Isolator Switch is built for heavy-duty industrial and commercial electrical isolation. Designed to meet rigorous safety and performance standards, it offers safe on-load disconnection for high-current applications such as motors, machinery, commercial kitchens, or agricultural equipment.
Constructed from durable ABS/polycarbonate, its IP65-rated enclosure ensures protection against dust and water jets, making it ideal for both indoor and outdoor installations. The high-visibility red/yellow rotary handle, interlocked lid, and lockable switch make it a reliable, tamper-resistant solution for professionals.
With spacious dimensions and 20–32mm cable entry knockouts, this isolator simplifies cable routing and ensures hassle-free installation. Tested to comply with BS EN 60947, it is a trusted solution for demanding switchgear environments.

✴️ Key Features:
✅ 125A Heavy-Duty Load Rating 
✅ 4 Pole Switching for complete phase isolation
✅ IP65 Rated Enclosure – Weather and dust resistant
✅ Lockable Handle – Prevents unauthorized operation
✅ Lid Interlock – Cover only removable in OFF position
✅ Durable ABS / Polycarbonate Body
✅ High Visibility Red/Yellow Rotary Switch
✅ 4 Secure Screws for Front Cover Removal
✅ Large Cable Knockouts (20mm & 32mm) – Top & bottom entries
✅ BS EN60947 Compliant – Tested for performance and safety

🛠️ Applications:
🏭 Industrial machinery disconnection (e.g. conveyor belts, compressors)
🍳 Commercial kitchen equipment (fryers, ovens, cookers)
🚜 Agricultural systems (grain bins, pumps, feed machines)
🏢 Large HVAC or electric panel control
🛠️ Workshops, factories, heavy installations
⚡ Generator or main power cut-off units