An isolator switch is one of the most important — and most overlooked — components in a safe electrical installation. Its single job is critical: to completely and visibly disconnect a circuit or piece of equipment from the supply so it can be worked on safely.
What an Isolator Switch Actually Does
Unlike a circuit breaker, an isolator isn't primarily a protection device — it's a safe disconnection device. It provides a guaranteed, visible break in the circuit so that maintenance can be carried out with certainty that no power is present. This is a legal and safety requirement for much fixed equipment.
Where Isolators Are Required
- Air conditioning units and outdoor condensers
- Water heaters and immersion circuits
- Machinery and motors
- Solar PV systems
- Any fixed equipment requiring safe maintenance isolation
Indoor vs Weatherproof Isolators
For outdoor and exposed locations — AC condensers, rooftop equipment — a weatherproof (IP-rated) isolator is essential. The ABB Isolator Switch 63A 3 Pole is a robust choice for three-phase equipment isolation.
AED 48
SHOP NOW ?
Choosing the Right Isolator
- Current rating: must match or exceed the circuit load
- Pole count: matches the phases you need to isolate
- IP rating: weatherproof for outdoor use
- Type: AC isolators for standard mains equipment
For a Schneider option on three-phase circuits, the Schneider Isolator Switch 63A 3 Pole offers reliable, clearly-marked isolation.
AED 56
SHOP NOW ?
Frequently Asked Questions
Is an isolator the same as a circuit breaker?
No — a breaker protects against faults; an isolator provides safe, visible disconnection for maintenance.
Do I need a weatherproof isolator for my AC?
Yes — outdoor AC condensers require an IP-rated weatherproof isolator by regulation.
What IP rating do I need outdoors?
IP65 or higher is typical for exposed outdoor locations in the UAE.
Shop Genuine Electrical Products
Electrical Market stocks genuine MCBs, MCCBs, RCCBs, and isolators from Schneider, ABB, Legrand, and Hager with fast UAE delivery. Browse the full range, or call +971 56 619 6379 for technical guidance and bulk/trade pricing.