SCHNEIDER ISOLATOR 3 POLE

Here’s a clear product specification for a Schneider Electric 3-Pole Isolator / Switch Disconnector — a manual device used to safely disconnect a three-phase circuit for maintenance or service. Below is the typical specification that applies to common Schneider 3-pole isolators:

What This Specification Means

3 P (three poles):
Disconnects all three phase conductors at once — essential for safely isolating a three-phase supply before work.
No neutral switching unless specifically 4-pole isolator is used.

Rated Operational Voltage:
Up to 500 V AC is typical in industrial and commercial three-phase systems.

Rated Current:
You choose the isolator current rating (e.g., 32 A for smaller circuits, 40 A/ 63 A for bigger loads). The isolator rating should at least match or exceed the full load current of the circuit you are isolating.

Safety Standard:
Schneider 3-pole isolators are built to IEC 60947-3, which covers switch disconnectors — devices designed to break and isolate circuits safely.

Common Schneider Electric 3-Pole Isolators

Some typically available models include:
• Schneider Electric 3-Pole Panel Mount Isolator Switch (vcf02/vvd0 types) – good general use isolator for distribution panels.
• Schneider Electric 3-Pole Isolator Switch vn20 – mid-range panel isolator.
• Schneider Electric 3-Pole Fixed Isolator Switch 28900 – fixed isolator with sturdy build.
• Schneider Electric 3-Pole DIN Rail Non-Fused Switch Disconnector (up to 63 A) – DIN-rail mountable isolator with higher current ratings.

How It Is Used

A 3-pole isolator switch is used to manually disconnect the three-phase supply before working on equipment like motors, compressors, HVAC units, pumps, or control panels. It’s not a protective device like a breaker — it does not protect against overload or short circuits; it only provides a visible mechanical disconnection point for safety.

Sizing & Installation Tips

Choose an isolator with a current rating (In) at least as large as the circuit’s full load current (e.g., 40 A to isolate a 32 A motor feeder).
Ensure the isolator is padlockable in the OFF position if used for safety lockout/tagout procedures.
Use protective devices (MCBs/MCCBs) upstream — isolators are not meant to replace them.