SQUARE D
SQUARE D V3 Load Break Switch 600 V 3PST 63 A
Non-fusible load-break switch rated 63 A and 600 V with 3PST contacts, DIN-rail mount, IP20 enclosure and 10 hp at 240 V, 20 hp at 480 V, 30 hp at 600 V
- General-duty isolation up to 600 V AC with 63 A rating
- 3-pole non-fusible design simplifies DIN-rail mounting
- Motor-load capacity of 10 hp at 240 V, 20 hp at 480 V, 30 hp at 600 V
- IP20 enclosed non-metallic housing protects contacts from dust
- 8 mm shaft opening allows direct handle or remote operation
Industrial load break switch 63 A
The SQUARE D V3 is a non-fusible load break switch rated for 63 A and 600 V AC. It uses a 3PST contact form across three poles for three-phase circuits. The IP20 enclosed housing is non-metallic and mounts on standard DIN rail. It suits panels that need a visible break without integrated overcurrent protection.
Thermal and power profile
At 240 V AC the switch handles 10 hp, at 480 V AC it handles 20 hp, and at 600 V AC it handles 30 hp. The non-metallic enclosure and IP20 rating indicate passive cooling with no forced airflow. No power-draw or acoustic data is provided for normal operation.
Shaft opening and mounting impact
An 8 mm (0.31 in) shaft opening accepts standard handles or extension shafts for front-door operation. DIN rail mounting simplifies panel assembly and keeps wiring to three conductors. The absence of a neutral assembly and fusible provisions means the installer must provide separate protection and neutral routing where required.
Highlights
- General-duty isolation up to 600 V AC with 63 A rating
- 3-pole non-fusible design simplifies DIN-rail mounting
- Motor-load capacity of 10 hp at 240 V, 20 hp at 480 V, 30 hp at 600 V
- IP20 enclosed non-metallic housing protects contacts from dust
- 8 mm shaft opening allows direct handle or remote operation
Specifications
| Brand | SQUARE D |
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Questions about this item
How is the 3PST 63 A switch mounted on a DIN rail and what step is often missed?
Clip the non-metallic housing onto a standard DIN rail; the step often missed is aligning the 8 mm shaft opening with the external operator before securing the latch.
What maintenance or replacement will the IP20 enclosed load-break switch need over time?
Periodically inspect the three-pole contacts for erosion and verify the 8 mm shaft operates freely; replace the complete unit if contact wear exceeds the 63 A rating.
At what load does the 600 V non-fusible switch reach its thermal limit first during sustained use?
The 63 A continuous current rating is the limiting factor; at 600 V AC the 30 hp motor load draws near this ceiling, so sustained operation above 63 A will trip the thermal protection first.
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