Description
The Leviton N3603 Powerswitch® Industrial Grade AC Manual Motor Controller provides heavy-duty manual ON/OFF switching and local disconnect capability for high-capacity three-phase motor loads. Housed in a weather-resistant, powder-coated steel NEMA Type 3R gray enclosure, this 60 Amp, 600 VAC non-fused three-pole (3-pole) manual motor controller is engineered to withstand harsh indoor and outdoor industrial environments subject to rain, sleet, or ice formation.
Built for demanding industrial applications, the N3603 delivers high horsepower handling up to 10 HP at 240 V, 25 HP at 480 V, and 30 HP at 600 V. It features flame-retardant (UL 94 V-0) thermoplastic polyester body components, a Valox 357 PBT handle, and extra-thick .046″ silver-cadmium oxide contacts for superior arc suppression across a 6,000-cycle inductive load lifecycle. Equipped with front-wired terminals accepting #10 to #4 AWG conductors, this non-fused switch is ideal for heavy manufacturing machinery, large industrial pumps, commercial HVAC units, and heavy-duty conveyor systems.
Key Features
- High-Capacity Three-Phase Control: Rated for 60 A / 600 VAC 3-pole non-fused manual switching and suitable as a local motor disconnect.
- Robust Horsepower Handling: Rated for up to 10 HP at 240 V, 25 HP at 480 V, and 30 HP at 600 V three-phase applications.
- NEMA Type 3R Outdoor Enclosure: Weather-resistant powder-coated steel housing protects internal switch assembly against rain, sleet, and outdoor weathering.
- Heavy-Duty Silver-Cadmium Oxide Contacts: Extra-thick .046″ contacts deliver maximum conductivity and high arc resistance rated for 6,000 inductive motor load cycles.
- Front-Wired Terminal Connections: Front-entry terminals accommodate #10 to #4 AWG conductors with triple-combination screws for straightforward wiring.
- Industrial Construction: Features flame-retardant thermoplastic housing and a Valox 357 PBT actuator handle operating reliably from -40°C to 60°C.
- 10-Year Limited Warranty: Backed by Leviton’s 10-year warranty for reliable service in severe duty applications.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | N3603 |
| Brand | Leviton (Powerswitch® Series) |
| Product Type | Non-Fused Enclosed AC Manual Motor Controller / Disconnect Switch |
| Amperage Rating | 60 A |
| Voltage Rating | 600 VAC |
| Poles / Phase | 3-Pole (Three-Pole / Three-Phase) |
| AC Horsepower Ratings | 10 HP @ 240 V AC, 25 HP @ 480 V AC, 30 HP @ 600 V AC |
| Enclosure Rating & Finish | NEMA Type 3R (Outdoor/Rainproof), Powder-Coated Steel (Gray) |
| Wiring / Termination | Front Wired (Terminals L1, L2, L3 & T1, T2, T3) |
| Terminal Conductor Range | #10 to #4 AWG |
| Terminal Screw Torque | 25 in-lbs maximum (Zinc-Plated Steel, Triple-Combination Screws) |
| Contact Material | .046 in Thick Silver-Cadmium Oxide |
| Body & Handle Material | Thermoplastic Polyester Body (UL 94 V-0 Rated), Valox 357 PBT Handle |
| Operating Temperature | -40°C to 60°C (-40°F to 140°F) |
| Inductive Load Endurance | 6,000 cycles at full rated current |
| Dielectric Voltage Withstand | Withstands 2200 V for 1 minute |
| Standards & Certifications | UL 60947-4-1 (supersedes UL 508), cUL per CSA C22.2 No. 111 (File #E63969), ANSI C-73, NEMA WD-1 & WD-6, NOM-ANCE |
| Warranty | 10-Year Limited Warranty |
| Primary Applications | Heavy motor disconnect, large industrial pumps, commercial HVAC systems, high-capacity conveyors, manufacturing machinery |
Reviews
There are no reviews yet.