Abb THN3363 100A 3-pole 600V Heavy Duty Safety Switch

Product Description

The ABB THN3363 is a heavy duty fusible safety switch rated for 100 amps, 3 poles, and 600 volts, housed in a NEMA 1 enclosure. It is designed for use as a disconnect means in commercial and industrial electrical systems where a reliable, code-compliant shutoff is required. Licensed electricians install this switch to isolate downstream equipment for safe servicing or to comply with NEC disconnect requirements. The NEMA 1 enclosure suits indoor installations in clean, dry environments. At 15 pounds, the unit is robust and built for long service life in demanding electrical distribution applications.

The THN3363 is suited for indoor commercial and light industrial applications requiring a fused disconnect ahead of motors, HVAC equipment, panels, or other high-draw loads. It is appropriate wherever a 3-pole, 100-amp, 600-volt fusible switch is required by code or design. The NEMA 1 rating makes it a standard choice for electrical rooms, mechanical rooms, and switchgear lineups in controlled indoor environments.

Key Features

• 100-amp continuous current rating for heavy duty disconnect service
• 3-pole configuration handles three-phase electrical systems
• 600-volt rating supports a wide range of commercial and industrial voltages
• NEMA 1 enclosure designed for clean, dry indoor installations
• Heavy duty construction rated for frequent operation and demanding load conditions
• Fusible design allows overcurrent protection to be matched to the load

Compatibility

Designed as an OEM-style replacement or direct-install heavy duty fusible safety switch for indoor 3-phase electrical systems requiring a 100-amp, 600-volt, 3-pole disconnect.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the upstream supply before mounting or wiring the switch. Verify that fuse selection matches the load requirements and is appropriate for the voltage and amperage ratings of the switch. The NEMA 1 enclosure is not rated for wet or outdoor locations.

Technical Specifications

• Current Rating: 100 amps
• Number of Poles: 3
• Voltage Rating: 600 volts
• Enclosure Type: NEMA 1
• Switch Type: Heavy Duty Fusible Safety Switch
• Weight: 15 pounds
• UPC: 78316401134

Standard Information

• Brand: ABB
• Manufacturer Part Number: THN3363