Abb TH3363R 100A 3-pole 600V Nema 3R Fusible Safety Switch

Product Description

The ABB TH3363R is a heavy-duty fusible safety switch rated for 100 amps, 3 poles, and 600 volts, housed in a NEMA 3R enclosure for outdoor and weatherproof applications. This disconnect switch provides a reliable means of de-energizing electrical equipment in compliance with NEC requirements for disconnecting means. The NEMA 3R rating makes it suitable for installations exposed to rain and sleet, while the heavy-duty construction is built to handle the demands of commercial and industrial service. Licensed electricians install this switch as a service entrance disconnect, feeder disconnect, or motor branch circuit disconnect.

The TH3363R is designed for commercial and industrial applications where a robust, outdoor-rated fusible disconnect is required. Typical installations include rooftop HVAC equipment disconnects, industrial machinery branch circuits, and service entrance applications in facilities such as manufacturing plants, processing facilities, and commercial buildings. The fusible design allows overcurrent protection to be integrated directly into the disconnect point.

Key Features

• 100-amp continuous current rating suitable for heavy commercial and industrial loads
• 3-pole configuration handles three-phase power systems up to 600 volts
• NEMA 3R enclosure rated for outdoor use, resistant to rain and sleet
• Fusible design provides combined disconnect and overcurrent protection at a single point
• Heavy-duty construction intended for demanding commercial and industrial environments

Compatibility

Designed as an OEM-style heavy-duty fusible safety switch for use as a disconnect means in three-phase commercial and industrial electrical systems rated up to 600 volts.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the upstream supply and verify absence of voltage before opening the enclosure or making any connections. Ensure the enclosure is mounted at the correct height and orientation to maintain the NEMA 3R weatherproof rating. Fuse selection must match the circuit and load requirements per NEC Article 240.

Technical Specifications

• Amperage: 100 amps
• Poles: 3
• Voltage Rating: 600 volts
• Switch Type: Fusible
• Duty Rating: Heavy Duty
• Enclosure Type: NEMA 3R
• UPC: 783164009125

Standard Information

• Brand: ABB
• Manufacturer Part Number: TH3363R