Abb th3361 Fusible Disconnect Switch 30A 3P 600V

Product Description

The ABB th3361 is a heavy-duty fusible disconnect switch rated for 30 amps at up to 600 volts AC across 3 poles. It is housed in a NEMA 1 enclosure, making it suitable for dry indoor installations. The switch provides a safe, code-compliant means of isolating electrical loads for maintenance or service. It accepts standard fuses to provide overcurrent protection in addition to disconnection capability. Licensed electricians install this type of device in motor branch circuits, HVAC equipment disconnects, and general-purpose power distribution panels where a lockable, visible-blade disconnect is required by the NEC.

The th3361 is used in commercial and industrial indoor applications where a 3-phase or single-phase branch circuit requires a fused disconnect. Motor load ratings span a range of configurations: at 480 volts AC with time-delay fusing on a 3-phase circuit, the switch is rated for 15 hp. At 600 volts AC with time-delay fusing on a 3-phase circuit, the rating reaches 20 hp. It also carries a 250 Vdc rating of 5 hp. Typical installations include rooftop HVAC units, air handlers, pumps, compressors, and other motor-driven equipment requiring a local disconnect point within sight of the load.

Key Features

• 30 amp, 600 volt AC heavy-duty fusible disconnect switch
• 3-pole, 3-wire configuration for three-phase and single-phase applications
• NEMA 1 indoor enclosure for dry, protected environments
• Accepts fuses for combined overcurrent protection and disconnection
• Wire range accepts 12 AWG through 2 AWG copper or aluminum conductors
• GSA compliant for eligible government procurement

Compatibility

Designed as an OEM-style heavy-duty fusible disconnect for indoor branch circuit applications requiring a 30 amp, 3-pole, 600 volt AC rated switch with a NEMA 1 enclosure.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the upstream circuit and verify zero voltage with a calibrated meter before beginning work. Ensure the enclosure is mounted in a dry, indoor location consistent with NEMA 1 ratings. Do not use this enclosure in wet, damp, or outdoor environments without an appropriately rated housing.

Technical Specifications

• Voltage: 600 volts AC
• Amperage: 30 amps
• Poles: 3
• Wires: 3
• Fusing: Fusible
• Enclosure: NEMA 1 (Indoor)
• Wire Range (Cu/Al): 12 AWG to 2 AWG
• Motor Rating - 240 Vac, Time Delay, 3-phase: 7.5 hp
• Motor Rating - 480 Vac, NEC Standard, 1-phase: 3 hp
• Motor Rating - 480 Vac, NEC Standard, 3-phase: 5 hp
• Motor Rating - 480 Vac, Time Delay, 1-phase: 7.5 hp
• Motor Rating - 480 Vac, Time Delay, 3-phase: 15 hp
• Motor Rating - 600 Vac, NEC Standard, 1-phase: 3 hp
• Motor Rating - 600 Vac, NEC Standard, 3-phase: 7.5 hp
• Motor Rating - 600 Vac, Time Delay, 1-phase: 10 hp
• Motor Rating - 600 Vac, Time Delay, 3-phase: 20 hp
• Motor Rating - 250 Vdc: 5 hp
• GSA Compliance: Yes

Standard Information

• Brand: ABB
• Manufacturer Part Number: th3361