HNB3900T - Westinghouse 900A 600V 3-Pole NB Frame Circuit Breaker with AB De-Ion Trip Unit and Shunt Trip

HNB3900T

HNB3900T is a Westinghouse 900 Amp, 600 Volt, 3-pole circuit breaker designed for NB frame applications with an AB De-Ion trip unit and shunt trip feature.This circuit breaker features a 900 Amp normal rating, 3 poles, and a 600 Volt AC rating, suitable for heavy-duty power distribution. It includes a shunt trip rated for 120 Volts AC and 49 Volts DC, with a magnetic trip adjustment range of 4000-8000 Amps. The breaker is bolt-on mounted and comes with installation bolts. It weighs approximately 8 lbs and has compact trip unit dimensions of 5" x 7.5" x 6". This breaker is UL listed and designed for reliable circuit protection in industrial environments.

Key Specifications
• Amperage: 900 Amps
• Voltage: 600 Volts AC
• Poles: 3
• Frame: NB Frame
• Trip Unit: AB De-Ion Trip Unit
• Shunt Trip Voltage: 120V AC / 49V DC
• Mounting Type: Bolt-on
• Interrupt Rating: Not explicitly specified, typical for NB frame
• Magnetic Trip Adjustment: 4000-8000 Amps
• Weight: Approx. 8 lbs
• Dimensions (Trip Unit): 5" x 7.5" x 6"
• Certifications: UL Listed

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Specifications

• Part Number: HNB3900T
• Manufacturer : Westinghouse
• Brand : Cutler Hammer
• Category : Circuit Breaker
• Item Subcategory : Trip Units & Programmers
• Family : MARK 75
• Type : HNB
• Voltage : 600
• Poles : 3
• Functions : LI - Long-Time and Instantaneous
• Amperage Maximum : 900
• Amperage Minimum : 900
• Protection : Thermal Magnetic
• Compatible Frames : NB,HNB,NBY

Product Data

• UPC : 786679192566
• GTIN : 00786679192566
• Dimensions : 18 in x 17.1 in x 10.5 in (Length/Depth x Height x Width)
• Weight : 26