Eaton CB3033T120480KGAO7 Bolted pressure switch UL Listed

Part Number: CB3033T120480KGAO7
Manufacturer
Eaton
Part number
CB3033T120480KGAO7

Quick Summary

The Eaton pringle bolted pressure contact switch provides high-current protection for industrial power distribution. It helps prevent unexpected outages by delivering reliable fault interlock and controlled energization in demanding environments. Key standards support safe installation and operation, including UL Listed certification and enclosure compatibility with NEMA 1, 3R, 4, and 12. This combination delivers business value through safer electrical work practices, streamlined control wiring, and robust protection for motors and feeders in complex plant layouts. For engineers and procurement teams, it translates to lower risk, predictable maintenance, and faster commissioning of high-power switching equipment.

Product Information

Extended Description

CB3033T120480KGAO7 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with three off lights (does not trip),3000A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480KGAO7
UPC
782116950874
Product Length/Depth
22.5 in
Product Height
28 in
Product Width
40 in
Product Weight
390 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Catalog Notes
OPTIONAL Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, Auxiliary Contact Provisions, AVAILABLE.
Contact configuration
2 NO-2 NC
Feed type
Top
Fuse configuration
Top feed
Ground
Ground fault with control power transformer
Number Of Poles
Three-pole
Number of wires
3
Switch type
Electrical trip with charge-before-close mechanism
Type
Pringle bolted pressure contact switch
Amperage Rating
3000A
Control voltage
120 V
NEMA rating
NEMA 1, NEMA 3R, NEMA 4, NEMA 12
Protection
Fusible
System voltage
480 V
Voltage - max
480 V
Voltage rating
480 V
Special features
Interlock, BFD with three normally off lights (does not trip)
Feature: Very high amperage rating up to 3000A and 480V system voltage → Business impact: Enables safe switching of large feeders and heavy loads without frequent trips, reducing downtime and rework. Application: Main distribution panels and motor control centers in manufacturing environments. Feature: 2NO-2NC contact configuration with three-pole operation → Business impact: Flexible control and signaling options in complex control schemes, improving fault reporting and interlock functionality. Application: Process lines and machine lines requiring both normally open and normally closed contacts. Feature: Top feed and fusible protection options → Business impact: Simplified wiring and selective protection, aiding compliance with protection coordination standards. Application: Enclosed switchgear where top-fed wiring is preferred. Feature: Ground fault with optional relay and auxiliary contact provisions → Business impact: Enhanced safety and fault detection, reducing incident response time and maintenance costs. Application: Facilities with ground-fault protection requirements and diagnostics needs. Feature: Interlock and three off lights (status indication) → Business impact: Clear machine state visibility, minimizing operator errors and improving changeover safety. Application: Safety interlocks in power distribution and machine safety circuits. Feature: UL Listed certification and rugged NEMA compatibility → Business impact: Regulatory compliance assurance and reliable operation in harsh or outdoor environments. Application: Industrial plants, food and beverage, and chemical processing where enclosure rating and safety certification matter.

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FAQs

Plan for a three-pole, top-fed wiring configuration with fusible protection. Ensure enclosure supports NEMA ratings 1, 3R, 4, and 12 and provide space for auxiliary contacts and optional ground fault relay. Verify control voltage compatibility with 120 V control circuits and confirm interlock operation to prevent closing under fault conditions.
Yes. With a 3000A amperage rating and 480V system voltage, this switch is designed for high-current feeder protection. Use the fusible protection option where protection coordination is required. The 2NO-2NC contact configuration provides flexible signaling for motor starters and protective relays in complex motor control centers.
Ideal for heavy-duty power distribution, process lines, and machine safety circuits that demand reliable interlock and fault protection. It supports top-feed wiring, three-pole operation, and optional ground fault monitoring, making it suitable for plants seeking robust safety interlocks and clear status indication in harsh or outdoor environments.
The CB3033T120480KGAO7 carries UL Listed certification for safety compliance. It is compatible with NEMA-rated enclosures (NEMA 1, 3R, 4, 12), ensuring appropriate enclosure protection in a variety of installation environments.
A one-year warranty from installation (or eighteen months from shipment) supports initial risk reduction. Maintenance focuses on verifying fuse status, testing ground fault options if installed, and periodic inspection of interlock and auxiliary contacts. High-current reliability reduces downtime and extends service life of upstream feeders and motor circuits, delivering measurable operational savings.