Eaton CB3033T120480KGAO Pringle bolted pressure contact switch - UL Listed
Part Number: CB3033T120480KGAO
Quick Summary
Eaton CB3033T120480KGAO is a high-capacity pringle bolted pressure contact switch used in industrial switchgear for heavy-duty motor control. Operators contend with unreliable protection and nuisance trips in harsh environments, which can drive unplanned downtime and maintenance costs. UL Listed safety certification plus broad NEMA ratings (1, 3R, 4, 12) support reliable installation across enclosures and conditions. With top-feed fusible protection and optional ground-fault relay and auxiliary provisions, this solution boosts uptime, enhances fault detection, and aligns with regulatory requirements in modern plant automation.
Product Information
Extended Description
CB3033T120480KGAO Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with three off lights (does not trip),3000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480KGAO
UPC
782116950867
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.
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)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033T120480KGAO
Feature: 3000A amperage rating with 120 V control and 480 V system voltage in a three-pole bolted pressure contact switch. Business Impact: supports high-current motor starters and reduces the need for staged protection devices, improving panel density and reliability. Application: suitable for large motor drives in manufacturing lines and process equipment where rugged switching and quick fault-clearance are essential. Feature: Interlock functionality and a fuse-centric protection model with a Blown Fuse Detection (BFD) and three normally off indicator lights. Business Impact: provides clear, non-trip status signaling to operators and maintenance staff, lowering troubleshooting time and risk of unintended trips. Application: critical safety circuits in automated packaging or conveying systems where visibility matters. Feature: Ground fault with control power transformer and top-feed configuration; system supports 480 V three-phase service with top-entry wiring. Business Impact: enhances safety and fault detection in harsh industrial environments, reducing shock risk and facilitating safe maintenance. Application: distribution panels in heavy machinery and process lines. Feature: Optional accessories including Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. Business Impact: enables tailored protection schemes that meet code requirements and customer specifications, lowering total cost of ownership. Application: configurable protection in diverse plant setups such as chemical processing or metals fabrication. Feature: Broad NEMA compatibility (NEMA 1, 3R, 4, 12) and UL Listed certification. Business Impact: provides installation flexibility across indoor and outdoor environments while maintaining safety standards. Application: retrofit/add-on use in existing switchgear and new installations where environmental resilience matters.
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FAQs
This switch uses a top-feed configuration with three-pole, three-wire wiring and fusible protection. It supports optional features such as Ground Fault Relay, Blown Fuse Detection, and Kirk/Auxiliary contact provisions, enabling compact, safe installation in existing panels or new switchgear with space-efficient wiring and straightforward field upgrades.
The CB3033T120480KGAO is rated for 3000 A with a control voltage of 120 V and a system voltage of 480 V. It features a three-pole configuration and is suitable for 480 V three-phase service, with NEMA ratings supporting indoor and outdoor environments where protection is required.
Yes. The unit is UL Listed and offers broad NEMA compatibility (1, 3R, 4, 12), enabling installation in a range of environments from clean rooms to more demanding, weather-exposed applications when properly enclosed.
Warranty terms follow Eaton policy 25-000: one year from installation or 18 months from shipment, whichever occurs first. Regular maintenance should focus on inspecting interlock integrity, checking ground fault and fuse-status indicators, and verifying auxiliary contacts and provisions remain functional for continued reliable protection.
Optional features include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These enable tailored protection schemes, improved fault visibility, and compliance with site-specific safety standards in industries such as manufacturing and process automation.