Eaton CB4033T120480KG7 Pringle bolted switch - UL Listed
Part Number: CB4033T120480KG7
Quick Summary
Eaton CB4033T120480KG7 is a bolted pressure contact switch for heavy-duty control in industrial power distribution. Engineers confront challenges with reliable interlocks, ground fault detection, and fuse protection in high-current feeders. UL Listed certification paired with rugged NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 enclosures ensures safety and code compliance in harsh environments. In practice, this unit supports a 480 V system with a 120 V control circuit, top-feed configuration, and interlock capability, streamlining installation. The result is faster panel assemblies, reduced downtime, and improved traceability for safety and compliance programs. Used in switchgear and motor-control centers, it integrates with standard Eaton switching devices catalog ecosystems for scalable automation.
Product Information
Extended Description
CB4033T120480KG7 Eaton: Eaton pringle bolted pressure contact switch,Interlock,4000A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480KG7
UPC
782116899609
Product Length/Depth
17 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
4000A
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB4033T120480KG7
Feature: 4000A amperage rating provides capability for extreme load conditions. Business Impact: Enables single-switch control of high-current feeders, reducing the need for parallel switching and lowering wiring complexity. Application: Main switch in switchgear and large motor-control centers. This translates to measurable efficiency gains and lower total cost of ownership in industrial power distribution equipment. Feature: 2NO-2NC contact configuration offers flexible control logic. Business Impact: Supports safety interlock sequences and varied control schemes without added hardware. Application: Safety-rated start/stop and auxiliary control in automation panels. This improves commissioning speed and reduces mis-wiring risk during installation.Feature: Top feed and fusible protection simplify wiring and arc-fault mitigation. Business Impact: Streamlines bus-routing in compact enclosures while providing rapid fault isolation. Application: Front-entry panelboards and compact switchgear assemblies. This reduces maintenance time and improves uptime for critical processes.Feature: Ground fault with control power transformer enhances safety and fault detection. Business Impact: Improves protection against ground faults in high-impedance networks and minimizes nuisance trips. Application: Data centers, processing lines, and critical manufacturing lines requiring robust safety interlock. This supports regulatory compliance and safer operation across plants.Feature: Interlock and auxiliary contact provisions extend safety and sequencing capabilities. Business Impact: Enables precise control of shutoff sequences, improving operator safety and simplifying code-compliant installation. Application: Industries with strict lockout/tagout procedures and complex machine safety logic. This aligns with best practices in industrial automation and switchgear maintenance.Feature: UL Listed with rugged NEMA ratings (1, 3R, 4, 12) ensures compliance and durability. Business Impact: Reduces engineering risk, accelerates audits, and supports code-compliant installations in challenging environments. Application: Plant-wide power distribution, electrical rooms, and outdoor or damp locations. This strengthens warranties and client confidence in system reliability.
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FAQs
CB4033T120480KG7 is rated for 4000A with a 480V system voltage and a 120V control circuit. It features a three-pole arrangement with 2NO-2NC contacts, top feed, and fusible protection. The unit supports ground fault options and interlock provisions, making it suitable for demanding switchgear and motor control center applications in harsh environments.
Yes, the CB4033T120480KG7 carries UL Listed certification. It supports ground fault protection configurations and can be integrated with ground fault relays or protection transformers to enhance safety in high-current installations, reducing risk of shock or arc faults in critical power paths.
Ideal for switchgear, motor control centers, and industrial automation panels, the CB4033T120480KG7 handles heavy loads with top-feed, fusible protection, and interlock options. It is well-suited for environments requiring robust protection (NEMA-rated enclosures) and reliable control circuitry in manufacturing, processing, and data-center facilities.
Installers should plan for top-feed wiring and verify compatibility with 480V power buses and 120V control circuits. The 2NO-2NC configuration enables safe sequencing, while optional ground fault relay compatibility and auxiliary provisions support enhanced safety and diagnostic capabilities. Ensure compliance with NEMA ratings and UL guidelines during assembly and commissioning.
The unit adheres to Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever comes first. For maintenance, routinely inspect interlock mechanisms, test ground fault protection circuits, and verify fusible protection devices to sustain reliability and minimize downtime in critical power paths.