Eaton CB3033T120480K Pringle bolted pressure contact switch - UL Listed
Part Number: CB3033T120480K
Quick Summary
Eaton CB3033T120480K bolted pressure contact switch protects high-current circuits in power distribution and motor control. Engineers often face unreliable interlocks and nuisance trips that slow startups and risk equipment damage; this unit delivers robust interlock capability with fusible protection to enhance safety and uptime. UL Listed certification supports electrical safety compliance, while its three-pole design, 480 V system voltage, and 3000 A rating meet demanding industrial requirements. Designed for top-feed configurations and compatible with Eaton switching devices, it streamlines installation, reduces wiring complexity, and lowers total cost of ownership. Optional ground fault relay and auxiliary contact provisions expand protection and monitoring for controlled environments.
Product Information
Extended Description
CB3033T120480K Eaton: Eaton pringle bolted pressure contact switch,Interlock,3000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480K
UPC
782116899425
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
No ground fault
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
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 - CB3033T120480K
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: High current capacity and fusible protection provide durable fault handling and arc suppression in large switchgear. Business Impact: Minimizes unplanned downtime and equipment damage, enabling safer shutdowns during faults. Application: Suitable for motor control centers and distribution panels in heavy industry. Feature: Interlock with charge-before-close mechanism enhances operator safety during start-up and maintenance. Business Impact: Reduces arc flash risk and secures sequencing in automated lines. Application: Industrial automation environments with strict safety protocols. Feature: Top-feed fuse configuration and three-pole design deliver versatile wiring and reliable protection. Business Impact: Simplifies panel layout and supports scalable protection schemes. Application: New installations or retrofits in harsh environments. Feature: NEMA-rated compatibility (1, 3R, 4, 12) and UL Listed certification ensure compliance and enclosure suitability. Business Impact: Streamlines compliance workflows and accelerates procurement. Application: Indoor and protected outdoor installations within standard enclosures. Feature: Clear specifications and optional features (Ground Fault Relay, Blown Fuse Detection, Auxiliary Contacts) enable tailored protection. Business Impact: Reduces lifecycle cost by matching protection to the exact risk profile. Application: Customized safety and monitoring in critical power systems. Feature: Dimensional and weight data (22.5 in D, 28 in H, 40 in W, 390 lb) support accurate enclosure planning. Business Impact: Improves installation accuracy and reduces site surprises. Application: Control panels and switchgear housings with precise space planning.
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FAQs
Plan for a top-feed fuse configuration with a three-pole, three-wire setup and ensure the enclosure supports NEMA 1, 3R, 4, 12 ratings. Verify interlock alignment and arrange optional grounding or auxiliary contacts to meet safety and monitoring requirements.
Amperage rating is 3000A, control voltage is 120 V, and system voltage is 480 V. The unit supports fusible protection and is rated for NEMA 1, 3R, 4, 12 enclosures, with top-feed configuration and three-pole operation.
Its NEMA ratings (1, 3R, 4, 12) indicate suitability for indoor and protected outdoor enclosures. For exposed outdoor conditions, use a weatherproof enclosure and follow installation guidelines to maintain protection levels.
Purchase-ready resources include the Eaton specification sheet, product catalogs, and installation videos. Key documents cover general specifications, wiring practices, and optional features like ground fault relay and auxiliary contact provisions.
Options include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions, enabling tailored protection schemes and expanded monitoring for complex power systems.