Eaton CB3033B120480KGR5 Bolted Pressure Switch - UL Listed
Part Number: CB3033B120480KGR5
Quick Summary
The Eaton CB3033B120480KGR5 Bolted Pressure Switch provides reliable interlock and fault protection for high-current low-voltage panels. This solution addresses the common challenge of ensuring fast, dependable tripping under heavy loads and complex fault conditions. With UL Listed certification, robust NEMA ratings, and a ground-fault capable design, it meets regulatory and safety requirements while supporting streamlined maintenance. By combining a 3-pole, 1NO-1NC configuration with a bottom-feed, fusible protection scheme, it delivers dependable operation in demanding environments. The result is safer panels, reduced downtime, and easier integration with existing Eaton or third-party switchgear.
Product Information
Extended Description
CB3033B120480KGR5 Eaton: Eaton pringle bolted pressure contact switch,Interlock, Single-phase relay with capacitor trip device (SPVR),3000A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480KGR5
UPC
782116951505
Product Length/Depth
22.5 in
Product Height
32 in
Product Width
40 in
Product Weight
430 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
1 NO-1 NC
Feed type
Bottom
Fuse configuration
Bottom 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, Single-phase voltage relay with capacitor trip device (SPVR)
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 - CB3033B120480KGR5
Selling Policy 25-000 - Distribution and Control Products and Services
High amperage protection enables direct feeder and motor protection with a 3000A rating, reducing the need for additional fusing downstream and delivering measurable downtime reductions in heavy-usage facilities. Business impact: improved reliability and lower total cost of ownership. Application: large HVAC, pumping, and process lines where peak currents approach system limits. Three-pole, 1NO-1NC configuration provides flexible control logic and interlock possibilities, enabling optimized sequencing and safer start-up. Business impact: minimized risk of simultaneous contact closure and accidental energization. Application: motor starters and process lines requiring precise control and safety interlocks. Bottom feed and fusible design simplify wiring and enable straightforward replacement in legacy panels. Business impact: faster installation and simplified maintenance. Application: retrofit projects in existing switchgear where bottom-feed devices are standard. NEMA ratings of 1, 3R, 4, and 12 ensure reliable enclosure performance in a range of environments, from dusty factory floors to outdoors under cover. Business impact: compliance with enclosure standards and reduced corrosion or ingress risk. Application: harsh industrial environments and outdoor-rated panels. Optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contact Provisions offer scalable protection without replacing the core switch. Business impact: modular upgrades, improved diagnostic capability, and extended protection coverage. Application: expanding safety schemes in critical power distribution with Kirk provisions when needed.
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FAQs
For installation, plan bottom-feed wiring and 3-pole wiring with 1NO-1NC contacts. Ensure proper enclosure space for 32 inch height, 40 inch width, and 22.5 inch depth as specified. Use configurable auxiliary provisions if needed, and verify UL Listed compliance and ground fault options prior to mounting.
The switch is rated for 3000A with 480V system voltage and 120V control voltage. It provides fusible protection with SPVR options and supports NEMA 1, 3R, 4, and 12 enclosures, making it suitable for demanding industrial environments and varied installation conditions.
Yes. It features interlock with capacitor trip device (SPVR) and is designed for single-phase protection. The three-pole, 1NO-1NC configuration and bottom-feed design support safe, reliable operation in high-current switchgear and motor control centers.
The part is UL Listed, indicating compliance with recognized safety standards. It comes with Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, providing protection against manufacturing defects.
Catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These can be added to extend protection coverage and diagnostics, with availability indicating compatibility with the CB3033B120480KGR5 platform.