Eaton CB3033B120480KG5 Pringle bolted pressure switch - UL Listed
Part Number: CB3033B120480KG5
Quick Summary
The Eaton CB3033B120480KG5 pringle bolted pressure contact switch provides high-current protection for industrial control panels. Engineers often face downtime and unreliable fault protection when switching 480 V loads in demanding environments. UL Listed certification plus compatibility with NEMA enclosure ratings 1, 3R, 4, and 12 help ensure safety, reliability, and regulatory alignment. This solution integrates ground-fault protection and interlock capabilities, supporting simpler wiring, faster commissioning, and safer operation for manufacturing, water treatment, and process automation facilities.
Product Information
Extended Description
CB3033B120480KG5 Eaton: Eaton pringle bolted pressure contact switch,Interlock,3000A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480KG5
UPC
782116951536
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120480KG5
Feature → Business Impact → Application: The switch delivers a 3000A amperage rating and 480 V system voltage, enabling reliable isolation of heavy loads in power distribution panels, reducing upstream device stress and outages in steel, oil & gas, and manufacturing plants. Feature → Business Impact → Application: Its 1 NO-1 NC contact configuration with bottom feed and fusible protection simplifies control wiring and fault isolation, cutting commissioning time and maintenance costs in industrial automation cabinets. Feature → Business Impact → Application: Interlock and charge-before-close mechanisms enhance personnel safety and reduce arcing during startup, ideal for high-current conveyor systems and pumps. Feature → Business Impact → Application: Three-pole design with ground fault options supports compliant protection schemes and auxiliary contacts, ensuring safer, auditable operations in critical processes. Feature → Business Impact → Application: NEMA-rated enclosure compatibility plus UL Listed safety certification provide regulatory confidence and rugged reliability for harsh environments such as mining, water treatment, and heavy machinery.
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FAQs
CB3033B120480KG5 is designed for bottom-fed wiring in three-pole switchgear. When planning installation, ensure the enclosure supports NEMA ratings 1, 3R, 4, and 12 and accommodates a three-wire, 1NO-1NC configuration with fusible protection. Verify control power transformer grounding, interlock mounting, and space for optional ground fault relay; use proper torque specs and safety interlocks during commissioning.
Yes, CB3033B120480KG5 is rated for 480 V systems and three-phase service with a three-pole design. It provides fusible protection, ground fault with a control power transformer option, and an interlock. The 1NO-1NC contacts support control circuits alongside main line protection, simplifying wiring and reducing devices in the enclosure while meeting UL Listed requirements.
Interlock ensures the switching device cannot close while access doors or handles are open, preventing accidental energization. The charge-before-close mechanism verifies proper charging before closing a circuit, reducing arcing and mechanical wear. Together, these features minimize startup shock, protect personnel, and extend contact life in high-current applications.
CB3033B120480KG5 carries UL Listed certification for safety and reliability and is designed for environments meeting NEMA enclosure ratings 1, 3R, 4, and 12. While SIL or CE marks are not listed in the provided data, the device supports standard industrial requirements for US-based installations and is compatible with related protection and control components.
Investing in CB3033B120480KG5 yields ROI through reduced downtime, fewer components, and simplified wiring in high-current panels. Its 3000A rating supports longer operational life between replacements, while UL Listing and rugged enclosures lower maintenance costs and regulatory risk. Organizations typically see faster commissioning, safer operations, and cost savings in maintenance over the product lifetime.