Eaton CB4033B120480GRAR Pringle bolted pressure contact switch - UL Listed
Part Number: CB4033B120480GRAR
Quick Summary
The Eaton pringle bolted pressure contact switch is a high-current protection device for industrial switchgear and motor control centers. Nuisance trips and delayed fault indication can cripple maintenance schedules and increase downtime. UL Listed certification confirms safety compliance, while the unit's NEMA ratings support use in a variety of enclosure environments. Optional Ground Fault Relay and capacitor-trip SPVR enhance protection without complicating installation, and the 120 V control voltage pairs with 480 V system voltage for compatibility in low-voltage power distribution and control panels.
Product Information
Extended Description
CB4033B120480GRAR Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with thre off lights (trips switch),4000A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480GRAR
UPC
782116899487
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.
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
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
Single-phase voltage relay with capacitor trip device (SPVR), BFD with thre normally off lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B120480GRAR
Selling Policy 25-000 - Distribution and Control Products and Services
Amperage rating of 4000A and a 480V system voltage deliver rugged protection for main feeders in switchgear and motor control centers, reducing equipment damage and unplanned downtime. Three-pole bottom-feed design with fusible protection simplifies wiring and enhances reliability in MCCs and control panels. The switch features an Electrical trip with a charge-before-close mechanism, improving selectivity and safety during hot-switching operations in demanding environments. The capacitor trip device (SPVR) enables faster fault clearance, which lowers arc-flash risk and maintenance costs while improving system availability. Ground fault protection options and auxiliary contact provisions support quick fault isolation and streamlined maintenance workflows in complex power distribution networks. UL Listed certification and compatible NEMA ratings ensure installation flexibility across industrial enclosures, while the rugged construction supports long service life in harsh environments. This combination of features aligns with long-term reliability goals, reduces total cost of ownership, and meets industry expectations for low-voltage power distribution and industrial control panels.
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FAQs
CB4033B120480GRAR uses a bottom-feed configuration and three-wire connections for 480 V systems with 120 V control power. When installing, confirm enclosure compatibility with the unit’s 22.5 in length, 32 in height, and 40 in width. Ensure proper lugs, wiring routes, and clearances, and reference Eaton’s installation notes and the specification sheet for SPVR wiring and auxiliary contact provisions.
The device is rated for 4000A and 480V, with fusible protection and a three-pole configuration. It includes an electrical trip with a charge-before-close mechanism and an SPVR capacitor trip device. NEMA 1, 3R, 4, and 12 enclosure compatibility and optional ground fault protection support robust performance in varied industrial environments.
Yes. The CB4033B120480GRAR supports optional Ground Fault Relay configurations and includes a ground fault with a control power transformer, enabling enhanced protection in motor control centers. Verify compatibility with your MCC design and ensure proper field wiring for protection relays and auxiliary contacts.
The switch is UL Listed, indicating compliance with recognized safety standards. Its enclosure options align with multiple NEMA ratings (1, 3R, 4, 12) to suit different installation environments. When planning compliance, reference Eaton’s specification sheet for detailed standards and any product-specific certifications.
Eaton offers a warranty under Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever comes first. For details, consult the policy PDF. Customer support and technical resources, including datasheets and auxiliary documents, are available to assist with installation, maintenance, and long-term service planning.