Eaton CB3033T120480GRAX Bolted Pressure Switch - UL

Part Number: CB3033T120480GRAX
Manufacturer
Eaton
Part number
CB3033T120480GRAX

Quick Summary

Eaton CB3033T120480GRAX is a bolted pressure switch for high-current fault protection in industrial power systems. It addresses nuisance trips and complex protection schemes that slow maintenance and uptime. UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures, it fits a wide range of installations. The top-feed, three-pole design eases wiring in crowded switchgear, MCCs, and distribution panels. Built for Eaton switching devices ecosystems, it supports fuse configurations and auxiliary provisions to reduce downtime and lower total cost of ownership while meeting rigorous protection standards.

Product Information

Extended Description

CB3033T120480GRAX Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),3000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480GRAX
UPC
782116899418
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
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
Single-phase voltage relay with capacitor trip device (SPVR), BFD with no lights (trips switch)
Three-pole design with top feed simplifies wiring and reduces install time in dense switchgear. This improves field reliability by minimizing wiring errors and misconnections, lowering commissioning costs. Applicable to switchgear, motor control centers, and distribution panels in manufacturing plants and data centers. Single-phase voltage relay with capacitor trip device (SPVR) and blown fuse detection (BFD) with no lights trips switches quickly on fault conditions. The business impact is faster fault clearance, reduced equipment damage, and less unplanned downtime, enabling smoother production ramps and safer plant start-ups. Perfect for power distribution panels and MCCs where fast protection improves overall line efficiency. Ground fault protection option with control power transformer provides selective tripping and enhanced personnel safety. This feature minimizes collateral outages in multi-branch circuits and supports compliance with modern ground-fault protection schemes. Ideal for critical loads in manufacturing lines and data centers where uninterrupted power is essential. Fusible protection for 480 V systems with a 3000 A rating delivers robust short-circuit clearing and coordinated protection with upstream devices. This reduces fuse-related nuisance trips and extends auxiliary contact life, translating to lower maintenance costs and longer intervals between service visits in industrial plants. NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 compatibility ensures installation in varied environments and enclosures. The switch is UL Listed and designed to integrate with Kirk provisions and auxiliary contact provisions, improving compatibility with existing control schemes and adding future-proofing for upgrade projects.

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FAQs

Install the CB3033T120480GRAX using the top-feed configuration to simplify wiring and reduce panel depth. Ensure secure connection of the three poles to corresponding input terminals, mount to a UL-listed enclosure per NEMA 1/3R/4/12 ratings, and integrate with optional auxiliary contacts as required. Verify capacitor trip device wiring and shielded ground faults are properly connected to the control transformer if used. This setup minimizes field errors and accelerates commissioning while maintaining safe operation.
The unit provides 3000 A amperage rating with system voltage of 480 V and control voltage of 120 V. It uses a fusible protection scheme and includes a single-phase voltage relay with capacitor trip device (SPVR). Ground fault protection can be added with a control power transformer. These features deliver fast fault clearance, reduced arc energy risk, and improved protection coordination in high-current distributions.
Yes. With three-pole, three-wire configuration and top-feed accessibility, CB3033T120480GRAX is well-suited for motor control centers and switchgear assemblies. Its NEMA compatibility (1, 3R, 4, 12) supports diverse environments, while UL Listing confirms compliance with safety standards. Optional ground fault and auxiliary provisions further enhance reliability in MCCs and distribution panels.
CB3033T120480GRAX is UL Listed, ensuring compliance with recognized safety standards. It also aligns with NEMA enclosure ratings (1, 3R, 4, 12), supporting installation across varied environmental conditions. Optional features like Ground Fault Relay and auxiliary provisions help meet advanced protection schemes in regulated facilities.
The SPVR with capacitor trip device reduces nuisance trips, shortening downtime and maintenance cycles. Top-feed wiring and three-pole design simplify installation and future upgrades, lowering commissioning costs. Durable fusible protection and UL/NEMA compatibility translate to longer intervals between service visits and improved system reliability in high-demand industrial processes.