Eaton CB3033T120480KRARCT - Bolted pressure switch UL Listed

Part Number: CB3033T120480KRARCT
Manufacturer
Eaton
Part number
CB3033T120480KRARCT

Quick Summary

The Eaton CB3033T120480KRARCT bolted pressure switch is a robust solution for industrial control panels requiring high-current protection. This device provides reliable three-pole operation with a capacitor-trip device and interlock features to prevent accidental shutdowns. Engineers often struggle with coordinating fast trip times, dependable fault detection, and straightforward integration with existing switchgear. UL Listed certification supports safety compliance, while NEMA enclosure ratings guide enclosure compatibility in challenging environments. Designed for top-feed wiring and 480 V system voltage, it also supports a 120 V control circuit, 3000 A current rating, and optional ground-fault protection. By pairing this switch with Kirk provisions and auxiliary contacts, maintenance windows shrink and system uptime improves for critical processes.

Product Information

Extended Description

CB3033T120480KRARCT Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),,3000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480KRARCT
UPC
782116950911
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, single-phase voltage relay with capacitor trip device (SPVR), BFD with three normally off lights (trips switch), with control power transformer
Feature: High current rating of 3000 A enables protection of large feeders and main buses, reducing the risk of catastrophic faults. Business impact: Extends equipment life and improves uptime by handling peak loads without nuisance trips. Application: Large industrial panels and distribution centers requiring robust interlock and fault protection. Feature: 480 V system voltage with 120 V control voltage integrates easily into standard industrial power architectures. Business impact: Simplifies procurement and wiring, lowering install time and labor costs. Application: Industrial machines and switchgear assemblies operating at 480 V three-phase power. Feature: Three-pole, three-wire, top-feed configuration streamlines wiring topology and fault clearance path. Business impact: Improves reliability and simplifies wiring diagrams, aiding maintenance and testing. Application: Front-end feeders in control panels and motor control centers. Feature: Fusible protection with optional ground-fault relay and SPVR trip device provides precise, selective coordination. Business impact: Reduces outage scope and enhances personnel safety. Application: Critical process lines with strict fault isolation requirements. Feature: Interlock, auxiliary contact provisions, and available Kirk provisions support extensible control schemes. Business impact: Facilitates safe shutdown sequences and integration with existing control logic. Application: Safety interlocks and auxiliary signaling in complex automation environments. Feature: Compliance and ruggedness evidenced by UL Listed status and NEMA-compatible enclosure performance. Business impact: Accelerates regulatory approval and ensures dependable operation in harsh environments. Application: Industrial enclosures and harsh factory floors where reliability matters most.

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FAQs

For installation in existing Eaton switchgear, plan for a top-feed arrangement and three-pole, three-wire wiring. Confirm clearance for the 22- to 40-inch footprint and ensure compatible control-power transformer options are available. Leverage auxiliary contact provisions and Kirk provisions where needed to align with current control logic and safety interlocks. UL Listed components simplify compliance during retrofits.
The device delivers fusible protection with a capacitor trip device (SPVR), interlock, and BFD indicators to signal trips. Optional ground-fault relay adds fast fault detection, while three-pole, three-wire construction ensures balanced protection across phases. This combination improves selective coordination, reduces cross-trip risks, and enhances safety in motor control and processor-driven environments.
Yes, CB3033T120480KRARCT is explicitly designed for 480V systems with a 120V control circuit. It features a top-feed fuse configuration and three-pole, three-wire wiring, simplifying installation in 3-phase switchgear and reducing wiring complexity while enabling straightforward fault isolation.
The CB3033T120480KRARCT carries UL Listed certification, which validates adherence to safety standards for electrical devices. This certification supports code compliance during installation in commercial and industrial facilities. While other certifications are not listed in the data, UL Listed status is a strong indicator of reliability and safety for critical power distribution applications.
The switch is built for robustness, with a 390 lb footprint and durable construction suitable for challenging environments, reducing maintenance cycles. It carries Eaton's 1-year warranty from installation or 18 months from shipment, whichever occurs first, providing protection against early failures and a defined ROI window for reliability investments in critical processes.