Eaton CB3033B120480R7 Bolted Pressure Switch - UL Listed

Part Number: CB3033B120480R7
CB3033B120480R7
Manufacturer
Eaton
Part number
CB3033B120480R7
Category

Quick Summary

Eaton CB3033B120480R7 bolted pressure contact switch protects high-current switchgear in industrial power networks. This design addresses the common challenge of coordinating protective relays with reliable trip devices in demanding environments. UL Listed certification and robust NEMA-enclosure compatibility (NEMA 1, 3R, 4, 12) ensure compliance and reliability across diverse installations. The solution pairs a high amperage rating with a compact control voltage, delivering safety, efficiency, and operational continuity. For engineers and procurement teams, this switch offers a clear path to improved uptime and predictable maintenance costs while supporting integration with existing protection schemes and auxiliary provisions.

Product Information

Extended Description

CB3033B120480R7 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),3000A,2NO-2NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480R7
UPC
782116951772
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
2 NO-2 NC
Feed type
Bottom
Fuse configuration
Bottom 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
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 - CB3033B120480R7
Feature: 3000 A amperage rating with a 120 V control voltage and 480 V system voltage. Business Impact: Enables direct protection of large motor feeders and heavy loads with a single device, reducing the footprint of protection gear while increasing reliability. Application: Main feeders in power distribution panels and switchgear assemblies. Long-tail keywords: high-current protection, motor feeder protection, 120 V control, 480 V system voltage. Feature → Business Impact → Application.Feature: 2 NO-2 NC contact configuration in a three-pole enclosure. Business Impact: Flexible control logic supports diverse interlocking and signaling schemes, improving safety margins and fault isolation. Application: Complex control circuits in industrial automation and power distribution. Long-tail keywords: 2NO-2NC contacts, three-pole switch, electrical trip with charge-before-close. Feature → Business Impact → Application.Feature: SPVR capacitor trip device for single-phase protection. Business Impact: Faster, capacitor-assisted tripping improves nuisance-trip resistance and equipment protection, lowering unplanned downtime. Application: Motors and feeders requiring quick fault clearance. Long-tail keywords: capacitor trip device, SPVR protection, single-phase protection. Feature → Business Impact → Application.Feature: Bottom feed, fusible configuration with ground-fault options (optional). Business Impact: Simplifies panel wiring and enables downstream protection choices, reducing installation time and wiring errors. Application: Panel design with bottom-fed fuse protection and optional ground fault relay. Long-tail keywords: bottom feed, fusible protection, optional ground fault relay. Feature → Business Impact → Application.Feature: Rugged enclosure compatibility with NEMA ratings and UL Listed certification. Business Impact: Broad environmental suitability supports installation in varied environments, enhancing compliance and lifecycle cost efficiency. Application: Industrial control panels, switchgear rooms, and outdoor-rated enclosures. Long-tail keywords: NEMA ratings, UL Listed protection, rugged industrial switchgear. Feature → Business Impact → Application.Feature: Optional auxiliary and Kirk provisions support. Business Impact: Easier integration with auxiliary contacts and mechanical interlocks, improving safety interlocks and signaling reliability. Application: Advanced control architectures and interlock schemes. Long-tail keywords: auxiliary contact provisions, Kirk provisions, interlock compatibility. Feature → Business Impact → Application.

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FAQs

Install the CB3033B120480R7 in a three-pole enclosure with bottom-feed wiring, ensuring alignment with 2 NO-2 NC contact configuration and fusible protection. Use the UL Listed device within NEMA-rated environments (1, 3R, 4, 12) to meet ambient and enclosure requirements. Verify wiring to support SPVR protection and optional auxiliary contacts as needed for interlocks.
The switch supports up to 3000 A amperage, with a 120 V control voltage and a 480 V system voltage. It uses a 2 NO-2 NC contact configuration across three poles, is fusible, and includes a single-phase capacitor trip device (SPVR) for enhanced protection in single-phase scenarios.
Ideal for high-current switchgear, motor feeders, and power distribution panels where reliable protection, fast tripping, and flexible interlocking are critical. Its SPVR device and three-pole configuration support robust protection schemes in industrial plants, manufacturing lines, and processing facilities.
UL Listed certification ensures standard compliance for electrical protection devices. The device is suitable for environments conforming to NEMA ratings 1, 3R, 4, and 12, enabling use in a range of indoor and outdoor industrial settings with varying exposure.
Warranty follows Eaton policy: 1 year from installation or 18 months from shipment, whichever comes first. For maintenance, monitor fuse status and SPVR operation, verify ground fault and auxiliary features when installed, and schedule periodic checks in accordance with your site's protection scheme and preventive maintenance plan.