Eaton CB2033B120480K bolted pressure contact switch - UL
Part Number: CB2033B120480K
Quick Summary
Eaton pringle bolted pressure contact switch protects large 3-phase circuits in industrial power systems. Engineers face downtime and complex protection schemes when high-current devices are hard to install or specify correctly. UL Listed certification plus compatible NEMA 1, 3R, 4, and 12 ratings help ensure safe operation and regulatory compliance. With optional ground-fault relay, interlock features, and auxiliary contacts, this switch integrates smoothly into Eaton switchgear, delivering reliability and cost savings for manufacturing facilities. Its 120 V control voltage and 480 V system compatibility provide flexible sourcing for new builds and retrofits. Overall, the robust design supports continuous operation, reduces downtime, and improves protection across power-distribution and automation workflows.
Product Information
Extended Description
CB2033B120480K Eaton: Eaton pringle bolted pressure contact switch,Interlock,2000A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2033B120480K
UPC
782116898992
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
200 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
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
2000A
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
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB2033B120480K
The CB2033B120480K delivers a 2000 A amperage rating and a 480 V system voltage with a 120 V control input, enabling reliable isolation of high-current loads. This means reduced arc energy, longer motor life, and safer startup sequences across enterprise-scale panels. It is ideal for motor control centers, large drives, and line-side protection in industrial automation environments. The three-pole, bottom-feed configuration with fusible protection simplifies wiring and maintenance, lowering installation time and reducing field wiring errors. In practice, technicians appreciate clean, bottom-feed terminations that align with standard enclosure layouts in metal fabrication plants and processing facilities. Optional Ground Fault Relay, blown fuse detection, auxiliary contact provisions, and Kirk provisions provide flexible protection suites without replacing the base switch, translating to faster diagnostics and safer shutdowns. UL Listed status and NEMA ratings offer regulatory confidence and operability in varied environments—from dust-prone to damp locations. End users can document conformance quickly for audits and avoid costly substitutions during installs. The rugged enclosure footprint and 200 lb weight, while demanding, enable durable protection in industrial spaces, with compatibility to Eaton switching devices and grounds. Installation is facilitated by bottom-feed fuse configurations and standard 3-wire, 3-pole connections, supporting fast retrofits and scalable protection strategies. The product’s warranty and catalog notes provide assurance for life-cycle planning, reducing downtime and maintenance costs over the system’s life.
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FAQs
CB2033B120480K is designed for bottom-feed, three-wire, three-pole installation to simplify wiring within large enclosures. Ensure mounting space matches the 16 inch by 24 inch by 32 inch footprint and allow clearance for 2000A conductors and the charge-before-close mechanism. Use the optional ground fault relay and auxiliary contacts per catalog notes to extend protection. Verify UL Listed compliance and follow safety procedures during installation to minimize arc flash risk.
CB2033B120480K supports a 2000A amperage rating with a 480V system voltage and a 120V control voltage. It uses a bottom-feed fuse configuration and offers an interlock option for safer closure sequencing. This combination provides reliable isolation of high-current loads and straightforward integration with Eaton switchgear families, reducing design and wiring complexity.
Yes. The device is compatible with NEMA ratings including NEMA 1, 3R, 4, and 12, making it suitable for indoor, outdoor, and damp environments. The 480V system voltage and 2000A rating support large industrial installations, while UL Listed certification aids in meeting safety and compliance requirements for industrial facilities.
CB2033B120480K carries UL Listed certification, indicating conformance to recognized safety standards for electrical equipment. This certification supports regulatory compliance during audits and inspections, simplifies documentation for plant upgrades, and aligns with broader Eaton switchgear families to ensure consistent safety performance across installations.
The switch consolidates high-current protection into a single, documented package, reducing spare parts and maintenance overhead. Features such as interlock, blown fuse detection, and auxiliary contacts speed fault diagnostics and safe shutdowns, lowering mean time to repair (MTTR). Over the system life, this translates to improved uptime and a lower total cost of ownership in large power-distribution infrastructures.