Eaton CB4033T120480KG5 Pringle Bolted Pressure - UL Listed
Part Number: CB4033T120480KG5
Quick Summary
Eaton pringle bolted pressure contact switch provides robust control for large electrical switchgear and motor circuits. When panel downtime is costly, you need a dependable interlock and fault-detection solution that reduces false trips. It carries UL Listed certification and supports common industrial enclosures rated for NEMA 1, 3R, 4, and 12. Designed for 4000A at 480V with a 1NO-1NC configuration, it also offers optional Ground Fault Relay and auxiliary contact provisions. In practice, this enables faster commissioning, safer top-feed installation, and scalable protection for high-current electrical rooms. Its three-pole, top-feed design simplifies wiring, while fusible protection options help align with utility rules and minimize downtime. Extended warranty terms and Eaton technical support further reduce total cost of ownership.
Product Information
Extended Description
CB4033T120480KG5 Eaton: Eaton pringle bolted pressure contact switch,Interlock,4000A,1NO-1NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480KG5
UPC
782116949830
Product Length/Depth
17 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.
Contact configuration
1 NO-1 NC
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
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
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 - CB4033T120480KG5
The CB4033T120480KG5 delivers a structured, field-proven solution for demanding industrial environments. Feature → Business Impact → Application: Pringle bolted pressure contact switch design provides a high-current transfer path, enabling reliable 4000A operation at 480V with a 1NO-1NC configuration, which translates to minimal contact wear and fewer nuisance trips in motor and distribution feeders. Application: Use in heavy-duty switchgear assemblies where top-feed configuration simplifies cabinet wiring and improves serviceability. Feature → Business Impact → Application: Optional Ground Fault Relay and auxiliary contact provisions enhance protection logic and fault diagnostics, reducing unplanned downtime and enabling easier integration with plant safety interlocks in repeatable control systems. Application: Ideal for panel-building teams needing modular protection options and straightforward retrofit capabilities. Feature → Business Impact → Application: UL Listed certification and NEMA-compatible enclosure compatibility (NEMA 1, 3R, 4, 12) provide compliance confidence and safer installations in diverse environments. Application: Suitable for water-impacted or dusty environments where enclosure integrity matters. Feature → Business Impact → Application: Top-feed, fusible protection, and interlock features support fast, safe switching with reduced risk of arc flash events, improving overall plant safety metrics. Application: Beneficial in downstream electrical rooms and utility interfaces where reliability and compliance drive uptime.
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FAQs
What practical steps should engineers take when installing CB4033T120480KG5? Begin with confirming the top-feed orientation and ensuring mounting clearance for a three-pole device. Verify the 1NO-1NC contact configuration aligns with your control circuit, and configure fusible protection or transformer-powered control power as required. Plan for Kirk provisions or aux contacts if needed, and integrate ground fault or interlock options only after enclosure integrity and wiring duct spacing are established. Finally, perform a full functional test to confirm interlock operation and fault-detection logic before commissioning.
CB4033T120480KG5 supports up to 4000A with a 480V system, arranged as a three-pole device with 1NO-1NC contacts. This design minimizes contact resistance and wear under peak load, reducing arcing risk and extending service life in heavy-load feeders. When used with fusible protection, it aligns with standard utility and safety guidelines, while the optional ground fault and auxiliary provisions enable enhanced protection schemes in critical applications such as motor control centers and main distribution panels.
Yes, CB4033T120480KG5 is UL Listed and designed to meet common industrial enclosure standards, with NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 compatibility. While IP ratings are not specified, its enclosure and mounting practices are compatible with standard industrial panels. For installations in moisture, dust, or wash-down areas, ensure the selected enclosure provides appropriate ingress protection and that wiring practices maintain enclosure integrity and safety interlocks.
The CB4033T120480KG5 delivers reduced downtime through a robust, high-current switch design and optional fault-detection features, contributing to longer mean time between failures. Its UL Listed certification and compatibility with common panel enclosures support faster installation and compliance. Eaton’s warranty and technical support help optimize total cost of ownership, while top-feed design and optional auxiliary provisions simplify upgrades and routine maintenance without major panel rewiring.
Consider optional Ground Fault Relay, Blown Fuse Detection, single-phase protection, Kirk provisions, and auxiliary contact provisions to tailor protection to your application. These options enable enhanced fault detection, better diagnostic visibility, and seamless integration with safety interlocks and control logic. When planning, verify enclosure space, wiring routes, and compatibility with your control system’s interlock and protection requirements to maximize uptime.