Eaton CB2033B120480KAX7 Bolted Pressure Switch - UL Listed
Part Number: CB2033B120480KAX7
Quick Summary
The Eaton CB2033B120480KAX7 bolted pressure switch is engineered for high-current interlock protection in industrial control panels. Engineers often wrestle with unreliable trips, ground-fault concerns, and space constraints in bottom-fed, three-pole assemblies. UL Listed certification provides compliance backing, while its NEMA-compatible ratings support rugged industrial environments. When paired with 480 V systems and 120 V control, this switch improves safety, reliability, and maintenance planning. Secondary benefits include optional features like ground-fault protection and auxiliary contacts, delivering scalable protection for growing facilities. Its bottom-feed design, three-pole configuration, and 2NO-2NC contact arrangement support robust control in demanding lines. This combination reduces downtime and simplifies wiring in high-capacity panels.
Product Information
Extended Description
CB2033B120480KAX7 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with no lights (trips switch),2000A,2NO-2NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2033B120480KAX7
UPC
782116957705
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
190 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
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, BFD with no lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2033B120480KAX7
High amperage capability enables true main-feed protection. The CB2033B120480KAX7 delivers 2000A, enabling clean, single-device protection for large feeders and heavy machinery without resorting to parallel switches, reducing panel complexity and wiring costs. Used in manufacturing lines and process plants, it simplifies protection schemes while maintaining reliability. The 2 NO-2 NC contact configuration coupled with an electrical trip and charge-before-close mechanism delivers precise control and safe startup sequences. The bottom feed arrangement simplifies wiring in bottom-entry panels and aligns with common switchgear layouts, reducing installation time and risk of miswiring. System voltage ratings of 480 V with a 120 V control circuit enable a clean separation between power and control networks. The device is rated for NEMA 1, 3R, 4, and 12 enclosures, ensuring suitability for factory floors, damp environments, and wash-down areas. With fusible protection, you can coordinate protection and simplify fuse management. Catalog notes describe optional features such as Ground Fault Relay, Blown Fuse Detection, and Single-Phase Protection, plus Kirk provisions and Auxiliary Contact provisions for expanded interlocking. These options support scalable protection strategies and meet evolving safety standards without swapping hardware. Physically, it measures 16 in length, 32 in height, and 24 in width with an approximate 190 lb weight, indicating robust mechanical integrity suitable for retrofit in large panels. The bottom-feed, fusible design minimizes field modifications and supports straightforward mounting in existing enclosures. Together, these features translate to lower downtime, improved safety, and predictable maintenance intervals, which reduces total cost of ownership for industrial facilities.
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FAQs
Install the three-pole CB2033B120480KAX7 with bottom-feed wiring, connect the 3 wires to the appropriate terminals (2NO-2NC) and ensure the control circuit is wired to 120 V while the main power feeds operate at 480 V. Verify enclosure compatibility (NEMA ratings) and secure the unit to the panel mounting surface before applying power. Follow EU/UL guidelines and Eaton’s installation notes for auxiliary contacts and interlocks.
CB2033B120480KAX7 is rated for 480 V system voltage with a separate 120 V control circuit, enabling safe separation of power and control wiring. Its 2NO-2NC contacts support complex interlock and sequencing logic, while the fusible protection provides coordinated fault isolation. This combination is ideal for high-current switchgear and panel protection in industrial environments.
Yes, CB2033B120480KAX7 carries UL Listed certification, reinforcing compliance with safety standards. It is compatible with NEMA-rated enclosures including 1, 3R, 4, and 12, making it suitable for factory floors, damp conditions, and wash-down areas. Optional features like ground fault protection further enhance regulatory alignment in automated facilities.
The catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single-Phase Protection, Kirk Provisions, and Auxiliary Contact provisions. These options allow scalable safety strategies without changing the core switch hardware, enabling early fault detection, improved outage planning, and enhanced interlocking for evolving production lines.
With a 2000A rating and fusible protection, CB2033B120480KAX7 reduces the need for parallel devices and simplifies protection coordination, lowering wiring and maintenance costs. UL certification supports compliance, while optional fault-detection features minimize unplanned downtime. In large panels, this translates to faster diagnostics, longer mean time between failures, and improved overall equipment effectiveness (OEE).