Eaton CB1633B1204805 Bolted Pressure Contact Switch - UL
Part Number: CB1633B1204805
Quick Summary
The Eaton CB1633B1204805 bolted pressure contact switch delivers robust electrical protection for large industrial switchgear and motor feeders. Engineers often struggle with nuisance trips, slow fault detection, and compatibility challenges during panel retrofits. UL Listed, along with NEMA ratings of 1, 3R, 4, and 12, underpins rugged enclosure performance and safe operation in demanding environments. With a 1600A main rating, 480V system voltage, 1NO-1NC contact arrangement, and 120V control, the CB1633B1204805 aligns with standard Eaton switching devices, reducing integration risk and supplier fragmentation. Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions are available to tailor protection to your installation, improving uptime and compliance.
Product Information
Extended Description
CB1633B1204805 Eaton: Eaton pringle bolted pressure contact switch,1600A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B1204805
UPC
782116958849
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.
Contact configuration
1 NO-1 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
1600A
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633B1204805
Feature → Business Impact → Application. The 1600A amperage rating and 480V system compatibility deliver high-capacity protection for large motors and feeder circuits, reducing upstream equipment stress and extension of gear life in heavy industrial environments. This translates to lower downtime costs and improved process reliability in manufacturing lines and distribution centers. Feature → Business Impact → Application. The 1NO-1NC contact configuration with three poles and bottom feed simplifies wiring and installation within compact switchgear footprints, enabling faster panel assembly and easier future maintenance in retrofits or new builds. This supports modular plant design and reduces commissioning window time. Feature → Business Impact → Application. Fusible protection combined with a bottom feed arrangement offers flexible fault isolation while maintaining safe, code-compliant enclosure practices in rugged environments, improving compliance and safety records in maintenance audits. Feature → Business Impact → Application. Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions tailor the device to specific protection schemes, enhancing diagnostic clarity and minimizing unintended trips during transient events across power distribution, MCCs, and switchgear. Feature → Business Impact → Application. UL Listed and favorable NEMA ratings (1, 3R, 4, 12) provide rugged enclosure performance, supporting outdoor or damp environments and reducing enclosure-related service calls, which translates to lower total cost of ownership for utilities and industrial facilities.
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FAQs
Install in a three-pole, bottom-fed configuration with 120V control as specified. Ensure the assembly is UL listed and compatible with your switchgear enclosure. Refer to Eaton’s specification sheet for mounting dimensions, required clearances, and any optional provisions such as auxiliary contacts or Kirk provisions for expanded functionality.
The device is rated for 1600A, with a system voltage of 480V and a control voltage of 120V. It features 1NO-1NC contacts in a three-pole configuration, suitable for three-phase protection and switchgear applications involving heavy electrical loads.
Yes. With a 480V system rating, three-pole configuration, fusible protection, and rugged UL Listed construction, it is well-suited for large motor feeders and switchgear assemblies in industrial environments.
The product is UL Listed and offers established NEMA ratings (1, 3R, 4, 12) for enclosure performance. Optional features such as Ground Fault Relay and auxiliary provisions further support compliance and diagnostic capabilities.
Warranty follows Eaton policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Regular maintenance should include checking for ground fault options, fuse status, and auxiliary contacts to ensure continued protection and performance.