Eaton CB1633T120480K6 Pringle bolted pressure switch - UL Listed
Part Number: CB1633T120480K6
Quick Summary
Eaton pringle bolted pressure contact switch provides high-current motor control in industrial switchgear applications. Operators often struggle with interlock requirements, ground faults, and reliable phase protection in demanding plants; this unit addresses those challenges with a robust top-feed, fusible design and a 1600A rating. UL Listed and NEMA-rated for versatile enclosures, it supports NEMA 1, 3R, 4, and 12 environments, helping meet safety and compliance goals. The combination of 16 in depth, 28 in height, and 24 in width, plus a 180 lb rugged enclosure, translates to smoother installation and fewer field modifications. For OEMs and maintenance teams, it delivers predictable protection, faster commissioning, and reduced total cost of ownership.
Product Information
Extended Description
CB1633T120480K6 Eaton: Eaton pringle bolted pressure contact switch,Interlock, handle suitable for 6'6" requirements,1600A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480K6
UPC
782116956890
Product Length/Depth
16 in
Product Height
28 in
Product Width
24 in
Product Weight
180 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
Top
Fuse configuration
Top 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
Special features
Interlock, handle suitable for 6'6" requirements
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633T120480K6
Feature → Business Impact → Application: This switch delivers a 1600A amperage rating, enabling reliable control of high-current motors, reducing the risk of overcurrent events and unplanned downtime in heavy industry. Resulting efficiency gains support safer and more consistent motor starting, especially in large switchgear assemblies and MCCs. Feature → Business Impact → Application: Top feed fuse configuration and electrical trip with charge-before-close mechanism enhance protection against short circuits and arc events, lowering maintenance costs and improving safety during maintenance shutdowns in petrochemical plants or steel mills. Feature → Business Impact → Application: Interlock with a handle suitable for 6'6" reach improves maintenance ergonomics and operator safety in tight electrical rooms, helping compliance with lockout/tagout practices. Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection provide enhanced fault detection and selective tripping, reducing nuisance outages and extending uptime in demanding manufacturing environments. Feature → Business Impact → Application: Three-pole, three-wire configuration supports robust control of three-phase systems at 480V, aligning with standard industrial power distribution schemes and simplifying panel wiring in control rooms and substations. Feature → Business Impact → Application: UL Listed and NEMA 1, 3R, 4, 12 ratings give buyers confidence in compliance and environmental robustness, supporting faster procurement and easier OEM integration for machine builders and system integrators.
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FAQs
For installation in a switchgear cabinet, verify mounting clearance, secure the unit on a stable base, and align with the enclosure’s top-feed configuration. Connect three wires to the three poles, ensure interlock clearance, and attach the 6'6" handle as required. Use the approved grounding path and confirm UL Listed labeling is visible after assembly. Schedule a post-install alignment check and verify contact integrity during commissioning.
Yes. The CB1633T120480K6 is designed for top-feed fuse configurations and features an interlock with a handle suitable for 6'6" reach. Optional features include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and Auxiliary Contacts, enabling tailored protection schemes. Ensure wiring follows manufacturer diagrams and that the interlock is engaged before powering the system to maximize safety.
Key ratings include 1600A amperage, 480V system voltage, and 120V control voltage, with fusible protection and three-pole, three-wire configuration. The device supports multiple NEMA environments (1, 3R, 4, 12) and is UL Listed. These features provide robust fault protection, safer maintenance, and reliable operation in demanding industrial environments like automotive, chemical processing, and heavy manufacturing.
Ideal for motor control centers, power distribution panels, and large machinery in industries such as steel, mining, oil & gas, and large-scale manufacturing. The robust interlock and top-feed design suit environments requiring reliable high-current protection, while UL Listing and NEMA ratings simplify compliance and installation in diverse enclosures and plant layouts.
The product is covered by Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance should include periodic inspection of the interlock, contact surfaces, and fuse protection, plus verification of UL labeling and enclosure integrity during planned outages to sustain peak protection and minimize unplanned downtime.