Eaton CB1633T120480KA97 Pringle bolted pressure switch - UL Listed
Part Number: CB1633T120480KA97
Quick Summary
Eaton pringle bolted pressure contact switch is designed for robust interlock and safety in industrial power panels and switchgear assemblies. This solution helps reduce nuisance trips and simplifies maintenance by providing clear trip indication and reliable performance in demanding environments. Key certifications such as UL Listed, along with compatible NEMA ratings (NEMA 1, 3R, 4, 12), support safe, code-compliant installations. By combining a high amperage rating with top-feed configuration and fusible protection, this device delivers both safety and reliability while enabling streamlined wiring and quicker commissioning for panel builders and technicians.
Product Information
Extended Description
CB1633T120480KA97 Eaton: Eaton pringle bolted pressure contact switch,Interlock, FBD with three on lights (trips switch),1600A,2NO-2NC,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480KA97
UPC
782116956845
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.
Contact configuration
2 NO-2 NC
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, FBD with three normally on 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 - CB1633T120480KA97
Feature: 3-pole 2 NO-2 NC contact configuration. Business Impact: Enables safe, multi-line control with precise protection for three-phase circuits, reducing the risk of arc flash and misoperation. Application: Suitable for heavy-duty motor control centers and switchgear where reliable 1600A protection is required. Feature: Interlock with three on-lights (FBD) and trip indication. Business Impact: Improves operator awareness and reduces downtime due to mis-trips, enabling faster fault diagnosis. Application: Industrial safety interlock on power distribution panels and safety-critical controls. Feature: Top feed fuse configuration and fusible protection. Business Impact: Simplifies wiring topology and provides fast fault isolation, aiding in compliance with overcurrent protection standards. Application: 480V three-phase power feeds in process lines and manufacturing equipment. Feature: Control voltage 120 V and system voltage 480 V. Business Impact: Enables seamless integration with common control circuits while supporting high-voltage power distribution in a single device. Application: Panel boards, MCCs, and control panels in industrial facilities. Feature: UL Listed with multiple NEMA enclosures compatibility. Business Impact: Eases code compliance and installation in varied environments, reducing engineering effort and rework. Application: Industrial environments requiring rugged protection and standardized enclosure fit. Feature: Optional catalog features (Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary contacts). Business Impact: Extends protection coverage and fault diagnostics without separate retrofits, lowering total cost of ownership. Application: Custom safety configurations for critical process lines and energy-intensive equipment.
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FAQs
When installing CB1633T120480KA97 in existing panels, verify enclosure clearance for a three-pole form factor and top-feed wiring. Ensure the 120 V control circuit is wired to the appropriate control terminals, and that the 480 V three-phase feeders align with the device's 2NO-2NC configuration. Use proper torque on connections and observe UL-listed mounting guidelines to maintain NEMA ratings.
The unit features a 3-pole configuration with 2 normally open and 2 normally closed contacts (2 NO-2 NC) and is rated for up to 1600A. This combination supports high-current control in heavy-duty applications while maintaining reliable trip and interlock functionality.
Yes. The switch is designed for 480 V system voltage and supports three-pole, three-wire operation with fusible protection. Its NEMA compatibility (NEMA 1, 3R, 4, 12) and UL Listed certification make it appropriate for industrial control panels and switchgear handling 480 V three-phase loads.
CB1633T120480KA97 carries UL Listed certification, ensuring compliance with essential electrical safety standards. Its design also accommodates multiple NEMA enclosure ratings (NEMA 1, 3R, 4, 12), supporting freedom to install in various industrial environments while meeting common regulatory expectations.
The product adheres to Eaton’s warranty policy, typically offering one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, rely on the optional features like Ground Fault Relay and Blown Fuse Detection to reduce diagnostic time, and follow Eaton’s service guidelines to maximize uptime and lifecycle value.