Eaton CB1633T120480KGA9 pringle bolted switch - UL Listed
Part Number: CB1633T120480KGA9
Quick Summary
CB1633T120480KGA9 is a bolted pressure contact switch designed for high-current motor disconnects in industrial facilities. Engineers often contend with unreliable trip signals and protection miscoordination that drive costly downtime. UL Listed certification, along with compatibility to NEMA 1, 3R, 4, and 12 enclosures, supports safe operation across harsh environments. With 1600A at 480V and a 120V control circuit, this device delivers reliable protection without complicating control wiring. In practice, it enables scalable protection in switchgear assemblies, delivering faster commissioning and lower maintenance in industrial automation projects.
Product Information
Extended Description
CB1633T120480KGA9 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with three off lights (trips switch),1600A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480KGA9
UPC
782116956760
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
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
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, BFD with three normally off 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 - CB1633T120480KGA9
Feature: High-current three-pole, top-feed configuration provides a robust disconnect for large motors. Business Impact: Reduces the need for parallel devices and improves fault isolation, lowering arc-flash risk and downtime in heavy industry. Application: Suitable for motor control centers and feeder disconnects in manufacturing plants.Feature: Interlock capability with fusible protection and three normally-off indicator lights (BFD trip lights). Business Impact: Clear, intuitive trip indication minimizes operator error and speeds safe maintenance. Application: Ideal for line-side protection in life-safety and critical process lines.Feature: Ground fault protection with control power transformer. Business Impact: Enhances personnel safety and system reliability by detecting ground faults at the control circuit. Application: Environments with grounded control power and sensitive electronics.Feature: UL Listed certification and NEMA ratings (1, 3R, 4, 12) for versatile installation. Business Impact: Streamlines compliance, reduces panel approval time, and expands use cases across indoor and outdoor enclosures. Application: Panel builders and integrators designing robust electrical distribution.Feature: 120V control voltage and 480V system voltage compatibility with three-wire configuration. Business Impact: Flexible integration across mixed-voltage control schemes, simplifying wiring and stock. Application: Industrial automation projects requiring high-current disconnects in machines and conveyors.
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FAQs
When installing CB1633T120480KGA9, ensure proper mounting in a suitably rated enclosure, accommodate the top-feed/fuse configuration, and observe clearances for a three-wire, three-pole arrangement. Use the interlock and ground-fault provisions of the unit to coordinate with adjacent protective devices and verify wiring integrity with the 120V control circuit plus 480V system connections.
The switch is rated for 1600A with a 480V system voltage and 120V control voltage. It features fusible protection, three-pole operation, and interlock with BFD three-light signaling to indicate trips. Ground fault protection is included via a transformer-based ground fault arrangement, supporting safe operation in demanding environments.
Yes. With three-pole, top-feed configuration and high current capacity, CB1633T120480KGA9 is well suited for motor control centers and heavy-duty disconnect needs. Its UL Listed status and NEMA compatibility simplify panel integration, commissioning, and ongoing protection coordination for high-demand production lines.
CB1633T120480KGA9 carries UL Listed certification and is compatible with NEMA 1, 3R, 4, and 12 enclosures. This combination supports compliance across a wide range of indoor and outdoor industrial applications, easing panel approvals and reducing retrofit risk in existing switchgear.
The unit’s robust construction and clear trip signaling reduce unscheduled downtime and maintenance errors. With reliable protection coordination and long service life, facilities can lower replacement frequency and labor costs. Its warranty aligns with Eaton’s policy, helping protect upfront investment while improving overall return on investment for high-uptime environments.