Eaton CB1633T120480K Pringle bolted pressure switch - UL
Part Number: CB1633T120480K
Quick Summary
Eaton CB1633T120480K is a high-current bolted pressure contact switch for interlock-enabled motor control in industrial panels. Facility teams often struggle with unreliable protection that trips or fails during peak loads, leading to downtime and safety risks. It carries UL Listed safety certification and supports rugged enclosures rated to NEMA 1, 3R, 4, and 12, ensuring compliance in harsh environments. This solution’s top-feed, three-pole design and fusible protection offer robust safety and reliability, while optional features like ground-fault sensing and auxiliary contacts streamline integration for OEMs and service teams, delivering long-term value in demanding process environments.
Product Information
Extended Description
CB1633T120480K Eaton: Eaton pringle bolted pressure contact switch,Interlock,1600A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480K
UPC
782116956913
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB1633T120480K
Feature: High-current 1600A rating with 480V system voltage and 120V control voltage. Business Impact: Enables safe, reliable control of large motors and equipment without compromising protection, reducing unplanned downtime. Application: Suitable for heavy-duty switchgear in manufacturing facilities where consistent performance is non-negotiable. Feature: Three-pole, three-wire configuration with top feed. Business Impact: Simplifies installation and wiring schemes while supporting compact enclosure layouts, lowering installation costs and time. Application: Ideal for new builds and panel upgrades in power distribution rooms. Feature: Fusible protection with electrical trip and charge-before-close mechanism. Business Impact: Provides fast, intentional protection and safe reset behavior, decreasing arc flash risk and equipment damage. Application: Critical in high-load motor startups and demanding process lines. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. Business Impact: Extends diagnostic capability and protection coverage, reducing maintenance intervals and enabling predictive maintenance. Application: OEMs can tailor protection to evolving safety standards and plant requirements. Feature: Durable construction with UL Listed certification and NEMA-rated compatibility (1, 3R, 4, 12). Business Impact: Ensures consistent performance in harsh environments, supporting regulatory compliance and extended asset life. Application: Power distribution cabinets, switchgear, and industrial control panels across multiple sectors. Feature: Dimensions and weight (16 in L × 28 in H × 24 in W; 180 lb). Business Impact: Clear footprint and weight specifications aid cabinet sizing, mounting planning, and lift planning. Application: Installation teams can plan with confidence, reducing site surprises. Insight: The CB1633T120480K design aligns with industry best practices for high-current interlock safety switches, helping teams meet uptime targets while controlling lifecycle costs in complex automation environments.
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FAQs
CB1633T120480K is designed for top-feed, three-pole, three-wire installations in industrial switchgear. Plan for a two-person lift due to its 180 lb weight and provide dedicated mounting space within an enclosure rated for appropriate NEMA conditions. Its 16 in L × 28 in H × 24 in W footprint fits standard power distribution cabinets and supports optional extras such as ground-fault sensing and auxiliary contacts.
Key specs include an amperage rating of 1600A, system voltage of 480V, control voltage of 120V, and a three-pole, three-wire configuration. It provides fusible protection with an electrical trip and charge-before-close mechanism, and carries UL Listed certification. The unit is compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for demanding industrial environments.
Yes. The CB1633T120480K is engineered for high-current applications (1600A) with 480V system voltage and rugged three-pole architecture. Its UL Listed status and NEMA compatibility (1, 3R, 4, 12) ensure robust protection in harsh environments. Optional features like ground-fault sensing and auxiliary contacts further enhance protection and diagnostics for motor control circuits.
CB1633T120480K carries UL Listed certification for electrical safety. It is compatible with NEMA 1, 3R, 4, and 12 enclosures, supporting protection level requirements in industrial switchgear. Optional configurations for ground-fault relay and blown fuse detection help meet additional plant safety standards and diagnostic practices.
The CB1633T120480K reduces maintenance downtime through reliable interlock protection and optional diagnostics like blown fuse detection and ground-fault monitoring. A one-year warranty from installation (or 18 months from shipment) adds risk coverage. Its durable build and UL/NEMA compatibility support longer asset life, lower repair costs, and predictable maintenance cycles.