Eaton CB1633B120480A Pringle bolted pressure switch - UL
Part Number: CB1633B120480A
Quick Summary
Eaton CB1633B120480A bolted pressure switch protects large motors in industrial control panels. Engineers often struggle to select a device that matches 480 V systems while preventing nuisance trips. UL Listed certification and broad NEMA ratings (NEMA 1, 3R, 4, 12) support reliable enclosure compatibility in demanding environments. This device offers 1600 A current rating and 120 V control voltage, streamlining integration and reducing total cost of ownership. Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary provisions simplify upgrades and compliance, while its bottom-feed, three-pole design supports easy installation in compact switchgear. With Eaton's warranty and service policy, you gain predictable support for long-term uptime.
Product Information
Extended Description
CB1633B120480A Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (does not trip),1600A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480A
UPC
782116958740
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.
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
Special features
BFD with three normally on lights (does not trip)
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633B120480A
Feature: 1600 A amperage rating and 480 V system voltage. Business Impact: Supports robust protection for large motors and feeders, reducing the need for multiple devices and simplifying protection schemes. Application: Ideal for motor control centers and heavy machinery in process and manufacturing facilities. Feature: Three-pole, three-wire bottom-feed configuration with fusible protection. Business Impact: Simplifies wiring, enables consistent fault isolation, and reduces panel footprint while maintaining safety margins. Application: Well-suited for bottom-fed switchgear in tight installations and retrofit projects. Feature: Electrical trip with charge-before-close mechanism. Business Impact: Improves safety by preventing inrush hazards and ensuring controlled switching during maintenance. Application: Suitable for critical power-distribution circuits in high-demand environments such as packaging lines or plastics processing. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contact Provisions. Business Impact: Enhances diagnostics, fault visibility, and compliance readiness, reducing downtime and maintenance costs. Application: Useful where safety interlocks and auxiliary signaling are required. Feature: UL Listed certification and broad NEMA ratings (NEMA 1, 3R, 4, 12). Business Impact: Provides confidence in rugged enclosure protection and broad installation versatility. Application: Appropriate for general purpose to severe-duty environments, indoors or outdoors. Feature: 120 V control voltage with 480 V system capability. Business Impact: Simplifies control-wiring architecture and supports seamless integration with existing plant protection schemes. Application: Works with standard control circuits in modern industrial facilities.
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FAQs
CB1633B120480A features a bottom-feed, three-pole design with three wires and fusible protection, simplifying integration into 480 V switchgear. It is UL Listed and supports optional ground fault relay and auxiliary provisions. Ensure panel space accommodates its 16 in length, 32 in height, and 24 in width, and verify compatibility with your protection scheme.
The device is rated for 1600 A, with a 480 V system voltage and 120 V control voltage. It supports fusible protection, three-pole operation, and three-wire configuration. NEMA ratings include 1, 3R, 4, and 12, indicating suitability for a range of indoor and outdoor enclosures.
Best suited for large motor starters and switchgear assemblies in manufacturing and process facilities operating at 480 V. Its robust protection and bottom-feed design simplify installation in compact control centers while meeting stringent safety and reliability requirements for continuous-operation environments.
UL Listed certification confirms compliance with recognized safety standards. The switch also carries broad NEMA ratings (1, 3R, 4, 12), enabling reliable enclosure protection across varied installation environments and supporting documentation for regulatory audits.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. This policy, combined with reliable uptime from high-current protection and optional fault-detection features, reduces maintenance costs and extends equipment life, improving total cost of ownership for mission-critical applications.