Eaton CB1633T120480AR76 Pressure Switch - UL Listed
Part Number: CB1633T120480AR76
Quick Summary
Eaton CB1633T120480AR76 pressure switch is designed to deliver reliable electrical trip protection in industrial switchgear applications such as power-distribution panels and control centers. Engineers often face nuisance trips and difficult fault isolation in high-current systems, which can drive maintenance costs and downtime. The unit carries UL Listed certification and enclosure ratings that support safe, compliant operation in a range of environments, including NEMA 1, 3R, 4, and 12 enclosures. With a 1600A amperage rating, 480V system voltage, and 120V control voltage, it pairs robust protection with practical installation in modern control panels. Optional ground-fault relay, blown fuse detection, and auxiliary-contact provisions further enhance protection without complicating wiring or service.
Product Information
Extended Description
CB1633T120480AR76 Eaton: Eaton pringle bolted pressure contact switch,BFD with three off lights (trip switch), handle suitable for 6'6" requirements,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
CB1633T120480AR76
UPC
782116957231
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
BFD with three normally off lights (trip switch), 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 - CB1633T120480AR76
Feature: 2 NO-2 NC contact configuration in a three-pole, top-fed design. This arrangement enables precise fault isolation and simpler wiring, reducing commissioning time and wiring errors. Application: ideal for motor control centers, distribution panels, and control cabinets seeking reliable trip protection. Feature: 1600A amperage rating with 480V system voltage and 120V control voltage. Business impact: supports high-load feeders and motors while maintaining consistent protection, minimizing nuisance trips and unplanned downtime. Application: suitable for large MCCs, feeders, and high-current switchgear in manufacturing facilities. Feature: Fusible protection and rugged enclosure options up to NEMA 12. Business impact: enhances environmental resilience and fault containment, lowering repair costs in dusty or damp environments. Application: process plants, outdoor installations, and indoor switchgear cabinets. Feature: Top feed, ground-fault relay options, blown fuse detection, and auxiliary contact provisions (Kirk provisions available). Business impact: enables flexible protection schemes without major rewiring, speeding commissioning and ensuring code compliance. Application: retrofit projects and new builds in utilities, food & beverage, and automotive facilities. Feature: UL Listed certification plus standard NEMA ratings (1, 3R, 4, 12). Business impact: simplifies procurement, improves safety documentation, and supports regulatory alignment. Application: widely used in US-based panel assemblies and industrial control environments.
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FAQs
Start by checking the switch’s electrical ratings: 1600A amperage, 480V system voltage, and 120V control voltage, plus a 3-pole, 2NO-2NC contact configuration. Ensure your enclosure supports NEMA ratings 1, 3R, 4, or 12 and that top-feed wiring matches your layout. Confirm availability of optional ground fault relay and auxiliary contacts to align with your safety and control schemes.
Key specs include a 1600A amperage rating, 480V system voltage, and 120V control voltage, with a three-pole configuration and 2NO-2NC contacts. The device uses fusible protection and is UL Listed, suitable for NEMA 1, 3R, 4, and 12 enclosures. These figures guide protection settings, wiring, and control logic in high-current panels.
Yes. The switch is engineered for 480V systems with a 1600A rating and top-feed, three-pole configuration. It supports typical industrial control architectures and can integrate with 120V control circuits, auxiliary contacts, and optional protection options, making it a strong fit for large panels, MCCs, and distribution centers.
CB1633T120480AR76 is UL Listed, offering recognized safety validation for electrical components in the US. It also has NEMA enclosure ratings (1, 3R, 4, 12), indicating suitable protection for varied environments. These certifications simplify procurement, documentation, and regulatory compliance in panel builds and safety programs.
Consider the optional ground fault relay, blown fuse detection, and auxiliary contact provisions to tailor protection while minimizing downtime. With high current applications, reliable trip-before-close operation reduces fault propagation, improves safety, and lowers long-term maintenance costs by decreasing unplanned outages in manufacturing and process facilities.