Eaton CB1633B120480AX5 Bolted Pressure Switch - UL Listed
Part Number: CB1633B120480AX5
Quick Summary
The Eaton CB1633B120480AX5 bolted pressure switch is a high-capacity control device designed for heavy-duty switchgear and motor control centers. When downtime and nuisance trips cost you, reliability and clear fault isolation become non-negotiable. This UL Listed unit delivers up to 1600A with a 120 V control circuit and 480 V system voltage, configured as a 3-pole, 1NO-1NC device for robust protection. Built for industrial environments, its bottom-feed design and fusible protection simplify installation while improving safety margins. In practice, this translates to faster commissioning, easier maintenance, and reduced total cost of ownership for your panel assemblies and feeder circuits.
Product Information
Extended Description
CB1633B120480AX5 Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),1600A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480AX5
UPC
782116958801
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.
Contact configuration
1 NO-1 NC
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 no 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 - CB1633B120480AX5
Feature → Business Impact → Application: The CB1633B120480AX5 offers a 1600A amperage rating and 480V system voltage, enabling it to handle demanding motor control and feeder applications with fewer components and less heat dissipation. This translates into higher reliability and reduced cathodic wear, which lowers maintenance costs in manufacturing plants and distribution centers. Application: ideal for switchgear, MCCs, and large electrical panels where consistent trip performance is critical. Feature → Business Impact → Application: It uses a 1NO-1NC contact configuration in a three-pole design, enabling precise control and dependable fault isolation; the bottom-feed/fuse configuration simplifies wiring and enhances installation speed. Application: suitable for new builds and retrofits in industrial plants where space and wiring efficiency matter. Feature → Business Impact → Application: UL Listed certification provides safety compliance and peace of mind for inspectors and engineers, while NEMA ratings (1, 3R, 4, 12) indicate suitability for a range of enclosure environments. Application: ideal for harsh environments and enclosures requiring proven protection levels. Feature → Business Impact → Application: Optional catalog provisions—Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, Auxiliary Contact Provisions—offer scalable protection and expandability. Application: supports future-proofing of switchgear with enhanced diagnostics and control features. Feature → Business Impact → Application: Bottom feed and fusible protection streamline installation in large vessels and switchboards, reducing wiring complexity and shortening project timelines. Application: beneficial for plant expansions and new installations where speed and reliability are critical. The overall effect is a robust, easy-to-service device that supports efficient commissioning, safer operation, and lower lifecycle costs in industrial automation and electrical distribution ecosystems.
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FAQs
Install the CB1633B120480AX5 using its bottom-feed configuration with fusible protection. The 3-pole, 1NO-1NC contact arrangement simplifies wiring and ensures clear fault isolation. Verify 480V system compatibility and secure mounting to prevent vibration-related contacts wear. Refer to the Eaton specification sheet for torque values and wiring diagrams.
The device is rated for 1600A amperage with a 120 V control voltage and 480 V system voltage. It features a 3-pole, 1NO-1NC configuration and fusible protection, designed for three-wire systems. It is UL Listed and supports NEMA 1, 3R, 4, and 12 enclosures, making it suitable for varied industrial environments.
Yes. The unit carries UL Listing and supports NEMA ratings including 1, 3R, 4, and 12, which cover a range of indoor and outdoor or wet/dusty environments. For extreme conditions, verify enclosure integrity and cooling, and pair with appropriate protective provisions such as GFR or auxiliary contacts as needed.
Catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options enable enhanced fault detection, phased protection, and expanded control signaling for larger switchgear and MCC installations.
Eaton offers a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For reliability and ROI, plan for periodic inspection of fusible elements and contacts, and leverage Eaton’s technical resources and catalogs for installation guidance and spare parts planning.