Eaton CB1633T120480KG Pringle bolted switch - UL Listed
Part Number: CB1633T120480KG
Quick Summary
Eaton CB1633T120480KG is a bolted pressure contact switch used for high-current protection in industrial switchgear. Engineers often struggle with ensuring fast, reliable tripping and straightforward integration into complex control panels. UL Listed certification confirms safety compliance, and broad NEMA ratings—1, 3R, 4, and 12—support enclosure versatility in harsh environments. Designed for OEMs and maintenance teams, this switch pairs robust protection with 120 V control power and 480 V system voltage, helping reduce downtime. Its top-feed, three-pole configuration aligns with common power distribution architectures, delivering dependable performance across industrial applications. Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary contact provisions allow tailoring to specific protection schemes.
Product Information
Extended Description
CB1633T120480KG Eaton: Eaton pringle bolted pressure contact switch,Interlock,1600A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480KG
UPC
782116956814
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633T120480KG
Feature: High-current capability up to 1600A at 480V system voltage. Business Impact: Enables safe, reliable switching for large motor loads and feeders, reducing arc exposure and downtime. Application: Ideal for manufacturing lines and heavy-duty distribution panels seeking robust protection without frequent maintenance. Feature: Top feed fuse configuration and ground fault with control power transformer. Business Impact: Streamlines wiring, improves fault sensing accuracy, and simplifies panel layouts. Application: Suitable for low-profile, space-constrained enclosures in control rooms and plant floors. Feature: Interlock and charge-before-close mechanism. Business Impact: Enhances operator safety and enables controlled energization sequences, minimizing inrush and accidental energization. Application: Critical in maintenance doors, service bays, and safety-critical installations. Feature: Broad NEMA compatibility (1, 3R, 4, 12) with UL Listed protection. Business Impact: Delivers versatile enclosure options and regulatory confidence across environments. Application: Supports installation in wet, dusty, or corrosive environments typical of process and packaging facilities. Feature: Optional Ground Fault Relay and auxiliary provisions. Business Impact: Extends protective coverage and allows scalable monitoring, reducing unplanned outages. Application: Fits retrofit projects and new builds requiring flexible protection architectures.
Get a Quick Quote for a Eaton CB1633T120480KG
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton CB1633T120480KG?
Enquire Now
FAQs
CB1633T120480KG is designed for a 480V system with a 120V control circuit. It is rated for up to 1600A and uses a top-feed configuration, making it suitable for three-pole, high-current applications in industrial switchgear and control panels. Always verify enclosure rating and wiring practices per NEC and UL requirements.
Installation requires mounting in a suitable enclosure with top-feed terminals. Ensure clearance for a three-pole device and connect the control transformer for the 120V control circuit. Follow Eaton's installation notes for interlock provisions and fuse compatibility. Confirm grounding arrangements are correct to enable reliable ground-fault protection when the optional relay is fitted.
UL Listed indicates regulatory safety compliance for electrical components, which is a key factor in many procurement specifications. While it supports compliance, you should also verify enclosure ratings (NEMA 1, 3R, 4, 12), wiring practices, and any customer-specific standards or regional regulations to ensure full conformity for your site.
The catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection. If you plan to add ground fault protection, install the relay per the manufacturer’s wiring diagram, test under normal and fault conditions, and schedule periodic functional tests to maintain protection reliability and minimize nuisance trips.
By delivering reliable 1600A, 480V protection with robust NEMA compatibility and an interlock feature, the CB1633T120480KG reduces unplanned outages and maintenance delays. The ability to tailor protection with optional relays and auxiliary contacts helps align with specific process safety and downtime reduction goals, delivering meaningful ROI over lifecycle costs.