Eaton CB1633B120480GRAX Pressure switch - UL Listed

Part Number: CB1633B120480GRAX
Manufacturer
Eaton
Part number
CB1633B120480GRAX

Quick Summary

Pressure switch CB1633B120480GRAX from Eaton provides bolted contact protection for 480V, three-pole motor circuits. Maintenance teams often struggle with reliable ground-fault protection and fuse detection in compact switchgear, which can lead to unplanned downtime. UL Listed certification together with compatibility to common enclosures (NEMA 1, 3R, 4, 12) gives engineers confidence in field reliability and regulatory compliance. This solution also aligns with procurement and maintenance objectives by delivering clear specifications, documented installation guidance, and scalable protection for growing plant demands. By pairing robust protection with practical installation features, Eaton helps you reduce maintenance costs and improve overall equipment uptime without sacrificing safety or performance.

Product Information

Extended Description

CB1633B120480GRAX Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),1600A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480GRAX
UPC
782116958504
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
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
Single-phase voltage relay with capacitor trip device (SPVR), BFD with no lights (trips switch)
Feature: High amperage rating of 1600A enables it to protect large feeders and motors in demanding environments. Business Impact: Supports fewer parallel devices and reduced wiring complexity while maintaining reliable protection in high-load applications. Application: Suitable for heavy-duty switchgear and motor control centers where uptime is critical and space is at a premium. Long-tail keywords: bolted pressure contact switch, high-current protection, motor control center protection. Feature → Business Impact → Application. Feature: Capacitor trip device (SPVR) with BFD and no lights ensures fast, selective tripping to isolate faults without unnecessary alarms. Business Impact: Reduces nuisance trips and minimizes downtime by precise fault discrimination. Application: Industrial plants with sensitive equipment and critical loads requiring dependable fault signaling. Long-tail keywords: capacitor trip device, single-phase voltage relay, BFD. Feature: Ground fault protection option with control power transformer enhances personnel and equipment safety. Business Impact: Improves protection against ground faults in energized systems, reducing shock risk and equipment damage. Application: Metal fabrication, packaging lines, and automation cells where ground fault protection is mandated. Long-tail keywords: ground fault protection, control power transformer, safety interlock. Feature: Bottom feed, fusible configuration improves enclosure compatibility and protection reliability. Business Impact: Simplifies wiring, enhances fault clearing, and supports easy retrofits. Application: New installations and upgrades in cleanroom, food & beverage, and process environments. Long-tail keywords: bottom feed, fusible protection, enclosure compatibility. Feature: Three-pole, three-wire design with 480V system voltage supports versatile integration across common industrial architectures. Business Impact: Enables plug-and-play compatibility with standard 480V distributions, reducing engineering time. Application: Panel builders and switchgear manufacturers seeking standardization across projects. Long-tail keywords: three-pole switch, 480V system, 3-wire configuration. Feature: UL Listed certification assures compliance with safety standards and supports contractor qualification. Business Impact: Speeds project approval and ensures regulatory alignment during audits. Application: Industrial and commercial installations requiring certified protection. Long-tail keywords: UL Listed safety certification, electrical safety standard, regulatory compliance. Feature: Optional accessories include Ground Fault Relay, Blown Fuse Detection, Auxiliary Contacts; available features support customization. Business Impact: Enables tailored protection schemes without replacing base devices, lowering total cost of ownership. Application: Retrofit projects and new builds needing adaptable protection strategies. Long-tail keywords: optional accessories, auxiliary contact provisions, protective relays.

Get a Quick Quote for a Eaton CB1633B120480GRAX

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 CB1633B120480GRAX? Enquire Now

FAQs

Yes. The CB1633B120480GRAX is designed for 480V systems with three poles and three wires, making it compatible with common switchgear architectures. Its bottom-feed configuration simplifies wiring and reduces panel space, facilitating quick installation in new builds or retrofits.
The unit carries a 1600A amperage rating and operates with a 120V control voltage. These specs support high-current protection for large feeders and motors, while allowing easy integration with standard control circuitry and relays.
It is well-suited for motor control centers, heavy-duty feeders, and switchgear in industries such as manufacturing, material handling, and process industries. Its three-pole, fusible design supports robust motor protection for critical equipment in demanding environments.
The CB1633B120480GRAX carries UL Listed certification, a key safety standard for electrical equipment. It is compatible with common NEMA-rated enclosures (NEMA 1, 3R, 4, 12), helping meet enclosure and environmental requirements in many facilities.
Plan for periodic inspection of fusible links and contact wear in high-load apps. The switch’s documented wiring, straightforward installation, and available options (Ground Fault Relay, Blown Fuse Detection) support proactive maintenance, potentially reducing downtime and extending equipment life.