Eaton CB1633B1204806 Pringle Bolted Switch - UL Listed
Part Number: CB1633B1204806
Quick Summary
Eaton CB1633B1204806 is a high-capacity pressure contact switch for industrial power distribution in switchgear and protection schemes. Engineers often wrestle with ensuring reliable fault isolation for large feeders, especially under demanding thermal and duty-cycle conditions. UL Listed and NEMA-rated (NEMA 1, 3R, 4, 12) certifications support compliance across industrial environments. This solution combines robust protection with straightforward installation, delivering reliability for heavy-duty switchgear and reduced maintenance costs. By supporting optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contact Provisions, it adapts to evolving safety and monitoring requirements. Compatible with bottom-feed configurations and up to 1600A at 480V with a 120V control circuit, it reduces wiring effort and field risk.
Product Information
Extended Description
CB1633B1204806 Eaton: Eaton pringle bolted pressure contact switch,Handle suitable for 6'6" requirements,1600A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B1204806
UPC
782116958832
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
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 - CB1633B1204806
Feature: Amperage and voltage rating of 1600A at 480V with 120V control enables direct switching of large feeders, reducing conduit runs and wiring complexity. Business impact: Improves line-side protection density and minimizes installation time in switchgear, motor control centers, and data centers. Application: Heavy-duty power distribution in manufacturing and process facilities. Feature: Three-pole, bottom feed, fusible configuration delivers reliable fault isolation with a compact footprint. Business impact: Streamlines cabinet design and improves fault clearance, reducing downtime during maintenance. Application: Large feeders in compact panel assemblies. Feature: 120V control voltage and support for auxiliary contacts improves control-system integration. Business impact: Easier interlock schemes and signaling, lowering integration risk and project cost. Application: Control centers and programmable logic interfaces. Feature: NEMA ratings of 1, 3R, 4, and 12 extend enclosure suitability across indoor, outdoor, and harsh environments. Business impact: Enhances field reliability and compliance with safety standards. Application: Industrial plants, water treatment, and outdoor switchgear housings. Feature: Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection provide proactive protection and monitoring. Business impact: Early fault detection and reduced unplanned outages, improving maintenance planning. Application: Safety-critical power distribution and skid-mounted systems. Feature: Kirk Provisions and Auxiliary Contact Provisions expand signaling and interlock capabilities. Business impact: Supports complex interlock logic and remote monitoring, offering scalable control. Application: Large-scale automation installations requiring enhanced safety interlocks and diagnostics. Feature: Comprehensive Eaton warranty coverage reduces lifecycle risk and supports maintenance planning. Business impact: Predictable service life and lower total cost of ownership for high-current switchgear. Application: Plants with strict uptime targets and regulatory compliance needs.
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FAQs
Install CB1633B1204806 by positioning the switch in the bottom-feed section of the panel, ensuring the three conductors align with the three poles. Tighten lugs to manufacturer torque specifications and verify the 480V feed and 120V control circuits are correctly connected. Confirm the fusible protection path is intact and that clearance meets enclosure requirements before energizing.
Key ratings include 1600A amperage, 480V system voltage, and 120V control voltage. It is a three-pole, three-wire configuration with fusible protection. The unit is UL Listed and offers NEMA ratings for 1, 3R, 4, and 12 enclosures, making it suitable for a range of indoor and outdoor industrial applications.
Yes. The switch is specified with NEMA ratings including NEMA 4, which supports protection in harsh, wet, or outdoor environments. Combined with UL Listing, it provides reliable performance in demanding facilities, ensuring safe operation of large feeders in weather-exposed or challenging industrial spaces.
Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection add proactive fault detection and safety monitoring. Auxiliary Contact Provisions and Kirk Provisions expand signaling and interlock capabilities, enabling advanced control schemes and better diagnostic visibility for maintenance and compliance programs.
The switch combines high-current reliability with a compact, bottom-fed footprint, reducing wiring complexity and installation time. With UL Listed certification and NEMA-rated protection, maintenance planning benefits from predictable performance and fewer unplanned outages. The warranty supports lifecycle cost management, delivering improved uptime and lower total cost of ownership in high-demand environments.