Eaton CB1633B120480AXCT Pringle bolted switch - UL Listed
Part Number: CB1633B120480AXCT
Quick Summary
Eaton CB1633B120480AXCT is a bolted pressure contact switch designed for high‑current protection in industrial switchgear and power distribution panels. Manufacturers and maintenance teams often battle nuisance trips, wiring complexity, and slow fault diagnostics in large, 480‑V installations. This UL Listed device supports NEMA 1, 3R, 4, and 12 enclosures with fusible protection to improve selectivity and safety. Its bottom‑feed arrangement and 1600A rating simplify installation and reduce enclosure footprint, especially where control power transformers are part of the control loop. With optional Ground Fault Relay, auxiliary contacts, and Kirk provisions, CB1633B120480AXCT offers scalable protection that aligns with commissioning and maintenance workflows. This combination delivers reliability, compliance, and long‑term operating cost reductions for industrial facilities.
Product Information
Extended Description
CB1633B120480AXCT Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),,1600A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480AXCT
UPC
782116958733
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
BFD with no lights (trips switch), with control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB1633B120480AXCT
Feature: 1600A amperage rating, 480V system voltage, 120V control voltage, three‑pole configuration. Business Impact: Handles large motor loads safely, reduces bus and wiring complexity, and improves protection coordination across the switchgear. Application: Ideal for main feeders in distribution panels and motor control centers. Feature: Electrical trip with charge‑before‑close and bottom feed. Business Impact: Fast, reliable disconnection reduces arc energy exposure and minimizes downtime during faults. Application: Protective interlock in high‑power panels where quick clearance is critical. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and Auxiliary Contact Provisions. Business Impact: Enhances diagnostics, fault isolation, and control flexibility, lowering maintenance costs and improving uptime. Application: Critical process lines and plant circuits requiring enhanced visibility and control. Feature: NEMA ratings of 1, 3R, 4, 12. Business Impact: Broad environmental suitability, enabling indoor, outdoor, and harsh‑environment installations with one device. Application: Plant floor installations and outdoor cabinets. Feature: Bottom feed/fuse configuration and rugged construction with UL Listed certification. Business Impact: Streamlines installation, ensures compliance with electrical codes, and supports long service intervals. Application: New builds and retrofits in industrial power distribution where reliability matters.
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FAQs
CB1633B120480AXCT is designed for three‑pole, bottom‑feed configurations and works with standard control power transformers in industrial switchgear. Its fusible protection and UL Listed certification simplify compatibility checks during retrofits, while Kirk and auxiliary provisions support integration with existing annunciation, interlocks, and control circuits. When planning installation, verify enclosure compatibility (NEMA 1, 3R, 4, 12) and ensure proper conductor routing for 480V systems.
The device supports 1600A amperage rating, system voltage 480V, and 120V control voltage with a three‑pole arrangement. It is fusible and bottom‑fed, designed for use in high‑power distribution panels. This combination enables reliable protection for large motors and feeders while maintaining straightforward wiring and coordination with protection relays and transformers.
Yes, CB1633B120480AXCT is UL Listed. It carries NEMA ratings of 1, 3R, 4, and 12, making it suitable for indoor installations as well as outdoor and harsh environments typical of industrial facilities. This versatility helps reduce part diversity and simplifies procurement for mixed environments.
Optional features include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and Auxiliary Contact Provisions. These options provide enhanced fault diagnostics, improved selective coordination, and greater control flexibility in critical applications such as process lines or mission‑critical feeds where rapid fault identification and safe re‑energization are essential.
The product carries Eaton’s warranty policy of one year from installation or eighteen months from shipment, whichever comes first. For maintenance, schedule periodic inspection of the trip mechanism, verify auxiliary contacts, and confirm ground fault and fuse protection options are intact. Routine checks help sustain reliability in high‑duty environments and support regulatory compliance across industrial facilities.