Eaton CB1633T120480AX7 Pringle bolted pressure contact switch - UL Listed
Part Number: CB1633T120480AX7
Quick Summary
Eaton CB1633T120480AX7 is a pringle bolted pressure contact switch for high-current control in industrial power distribution. Engineers often struggle with reliable fault protection, grounding, and wiring complexity in rugged switchgear. UL Listed certification, NEMA enclosure protections (NEMA 1, 3R, 4, 12), and fusible protection ensure compliance and rugged performance in harsh environments. Its 1600 A amperage, 480 V system voltage, and top-feed, three-pole configuration translate into safer, faster maintenance and improved uptime. Designed to integrate with optional Ground Fault Relay and auxiliary contacts, this switch adds flexibility while protecting downstream equipment and optimizing maintenance workflows.
Product Information
Extended Description
CB1633T120480AX7 Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),1600A,2NO-2NC,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480AX7
UPC
782116957316
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.
Contact configuration
2 NO-2 NC
Feed type
Top
Fuse configuration
Top 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 - CB1633T120480AX7
High amperage rating to handle heavy loads: 1600A capability reduces startup surges and enables continuous operation in feeder circuits and motor control centers, delivering measurable uptime gains in manufacturing plants and distribution facilities. Business impact: improved line reliability and reduced replacement costs; Application: large switchgear assemblies and power distribution panels.Top-feed, three-pole, 2NO-2NC configuration simplifies wiring and reduces installation time: Fewer miswired connections translate to faster commissioning and lower field wiring errors. Business impact: lower installation labor costs and consistent performance across assemblies; Application: MCCs and industrial control panels.Electrical trip with charge-before-close mechanism enhances safety and reduces fault escalation: Fast, controlled switching minimizes contact wear and arc exposure. Business impact: safer shutdowns and longer contact life; Application: critical process lines and load feeders in harsh environments.Fusible protection with optional ground fault and auxiliary provisions: Flexible protection options adapt to evolving protection schemes and fault-detection strategies. Business impact: regulatory compliance and streamlined maintenance; Application: retrofit projects and new installations needing enhanced fault signaling.UL Listed and NEMA-rated enclosure compatibility: Confidence in compliance and rugged performance across 480 V systems and diverse enclosures. Business impact: easier procurement, lower risk of nonconformance, and safer operation in industrial facilities; Application: switchgear, distribution panels, and panel boards.
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FAQs
For installation, use the top-feed configuration and mount the three-pole device in a suitable enclosure compatible with NEMA ratings. The unit supports 3 wires and 2NO-2NC contacts, with a control voltage of 120 V and system voltage up to 480 V. Expect a footprint around 16 in L x 24 in W x 28 in H and a weight near 180 lb. Consider optional ground fault relay or auxiliary provisions for expanded protection.
Key ratings include 1600A amperage, 480 V system voltage, and 120 V control voltage. It uses fusible protection and supports a 2NO-2NC contact configuration across three poles. The device carries UL Listing and is compatible with NEMA 1, 3R, 4, and 12 enclosures, providing robust protection in diverse industrial environments.
Yes. The three-pole, top-feed design with high-current capability and fusible protection makes it well suited for motor control centers and switchgear in industrial facilities. The UL Listed rating and broad NEMA compatibility support reliable operation in demanding environments, while the 120 V control and 480 V system voltage align with common MCC and switchgear standards.
This product is UL Listed, ensuring compliance with recognized safety standards for electrical equipment. It also carries multiple NEMA enclosure ratings (1, 3R, 4, 12), indicating suitability for various enclosures and environmental conditions. Optional features such as Ground Fault Relay and auxiliary contacts offer enhanced protection schemes to meet evolving regulatory and safety requirements.
With a one-year warranty from installation or eighteen months from shipment, CB1633T120480AX7 offers solid field protection. Routine checks should focus on contact wear, fuse condition, and verification of optional fault-detection features. The design supports straightforward replacement of fusible elements and optional retrofit of ground fault or auxiliary provisions, reducing downtime and extending equipment life in continuous operation facilities.