Eaton CB1633B120480A9CT7 Bolted Pressure Switch - UL Listed
Part Number: CB1633B120480A9CT7
Quick Summary
Eaton CB1633B120480A9CT7 bolted pressure switch provides reliable protection for three-pole motor circuits. Facilities often struggle with downtime and fault-prone panels when selecting high-current switching devices. UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures ensure safe, compliant operation across environments. This robust design fits switchgear and industrial control panels, delivering fast trips, dependable fault protection, and optional features that streamline maintenance and compliance. In addition, 120 V control voltage and 480 V system voltage align with common plant architectures, reducing integration time. Leveraging Eaton's reliability helps protect critical assets, minimize risk, and support uptime-focused procurement strategies.
Product Information
Extended Description
CB1633B120480A9CT7 Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (trips switch),,1600A,2NO-2NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480A9CT7
UPC
782116958757
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.
Contact configuration
2 NO-2 NC
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 three normally on lights (trips switch), with control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633B120480A9CT7
High-current capability and voltage range center this switch in demanding environments. The CB1633B120480A9CT7 is rated for 1600 A with a 480 V system voltage and a 120 V control circuit, enabling protection of large motors and feeders without oversizing protective devices. This translates to improved protective coordination and safer startup sequences in motor control centers used in manufacturing lines. The three-pole, 2 NO-2 NC contact configuration with an electrical trip and charge-before-close mechanism provides flexible signaling and safe energize/de-energize behavior, reducing cross-trip risk in complex control panels and MCCs. Bottom feed and fusible protection simplify wiring and fault isolation, enabling neater cable management and faster installation in cabinets with bottom-entry configurations. The UL Listed certification and NEMA ratings ensure compliance and durability, supporting panel builders and end users with predictable performance in harsh environments. Optional features such as Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contact Provisions, and Kirk Provisions are available to enhance monitoring, interlocking, and diagnostics, while the included control power transformer and status indicators (three lights) streamline commissioning. Overall, the CB1633B120480A9CT7 reduces downtime, supports regulatory compliance, and delivers a robust foundation for reliable switchgear integration in control panels and power distribution schemes.
Get a Quick Quote for a Eaton CB1633B120480A9CT7
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 CB1633B120480A9CT7?
Enquire Now
FAQs
CB1633B120480A9CT7 uses a bottom-feed fuse configuration and three-pole design with 2NO-2NC contacts. Plan for a 16 in L x 32 in H x 24 in W footprint and ~200 lb weight; ensure proper mounting, adequate clearance, and clean cable routing. It supports 480 V system voltage and 120 V control with optional ground-fault and auxiliary contacts to match panel needs.
Yes, the CB1633B120480A9CT7 is UL Listed and is compatible with NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 enclosures. This combination provides safety and environmental protection across indoor and more demanding applications. Optional features like ground fault protection and auxiliary provisions can further align with specific regulatory requirements.
This switch is ideal for high-current motor control centers and switchgear applications requiring robust protection and reliable switching. With a 1600 A rating, 480 V system voltage, and 3-pole design, it supports large feeders and complex interlocks in industrial facilities such as manufacturing lines, pumps, and conveyors, while ensuring smooth startup and fault isolation.
Options include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contact Provisions, and Kirk Provisions, all designed to enhance protection, monitoring, and interlocking. These features improve diagnostics, enable better fault indication, and help meet plant-wide safety and code requirements during commissioning and ongoing operation.
The CB1633B120480A9CT7 delivers high-current protection with a reliable 480 V system, 120 V control voltage, and UL/NEMA-listed compliance, reducing risk of outages and unplanned downtime. Its bottom-feed design simplifies wiring, while optional monitoring options and a control transformer support maintenance, diagnostics, and regulatory compliance for long-term total cost of ownership improvements.