Eaton CB1233B1204805 Bolted Pressure Switch - UL Listed
Part Number: CB1233B1204805
Quick Summary
Eaton pringle bolted pressure contact switch enables high-current control for industrial power distribution. In demanding facilities, miscoordination in protection schemes and undetected faults can drive costly downtime. This model carries UL Listed safety certification and supports environments with NEMA ratings 1, 3R, 4 and 12 for rugged industrial use. With 120 V control and 480 V system voltage, bottom-feed configuration, and fusible protection, installers gain faster setup, safer operation, and lower maintenance. Its three-pole design and 1 NO-1 NC arrangement support reliable switching of heavy loads with precise trip-before-close behavior, reducing nuisance trips. This combination translates to improved motor protection, safer panels, and a lower total cost of ownership for industrial facilities.
Product Information
Extended Description
CB1233B1204805 Eaton: Eaton pringle bolted pressure contact switch,1200A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B1204805
UPC
782116956647
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
1 NO-1 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
1200A
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233B1204805
Feature: The CB1233B1204805 delivers 1200 A at 480 V with 120 V control voltage in a three-pole, 1 NO-1 NC contact arrangement. Business impact: This capability supports heavy motor feeders and high-current loads with precise protection coordination, reducing dispatch delays and unnecessary part swaps. Application: Ideal for large switchgear, feeder main disconnects, and distribution panels in manufacturing and processing facilities. Feature: Bottom feed design paired with fusible protection and no ground fault path. Business impact: Simplifies wiring, enables straightforward fuse replacement, and minimizes ground fault risk in harsh environments. Application: Common in rugged plant floors and equipment rooms where bottom-entry conduits are preferred. Feature: UL Listed certification and compatibility with NEMA 1, 3R, 4, 12 enclosure environments. Business impact: Ensures safety compliance, speeds audits, and mitigates regulatory risk across multi-site deployments. Application: Suitable for regulated facilities, data centers, and industrial plants requiring verified safety standards. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contacts, and Kirk Provisions. Business impact: Enables tailored protection schemes and remote signaling, reducing downtime and maintenance costs. Application: Systems needing advanced protection coordination and interlocking with existing protection stages. Feature: Physical footprint and durability with dimensions 16 in L x 32 in H x 24 in W and a weight around 200 lb; backed by Eaton’s one-year warranty. Business impact: Predictable installation planning, reliable long-term service, and predictable lifecycle costs. Application: Floor-mounted installations in electrical rooms and switchgear assemblies where space and service access are considerations.
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FAQs
For installation, plan bottom-entry wiring and ensure appropriate conduit sizing to support 16 in length, 24 in width, and 32 in height. Use proper grounding per site code, verify 120 V control wiring separately from 480 V mains, and allow clearance for the 200 lb unit. Consider optional auxiliary contacts to match your panel wiring diagram.
The switch is rated for 1200 A at 480 V with a 120 V control circuit and 1 NO-1 NC contact configuration across three poles. This ensures reliable switching of heavy loads, coordinated tripping, and reduced nuisance trips, which translates to improved motor protection and less unplanned downtime in industrial feeders.
Yes. The catalog notes indicate availability of a Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contacts, Kirk Provisions, and Auxiliary Provisions. These options enable tailored protection schemes and easier integration with existing protection relays, enhancing safety and maintenance workflows.
The unit carries UL Listed safety certification and is compatible with NEMA-rated enclosures: 1, 3R, 4, and 12. This combination supports regulatory compliance, safer operation in harsh environments, and quicker approval processes across multiple facilities.
The high-current rating, durable construction, and optional protection accessories reduce downtime, extend component life, and simplify maintenance planning. While upfront costs are higher, the total cost of ownership drops due to fewer fuse replacements, longer service intervals, and faster fault isolation in critical power distribution networks.