Eaton CB3033B120480KG7 Bolted Pressure Switch - UL Listed
Part Number: CB3033B120480KG7
Quick Summary
Eaton CB3033B120480KG7 bolted pressure switch provides reliable interlock and fault protection for three-pole industrial control panels. This device helps reduce wiring complexity and unplanned downtime by integrating feed, fault sensing, and trip functions in a single enclosure. It is UL Listed and compatible with NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 enclosures, offering robust protection in harsh environments. With a 3000A amperage rating, 120V control voltage, and 480V system voltage, it supports fusible protection and bottom-feed configurations. Leveraging interlock features, Kirk provisions, and auxiliary contact options, this switch delivers strong safety compliance while streamlining installation and maintenance for safety-critical applications.
Product Information
Extended Description
CB3033B120480KG7 Eaton: Eaton pringle bolted pressure contact switch,Interlock,3000A,2NO-2NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480KG7
UPC
782116899302
Product Length/Depth
22.5 in
Product Height
32 in
Product Width
40 in
Product Weight
430 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
Ground fault with control power transformer
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
3000A
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
Interlock
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120480KG7
Three-pole, 2NO-2NC contact configuration enables coordinated safety interlocks and monitoring, reducing risk of hazardous energization and enabling safer sequencing in motor control centers; this translates to lower incident rates and faster fault isolation in power distribution. The 3000A amperage rating supports large feeders and peak load switching, improving system reliability and reducing the need for frequent upgrades in growing facilities. With 120 V control voltage and 480 V system voltage, the unit integrates seamlessly with common plant controls and MCCs, shortening wiring runs and simplifying panel design. UL Listed with robust NEMA ratings ensures regulatory compliance and environmental suitability, decreasing audit findings and warranty issues for critical applications. Optional ground fault relay, blown fuse detection, and auxiliary contact provisions offer scalable safety features, enabling tailored protection without costly retrofits when your systems evolve.
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FAQs
Begin by confirming enclosure compatibility (NEMA rating) and ensuring a bottom-feed configuration as specified. Connect the three-pole input to the appropriate feeders and wire the 2NO-2NC contacts to the interlock or control circuit. Verify ground fault options and auxiliary contacts are configured per the application, then test the interlock sequence with the control transformer energized to confirm correct trip and close operations.
The switch is rated for 3000A with a 120 V control voltage and a 480 V system voltage. It uses a fusible protection scheme, supports a three-pole configuration with 2NO-2NC contacts, and is designed for bottom feed and ground fault protection options to enhance safety in power distribution panels.
Yes. The unit carries UL Listing and is compatible with multiple NEMA enclosure ratings (NEMA 1, 3R, 4, 12), making it suitable for indoor industrial settings and demanding environments where dust, moisture, or exposure to routine washdowns may occur.
This model is UL Listed, providing recognized safety certification for wiring and interlock functions. It supports standard industrial protections such as interlock features and optional ground fault capabilities, aligning with common safety and electrical standards in control panels and MCCs.
The robust 3000A rating reduces the need for frequent replacements in high-load environments, while the UL Listed status aids compliance and reduces downtime during audits. Its modular interlock design and optional auxiliary features simplify preventive maintenance and future upgrades, delivering lower total cost of ownership over the switchgear life cycle.