Eaton CB3033T120480KG7NF Pringle pressure switch UL-Listed
Part Number: CB3033T120480KG7NF
Quick Summary
Eaton CB3033T120480KG7NF is a high-capacity pressure switch for industrial control applications. In demanding environments, matching power contacts, fault protection, and safe trip sequencing can trigger costly downtime. This unit carries UL Listed certification and supports rugged NEMA configurations (NEMA 1, 3R, 4, 12) for durable installations. A compact integration with top-feed, ground-fault options, and auxiliary contacts helps you streamline MCCs and switchgear with fewer components. Designed for reliability in control power distribution, it reduces spare parts and maintenance while improving safety.
Product Information
Extended Description
CB3033T120480KG7NF Eaton: Eaton pringle bolted pressure contact switch,Interlock, non-fused,3000A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Non-fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480KG7NF
UPC
782116950881
Product Length/Depth
22.5 in
Product Height
28 in
Product Width
40 in
Product Weight
390 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
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
Non-fusible
System voltage
480 V
Voltage - max
480 V
Voltage rating
480 V
Special features
Interlock, non-fused
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033T120480KG7NF
Selling Policy 25-000 - Distribution and Control Products and Services
High-current capability enables 3000 A ratings, reducing the number of devices needed and minimizing installation complexity while lowering overall system resistance and heat load in main feeders. The business impact is improved reliability for critical processes and potential cost reductions from fewer spares and reduced thermal stress in switchgear, ideal for large motors and heavy-load applications. In practice, this means smoother industrial power distribution and fewer unplanned outages in manufacturing lines or process plants. The 2 NO-2 NC contact configuration provides flexible control logic for interlocks, sequencing, and safety interlocks, delivering safer operation and simplified wiring for control circuits in motor control centers. This translates to faster commissioning and easier future modifications or expansions. Top feed with ground fault protection options and a control power transformer enhances safety and fault isolation, enabling quick tripping and reduced arc-flash risk in harsh environments. This supports reliable maintenance windows and compliance with workplace safety standards. Non-fusible protection and a three-pole, three-wire design offer robust fault containment and straightforward integration with existing MCCs, minimizing custom engineering and enabling plug-and-play compatibility with standard switchgear. Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions provide scalable protection and control features that align with evolving plant safety requirements, reducing lifecycle costs and supporting future-proof configurations. UL Listed certification and NEMA compatibility further ensure regulatory alignment and installation confidence when deploying in tough industrial environments, helping procurement teams meet standards without over-specifying.
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FAQs
This unit is designed for top-feed, three-pole, three-wire installations. Begin by verifying the NEMA enclosure compatibility (1, 3R, 4, 12) and ensuring the control voltage (120 V) matches your control transformer. Connect the 2 NO-2 NC contacts per your interlock or sequencing logic, route conductors through the top-feed terminals, and follow the manufacturer’s wiring diagram in the Eaton specification sheet. Use proper torque settings and de-energize equipment during installation to maintain safety and reliability.
Confirm amperage rating of 3000 A for main feeders, system voltage of 480 V, and control voltage of 120 V. The unit is non-fusible and provides 2 NO-2 NC contact configuration, with interlock and charge-before-close capabilities. Ensure compatibility with your MCC or switchgear and verify the UL Listed status for compliance. If you need feedback protection, consider the available Ground Fault Relay options.
Yes. The 2 NO-2 NC configuration supports interlock logic and safety sequencing, while optional features like Ground Fault Relay, Single Phase Protection, and Auxiliary Contact Provisions enable enhanced protection and monitoring. The bolted pressure contact design and top-feed arrangement are commonly used in interlocked MCCs and larger control panels to deliver reliable, safe operation in demanding environments.
The CB3033T120480KG7NF carries UL Listed certification, which provides essential safety validation for electrical equipment in industrial settings. It also supports NEMA-rated enclosures (NEMA 1, 3R, 4, 12), enabling appropriate protection against dust, moisture, and environmental conditions. These certifications help with regulatory compliance and safer installation in harsh industrial environments.
Eaton provides a one-year limited warranty from installation or eighteen months from shipment, whichever comes first. For maintenance, rely on the non-fusible design and robust enclosure to minimize fuse-related replacements and reduce downtime. Regular inspections of contacts, control wiring, and ground-fault provisions (if installed) will help preserve performance and extend service life in high-load applications.