Eaton CB4033T120480G Pringle bolted pressure switch - UL

Part Number: CB4033T120480G
Manufacturer
Eaton
Part number
CB4033T120480G

Quick Summary

Eaton CB4033T120480G pringle bolted pressure contact switch is designed to deliver reliable high-current protection for industrial power distribution. Engineers often wrestle with coordinating control power transformers, ground fault sensing, and fusible protection in compact switchgear. UL Listed certification supports safety compliance while NEMA ratings for environments—NEMA 1, 3R, 4, 12—guide enclosure selection and installation. With a 4000A rating, 480V system voltage, and 120V control voltage, this device reduces panel complexity and speeds maintenance. In practice, it adds value for Eaton switching devices and broader industrial control gear by delivering robust protection in a compact footprint.

Product Information

Extended Description

CB4033T120480G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,4000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480G
UPC
782116899531
Product Length/Depth
17 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.
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
4000A
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
With control power transformer
Feature: 4000A amperage rating with 480V system voltage and 120V control voltage. Business Impact: Handles large motor start currents and heavy loads, reducing the need for multiple feeders and simplifying protection schematics. Application: Main protective switch in switchgear and motor control centers where high current handling is essential. Feature: Top feed, three-pole, fusible configuration with ground fault option. Business Impact: Simplifies wiring, improves fault isolation, and enables coordinated protection within a single device. Application: Industrial distribution panels requiring reliable phase control and quick fault clearance. Feature: Ground fault with control power transformer and optional auxiliary provisions. Business Impact: Enhanced safety monitoring and integration with automation interlocks, lowering risk of ground faults and enabling advanced interlock schemes. Application: Critical process lines and safety-critical sections of manufacturing plants. Feature: UL Listed and NEMA-rated enclosure compatibility (NEMA 1, 3R, 4, 12). Business Impact: Provides regulatory confidence and versatile installation across indoor and outdoor environments. Application: Plant rooms, outdoor switchyards, and harsh production floors where rugged protection is needed. Feature: Physical footprint and weight (17 in D, 28 in H, 40 in W, 390 lb). Business Impact: Predictable space planning for panel layouts and warehouse staging, reducing installation time and misfits. Application: Large-capacity switchgear where a single, integrated solution streamlines assembly and maintenance. Feature: Optional ground fault relay, blown fuse detection, single-phase protection, Kirk provisions, and auxiliary contact provisions. Business Impact: Expands protection options without swapping hardware, enabling scalable automation and risk mitigation. Application: Systems requiring configurable protection features and future-proof interlocks.

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FAQs

Installation of the CB4033T120480G in a top-feed setup involves securing the switch in a compliant enclosure, connecting three incoming phases with proper torque on lugs, and wiring the 120V control circuit from the integrated transformer. Ensure ground bonding per local codes and verify compatibility with the selected NEMA-rated enclosure (1, 3R, 4, 12). Optional ground fault relays or auxiliary contacts can be wired through standard KF/aux terminals to support interlocks and monitoring.
Key specs include a 4000A amperage rating, 480V system voltage, and 120V control voltage, with a three-pole, three-wire configuration and fusible protection. The device is UL Listed and supports NEMA 1, 3R, 4, 12 enclosures. It is designed for 480V power distribution, making it suitable for large industrial equipment and switchgear assemblies.
Yes, the CB4033T120480G is compatible with multiple NEMA-rated environments, including 3R and 4 enclosures, which accommodate outdoor or dusty indoor conditions. Its fusible, top-feed design and strong enclosure protection help keep critical protection devices operating reliably in challenging facilities such as manufacturing floors and outdoor substations.
Optional features include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options enable enhanced fault detection, interlock integration, and expanded monitoring, reducing unplanned downtime and allowing tighter protection coordination with existing automation and safety systems.
By consolidating high-current protection, control power transformation, and optional fault-detection features into a single unit, maintenance complexity decreases and mean time to repair improves. The UL Listed rating and rugged NEMA compatibility support longer service life in demanding environments, reducing replacement costs and improving overall plant reliability.