Eaton CB4033T120480GRA Pringle bolted switch - UL Listed
Part Number: CB4033T120480GRA
Quick Summary
Eaton CB4033T120480GRA is a bolted pressure contact switch for high-amp protection in industrial switchgear. Engineers often face unreliable protection timing and nuisance trips in top-feed systems, which can cause costly downtime. UL Listed certification plus compatible NEMA ratings (NEMA 1, 3R, 4, 12) help ensure dependable performance across indoor and harsh environments. The unit supports a capacitor trip device and ground-fault options, enabling safer coordination with upstream protection. This combination delivers installation ease, predictable protection, and lower lifecycle costs, making it a practical choice for panel builders, OEMs, and distribution panels seeking robust, standards-compliant protection solutions.
Product Information
Extended Description
CB4033T120480GRA Eaton: Eaton pringle bolted pressure contact switch,Single-voltage relay with capacitor trip device (SPVR), BFD with three on lights (does not trip),4000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480GRA
UPC
782116949984
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
Single-voltage relay with capacitor trip device (SPVR), BFD with three normally on lights (does not trip)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB4033T120480GRA
Feature: High-amp protection with 4000A rating and 480V system voltage. Business Impact: Enables safe, scalable protection for large industrial loads, reducing fuse failures and unplanned downtime. Application: Suitable for switchgear and distribution panels where heavy current switching is required and system voltage is 480V. Feature: Top-feed fuse configuration and ground fault grounding with control power transformer. Business Impact: Simplifies wiring topology and improves fault detection, helping maintenance teams locate faults quickly and minimize nuisance trips. Application: Top-fed protection schemes in heavy-duty motor control centers and industrial controls. Feature: Single-voltage relay with capacitor trip device (SPVR) and BFD with three on-lights. Business Impact: Delivers fast, reliable trip sequencing with clear fault indication, improving safety and reducing downtime during faults. Application: Control panels requiring rapid capacitor-based tripping and visible status signals. Feature: Three-pole, three-wire design with fusible protection. Business Impact: Enhances coordination with upstream protective devices and ensures complete phase protection across all poles, lowering burn and arc-risk. Application: Industrial switchboards and safety-critical power distribution. Feature: Optional features (Ground Fault Relay, Blown Fuse Detection, Auxiliary and Kirk provisions). Business Impact: Flexible configurations to meet precise regulatory and application needs, reducing rework and inventory complexity. Application: Customizable protection schemes for OEM equipment and turnkey panel builds.
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FAQs
Yes. CB4033T120480GRA is designed for top-feed, three-pole protection with fusible capabilities and a capacitor trip device, matching UL-listed panels and common motor control configurations.
It features a 4000A amperage rating, 120 V control voltage, 480 V system voltage, three poles, and fusible protection, making it suitable for high-current industrial applications.
Options include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk provisions, and Auxiliary Contact Provisions, allowing customized protection schemes.
The device is UL Listed and carries NEMA ratings of 1, 3R, 4, and 12, supporting varied indoor and outdoor enclosure installations.
The official Eaton specification sheet is available at Eaton's website: CB4033T120480GRA datasheet, which provides complete parameter details and installation guidance.