Eaton CB4033T120208GRAR Pringle bolted switch - UL Listed
Part Number: CB4033T120208GRAR
Quick Summary
Eaton CB4033T120208GRAR bolted pressure switch delivers high-current protection for industrial switchgear. Engineers often face challenges achieving reliable single-phase protection and precise capacitor-trip timing in top-fed configurations. This unit carries UL Listed safety certification and broad NEMA ratings (NEMA 1, 3R, 4, 12) to meet demanding environments and enclosure compatibility. It supports top-feed wiring and optional ground fault protection, simplifying installation and reducing wiring errors. With a three-pole, three-wire design rated for 4000A at 208V and a capacitor trip device (SPVR), it enables safer operation, faster fault isolation, and lower lifecycle costs for critical loads across manufacturing and processing facilities.
Product Information
Extended Description
CB4033T120208GRAR Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),4000A,120V,Top feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120208GRAR
UPC
782116950140
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
208 V
Voltage - max
208 V
Voltage rating
208 V
Special features
Single-phase voltage relay with capacitor trip device (SPVR), BFD with three normally off lights (trips switch)
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 - CB4033T120208GRAR
Feature: High current rating up to 4000A. Business Impact: Supports demanding industrial feeders without paralleling, reducing bus rating requirements and improving fault handling. Application: Large motors and critical loads in manufacturing lines benefit from robust protection with fewer nuisance trips. Feature: Three-pole, three-wire configuration at 208V. Business Impact: Seamless integration with standard 208V control circuits and distribution schemes, simplifying wiring and reducing installation time. Application: Switchgear assemblies in plant floors and enclosures with limited space. Feature: Single-phase relay with capacitor trip device (SPVR). Business Impact: Faster, coordinated tripping and safer shut-down sequences, minimizing arc flash exposure. Application: Critical feeders requiring reliable trip and reclose logic. Feature: Fusible protection and top-feed fuse configuration. Business Impact: Enhanced protection selectivity and easy supply isolation during maintenance. Application: High-reliability power distribution where fuse coordination is essential. Feature: Optional Ground Fault Relay and auxiliary provisions (Kirk provisions, auxiliary contact provisions). Business Impact: Expanded protection options and easier integration with modern protection schemes. Application: Systems needing ground fault sensing and remote signaling. Feature: NEMA ratings and UL Listed certification. Business Impact: Broad enclosure compatibility and certified safety reduce design risk and accelerate procurement. Application: Environments requiring rugged enclosures and formal compliance.
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FAQs
The CB4033T120208GRAR is designed for top-feed wiring in three-pole, three-wire configurations. Ensure mounting aligns with the enclosure’s internal bus structure, connect the top-feed terminals per Eaton’s wiring diagrams, and verify clearances per NEMA requirements. Optional Ground Fault Relay, auxiliary contacts, and Kirk provisions can be added. Follow the Eaton specification sheet for sequence and torque values to avoid nuisance trips.
The SPVR capacitor trip device provides a controlled, capacitor-assisted trip before closing, reducing inrush and arc energy during switching. This coordination with fusible protection ensures timely fault interruption while preventing premature or delayed trips. In practice, SPVR improves reliability for critical feeders, especially when coordinating with upstream fuses and protective relays in high-current circuits.
Yes. With a 4000A amperage rating, 208V system voltage, and true three-pole protection, this switch is well-suited for large motor feeders and heavy load centers. NEMA 1, 3R, 4, 12 ratings ensure enclosure compatibility in varied environments. Optional ground fault and auxiliary provisions further support motor protection schemes and shutdown reliability in automated manufacturing lines.
CB4033T120208GRAR is UL Listed, indicating verified safety compliance for industrial use. It also carries broad NEMA protection ratings (1, 3R, 4, 12), supporting reliable operation in a range of enclosures and environments. These certifications help meet regulatory and internal safety requirements while simplifying documentation for audits and customer specifications.
Maximize uptime by leveraging the unit’s robust 4000A rating and SPVR trip coordination to minimize unplanned trips. Use optional ground fault protection and auxiliary contacts to enable remote signaling and fault reporting. Regular inspection of fuses, connections, and the top-feed wiring reduces wear, while the UL/NEMA certifications simplify compliance and procurement, delivering lower total cost of ownership.