Eaton CB2533T120480GR7 Pringle bolted pressure switch - UL Listed
Part Number: CB2533T120480GR7
Quick Summary
CB2533T120480GR7 bolted pressure switch provides reliable single‑phase protection for heavy electrical equipment in industrial switchgear. Engineers often contend with nuisance trips, ground faults, and wiring complexity that slow commissioning. UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures ensure safe operation across harsh environments. Designed for three‑pole, top‑feed configurations with SPVR and capacitor trip, it supports efficient protection in power distribution. This reduces maintenance, minimizes downtime, and improves reliability for critical industrial processes. Capable of 480 V system voltage with 2 NO-2 NC contacts, it integrates smoothly with existing control wiring. Optional ground fault relay and auxiliary provisions available streamline compliance checks and spare parts planning.
Product Information
Extended Description
CB2533T120480GR7 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),2500A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480GR7
UPC
782116952199
Product Length/Depth
17 in
Product Height
28 in
Product Width
28 in
Product Weight
205 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
2500A
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-phase voltage relay with capacitor trip device (SPVR)
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 - CB2533T120480GR7
High-current capability drives robust main-line protection with a single device. Business impact: reduces the need for parallel devices and minimizes wiring complexity, lowering install and maintenance costs. Application: ideal for switchgear, motor control centers (MCCs), and large panelboards where dependable trip performance is critical. SPVR with capacitor trip device provides rapid, coordinated protection for single-phase circuits. Business impact: lowers nuisance trips and speeds fault isolation, boosting plant uptime. Application: well-suited for control panels and distribution sections in process industries. Top-feed, three-pole configuration with 2 NO-2 NC contacts enables straightforward installation in common control panels. Business impact: simplifies wiring and ensures reliable, coordinated tripping with capacitor relay. Application: matches 480 V distribution with 120 V control in rugged enclosures. Optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contacts (Kirk provisions) support enhanced safety compliance and easier maintenance planning. Business impact: streamlines inspections, reduces spare-part inventories, and improves retrofit flexibility. Application: ideal for facilities prioritizing regulatory alignment and quick diagnostics. Compact integration with 480 V system capability and 120 V control wiring aids installation in existing facilities. Business impact: minimizes panel alterations and accelerates commissioning. Application: suitable for new builds and retrofits in industrial power distribution.
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FAQs
Install in a NEMA-rated enclosure (1, 3R, 4, 12) with top-feed wiring. Use the 2 NO-2 NC contact arrangement and connect 120 V control wiring to the control transformer. Ensure the system voltage is 480 V and follow the SPVR guidelines for capacitor-trip coordination to achieve reliable protection.
The device is rated for 2500 A continuous current, with 120 V control voltage and 480 V system voltage. It features 2 normally open and 2 normally closed contacts across three poles in a top-feed, fusible configuration, designed for single-phase protection with SPVR.
Large switchgear assemblies, motor control centers, and heavy-duty panelboards that require dependable fault protection and fast trip response benefit most. Its UL Listing and broad NEMA compatibility support use in process industries, power distribution, and critical infrastructure applications.
UL Listed certification is included, with NEMA ratings of 1, 3R, 4, and 12. Optional configurations, such as ground fault, auxiliary contacts, and protection accessories, help meet regulatory and safety requirements for industrial facilities.
An integrated protection solution reduces downtime by speeding fault isolation and simplifies maintenance. The high current capacity minimizes need for multiple devices, while optional accessories improve compliance checks and spare-parts planning, delivering a lower total cost of ownership over the equipment life cycle.