Eaton CB2533T120480KGR7 Pringle pressure contact switch - UL Listed
Part Number: CB2533T120480KGR7
Quick Summary
Pressure contact switch is a high-current control device used to safely interrupt and monitor heavy machinery in industrial automation. Eaton delivers reliable protection for critical drives, addressing the common challenge of fuse coordination and fault response in demanding power systems. This CB2533T120480KGR7 unit features UL Listed protection, a SPVR capacitor trip device, and an interlock, making it suitable for large motors and feeders in harsh environments. With a three-pole, three-wire configuration and ground-fault capabilities, it supports robust control power and safety interlocks. By combining top-feed input with fused protection, it delivers dependable operation while simplifying installation and service for plant-wide safety and uptime.
Product Information
Extended Description
CB2533T120480KGR7 Eaton: Eaton pringle bolted pressure contact switch,Interlock, 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
CB2533T120480KGR7
UPC
782116951918
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
Interlock, Single-phase voltage relay with capacitor trip device (SPVR)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533T120480KGR7
Feature → Business Impact → Application: 2500 A amperage rating with 2 NO-2 NC contact configuration enables reliable, high-current switching for large motor feeders, reducing arc exposure and enabling safe shutdown in a single device. This translates to improved equipment protection, lower downtime, and simpler wiring for MCCs and switchgear. Application: motor control centers and high-load feeders in manufacturing plants. Feature → Business Impact → Application: SPVR capacitor trip device plus interlock provide faster, predictable tripping with reduced nuisance opens, enhancing machine safety and process continuity. Application: critical loads where precise single-phase protection minimizes sequence disruption. Feature → Business Impact → Application: 480 V system voltage and 120 V control voltage align with common plant power architectures, simplifying integration with existing electrical rooms and control panels. Application: large-scale automation installations and panel boards. Feature → Business Impact → Application: Top feed and fusible configuration streamlines wiring, reduces fault energy, and supports straightforward retrofits in legacy systems. Application: retrofits and new builds in industrial plants needing robust enclosure protection. Feature → Business Impact → Application: NEMA 1, 3R, 4, 12 compatibility and UL Listed certification deliver rugged enclosure protection for outdoor, washdown, and harsh factory environments, ensuring compliance and long service life. Application: outdoor installations, harsh production lines, and environments requiring durable protection. Feature → Business Impact → Application: Ground fault with control transformer capability enables enhanced fault detection and safe control power distribution, lowering the risk of undetected faults and enabling faster corrective action. Application: safety-critical power distribution in metal, chemical, and food & beverage plants. Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contact Provisions and Kirk Provisions provide flexible protection and control customization, reducing total cost of ownership through modular upgrades and easier maintenance. Application: configurable safety schemes in complex electrical rooms and retrofit projects.
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FAQs
To verify compatibility, confirm a three-pole, three-wire configuration with top-feed input, 480 V system voltage, and 120 V control voltage. Ensure the unit supports 2 NO-2 NC contacts and fusible protection, and check that the enclosure aligns with NEMA ratings used in your facility. The Eaton specification sheet provides detailed mounting dimensions and accessory options for retrofit projects.
Key specs include a 2500 A amperage rating, 480 V system voltage, 120 V control voltage, and 2 NO-2 NC contact configuration across a three-pole design. It uses a top-feed fuse configuration with SPVR capacitor trip and interlock. These features support safe, reliable interruption of heavy loads and precise protection in switchgear and MCCs.
This switch is ideal for large motor feeders, motor control centers, and high-current distribution in industrial plants. Its 480 V system compatibility, UL Listing, and NEMA-rated enclosure make it suitable for harsh environments, outdoor installations, and washdown areas where protection against faults and robust switching performance are critical.
The CB2533T120480KGR7 is UL Listed and supports multiple NEMA enclosure ratings (NEMA 1, 3R, 4, 12), indicating suitability for indoor and outdoor environments with varied protection levels. Optional features such as ground fault relay and auxiliary provisions expand compliance options for complex safety and control schemes.
With a heavy‑duty, long‑life design and a one‑year warranty from installation (eighteen months from shipment), maintenance focuses on periodic inspection of connections, ground fault components, and fuse status. The SPVR trip device reduces nuisance trips, improving uptime and return on investment by minimizing unexpected outages and facilitating quick fault diagnosis.