Eaton CB2533B120480GRAX7 Pringle bolted switch - UL Listed
Part Number: CB2533B120480GRAX7
Quick Summary
Eaton CB2533B120480GRAX7 pringle bolted pressure contact switch provides reliable three-pole control for power distribution panels. In demanding facilities, coordinating protection devices and dependable fault indication can slow downtime and drive maintenance costs. UL Listed certification backs safety, while the enclosure compatibility with NEMA 1, 3R, 4, and 12 standards supports harsh environments. By integrating a capacitor trip device option and bottom-feed installation, it streamlines panel layouts and reduces wiring complexity. This makes it a practical choice for industrial control panels, switchgear retrofits, and critical power distribution applications.
Product Information
Extended Description
CB2533B120480GRAX7 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),2500A,2NO-2NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480GRAX7
UPC
782116952731
Product Length/Depth
17 in
Product Height
32 in
Product Width
28 in
Product Weight
235 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
Bottom
Fuse configuration
Bottom 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), BFD with no lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533B120480GRAX7
Feature: 2 NO-2 NC contact configuration provides flexible interlocking and control options. Benefit: Enables complex fault protection schemes without adding devices, reducing panel footprint and wiring complexity. Application: Large distribution cabinets and machine controls requiring selective tripping. Feature: Bottom feed and fusible protection simplify wiring and enhance fault isolation. Benefit: Faster wiring, safer maintenance, and improved fault-clearing performance in compact enclosures. Application: Low-voltage to 480V switching in retrofit projects and new installations. Feature: Optional SPVR capacitor trip device supports controlled, rapid tripping for sensitive loads. Benefit: Enhanced protection for motors and circuits with reduced risk of nuisance trips and uncontrolled energization. Application: Systems with capacitor-based protection strategies and ground fault detection. Feature: Ground fault with control power transformer and three-pole operation. Benefit: Clear fault indication and reliable power sectionalization in demanding environments. Application: Industrial switchgear, service panels, and critical power distribution rooms. Feature: NEMA-rated enclosure compatibility (1, 3R, 4, 12) and UL Listed certification. Benefit: Compliance with safety standards and resilience in wet, dusty, or corrosive environments. Application: Harsh factory floors, outdoor installations, and moisture-prone facilities. Feature: High amperage rating of 2500A and 480V system compatibility. Benefit: Supports high current fault events with robust protection, reducing equipment damage risk. Application: Large-scale electrical distribution, data centers, and process industries.
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FAQs
This model is designed for bottom feed and bottom fuse configuration, with 2 NO-2 NC contacts and a three-pole arrangement. Ensure adequate space for the 17x28x32 inch footprint and provide proper wiring routes to minimize interference. The unit supports ground fault with control power transformer and optional SPVR timer, which should be wired per the catalog notes for single-phase protection.
The switch is rated for 2500A with a system voltage of 480V and a control voltage of 120V. It supports fusible protection and provides three-pole, three-wire operation. It is compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for a range of industrial environments and protection schemes.
Yes, the CB2533B120480GRAX7 carries UL Listed certification. Optional features include a Ground Fault Relay and a capacitor trip device (SPVR) for single-phase protection, allowing a safer, more rapid trip sequence in protective schemes.
Industries deploying high-current low-voltage protection in switchgear and distribution panels benefit most, including manufacturing, data centers, mining, and process industries. Its three-pole, bottom-feed design and robust enclosure ratings support demanding environments and large-scale power distribution needs.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For technical support, consult Eaton’s specification sheets or contact authorized distributors to discuss installation guidance and spare parts availability.