Eaton CB2533B120208GRAX5 Bolted pressure switch - UL
Part Number: CB2533B120208GRAX5
Quick Summary
Eaton pringle bolted pressure contact switch provides reliable protection for low-voltage switchgear and motor control centers. In practical environments, nuisance trips and hard-to-service relays can drive up downtime and maintenance costs. UL Listed certification, along with compatible NEMA ratings (NEMA 1, 3R, 4, 12), supports safety and regulatory compliance in demanding industrial applications. This design also aligns with bottom-feed configurations and three-pole protection, offering straightforward integration with existing control power transformers and SPVR schemes while delivering robust, long-term performance for plant-wide protection needs.
Product Information
Extended Description
CB2533B120208GRAX5 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),2500A,1NO-1NC,120V,Bottom feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120208GRAX5
UPC
782116952854
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
1 NO-1 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
208 V
Voltage - max
208 V
Voltage rating
208 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 - CB2533B120208GRAX5
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The CB2533B120208GRAX5 is a three-pole, 1NO-1NC bolted pressure contact switch rated for 2500A with a 120 V control voltage and 208 V system voltage, enabling high-current protection in switchgear without complex rewiring. This translates to faster commissioning, reduced wiring errors, and safer operation in motor control centers. Application: suitable for heavy-duty, bottom-feed installations where compact, reliable protection is essential for critical processes. Feature → Business Impact → Application: SPVR with capacitor trip and BFD without lights reduce nuisance trips and provide precise trip timing, improving process stability and lowering maintenance costs. Application: ideal for single-phase protection in distributions where quick fault isolation matters. Feature → Business Impact → Application: optional Ground Fault Relay and auxiliary/kirk provisions expand monitoring and control, improving safety, fault diagnosis, and retrofit compatibility in aging installations. Application: retrofit-ready protection with minimal downtime. Feature → Business Impact → Application: UL Listed and NEMA-rated housing ensure regulatory compliance and enclosure compatibility, supporting safe integration into compliant switchgear designs. Application: industrial environments requiring certified protection and reliable performance.
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FAQs
The CB2533B120208GRAX5 uses a bottom-feed configuration with 3 wires, delivering 1NO-1NC contacts in a three-pole arrangement. This simplifies wiring in compact switchgear footprints and supports reliable, easy-to-trace tripping circuitry for low-voltage protection.
Key specs include 2500A amperage rating, 120 V control voltage, 208 V system voltage, three-pole configuration, fusible protection, and SPVR with a capacitor trip device. These features support fast, selective trips and robust protection for MCC feeders.
Yes. It carries UL Listed certification and supports NEMA 1, 3R, 4, and 12 enclosure ratings, aligning with common industrial safety and environmental requirements while allowing safe operation in versatile installation environments.
Optional Ground Fault Relay, auxiliary contacts, and other provisions are catalog notes. These options enable enhanced protection, fault detection, and expanded signaling capabilities without replacing the base device.
The device offers robust protection with a long service life, reducing nuisance trips and downtime. Optional features such as SPVR and ground fault monitoring improve fault isolation and diagnostics, contributing to lower maintenance costs and faster mean time to repair (MTTR).