Eaton CB2533B120208G Bolted pressure switch - UL Listed
Part Number: CB2533B120208G
Quick Summary
Eaton pringle bolted pressure contact switch provides reliable overload protection for heavy industrial electrical systems. Engineers often contend with nuisance trips and integration challenges with control power transformers; this unit solves that by delivering robust protection in a compact, bolted-assembly package. UL Listed certification, along with broad NEMA compatibility (NEMA 1, 3R, 4, 12) and fusible protection, helps ensure regulatory compliance and safety in harsh environments. The design uses a 208V system with a 120V control power transformer, reducing wiring complexity and enabling seamless control integration. In practice, this delivers improved uptime, easier retrofits, and a scalable path to compliant protection across demanding manufacturing and processing facilities.
Product Information
Extended Description
CB2533B120208G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,2500A,120V,Bottom feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120208G
UPC
782116899142
Product Length/Depth
17 in
Product Height
32 in
Product Width
28 in
Product Weight
240 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
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
With control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533B120208G
Feature: Three-pole, 2500A rating and 208V system voltage provide high-current handling for large loads. Business Impact: Protects heavy equipment with reliable instantaneous control, reducing unplanned downtime and long-term wear on upstream switchgear. Application: Ideal for feeders and main service disconnects in industrial plants where peak demand and fault protection are critical. Feature: Bottom feed fuse configuration simplifies wiring and maintenance by aligning with common enclosure layouts. Business Impact: Speeds installation, reduces field wiring errors, and lowers labor costs during commissioning. Application: Suitable for retrofit projects and new installations in compact electrical rooms. Feature: With control power transformer, control circuits can be powered without a separate supply. Business Impact: Cuts capital expense and integration risk while improving interlock and control reliability. Application: Suitable for control wiring in motor starters and protection schemes. Feature: Ground fault option and catalog notes for optional features (Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, Auxiliary Contact Provisions). Business Impact: Enhances safety, improves fault diagnosis, and supports regulatory compliance in complex motor and process lines. Application: Plant-wide protection where precise fault sensing and expansion are required. Feature: NEMA ratings up to 4 and fusible protection enable rugged enclosure selection. Business Impact: Ensures durable performance in damp, dusty, or corrosive environments, reducing enclosure-related failures. Application: Outdoor or sheltered installations in industrial settings. Feature: Dimensions and weight (17 in deep, 28 in wide, 32 in high; 240 lb) support accurate cabinet planning. Business Impact: Optimizes space planning and freight considerations, avoiding costly site adjustments. Application: Large-scale electrical rooms and switchgear bays. Feature: UL Listed certification and warranty (one year from installation or eighteen months from shipment). Business Impact: Provides long-term reliability with manufacturer-backed support, reducing risk for procurement teams. Application: Compliance-driven deployments in regulated environments.
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FAQs
CB2533B120208G uses a bottom feed fuse configuration and is a three-pole device rated for 2500A at 208V with 120V control. It is designed for enclosure layouts that accommodate 17 in depth, 28 in width, and 32 in height, with a total weight of about 240 lb. Ensure compatible NEMA enclosure (1, 3R, 4, 12) and space for the control transformer wiring.
The switch provides 2500A amperage rating, 208V system voltage with a 208V max, and 120V control voltage. It uses fusible protection and is available with ground fault options. It is a three-pole, three-wire device and is UL Listed for safety and compliance.
Yes. The device is a three-pole, three-wire configuration designed to protect large, three-phase loads. It supports 208V systems commonly used in data centers and manufacturing lines, and its ground fault and optional auxiliary provisions enhance protection coordination in multi-phase applications.
CB2533B120208G is UL Listed for safety certification. It also offers compatibility with multiple NEMA enclosure ratings (NEMA 1, 3R, 4, 12) for varied environmental conditions, and supports optional features such as Ground Fault Relay and Blown Fuse Detection to meet regulatory and safety requirements.
With a one-year warranty from installation (or eighteen months from shipment) and rugged fusible protection, the switch reduces downtime and maintenance costs. The integrated control power transformer lowers wiring complexity and ongoing maintenance for control circuits, delivering tangible ROI in uptime and reliability over traditional relay-based protection.