Eaton CB2533T120480GAR7 Pringle bolted pressure switch - UL
Part Number: CB2533T120480GAR7
Quick Summary
Eaton pringle bolted pressure switch safely interlocks high-current circuits for industrial power distribution. This robust device delivers reliable electrical trips and protection in demanding environments, helping minimize unplanned downtime and equipment damage. The design features a charge-before-close mechanism and 2NO-2NC contacts to support flexible interlocking in motor-control centers, while UL Listing confirms compliance with essential safety standards. Built for rugged NEMA enclosures, it supports top-feed wiring and optional ground fault protection, enabling safer operation across extreme conditions. For engineers and procurement teams, this means a proven, maintainable solution that enhances reliability and reduces lifecycle costs in switchgear and power distribution applications.
Product Information
Extended Description
CB2533T120480GAR7 Eaton: Eaton pringle bolted pressure contact switch,BFD with three off lights (trips switch),2500A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480GAR7
UPC
782116952229
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
BFD with three normally off 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 - CB2533T120480GAR7
Feature: High current and voltage capability — 2500A at 480V with 120V control. Business Impact: Enables direct switching of large motor loads, reducing device count and energy waste while improving fault clearance times. Application: Heavy-duty motor control centers and process plants needing robust protection. Feature: Flexible contact configuration — 2 NO-2 NC. Business Impact: Supports complex interlock schemes and signaling for safety-critical sequences, improving operator safety and control reliability. Application: Safety interlocks and control circuits in three-pole switchgear. Feature: Top feed and fusible design. Business Impact: Simplifies wiring, eases installations, and enhances fault isolation in confined spaces. Application: Retrofit projects and new installations in existing panels. Feature: Ground fault protection integration with control transformer (optional relay). Business Impact: Elevates personnel protection and fault detection, reducing shock risk and downtime. Application: Safety-critical power distribution where ground faults must be detected quickly. Feature: Charge-before-close mechanism. Business Impact: Prevents inadvertent re-energization and minimizes arc events during startup. Application: Critical safety sequences in process and manufacturing environments. Feature: Visual status with three-light BFD indicators. Business Impact: Accelerates maintenance and diagnostics by clearly signaling trip events. Application: Routine inspections and remote monitoring in plant control rooms. Feature: UL Listed with broad enclosure compatibility (NEMA 1, 3R, 4, 12). Business Impact: Streamlines approvals and installation in diverse environments, reducing project risk. Application: Industrial facilities across mining, water treatment, and manufacturing sectors.
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FAQs
CB2533T120480GAR7 uses a three-pole, 2NO-2NC configuration with top-feed and fusible design, making retrofits straightforward in many switchgear cabinets. With dimensions around 17 in L, 28 in H, and 28 in W, it requires adequate mounting clearance and alignment with existing feed routes. Optional ground fault protection can be added to align with site safety requirements.
Key specs include a 2500A amperage rating, 480V system voltage, and 120V control voltage. It is a three-pole device with 3 wires, 2NO-2NC contacts, and a fusible protective scheme. This combination supports high-load switching and reliable fault isolation in demanding industrial environments.
Yes. The switch features ground fault capability with a control power transformer and offers optional Ground Fault Relay provisions. This enables enhanced personnel safety and faster fault detection, which is critical in process and power distribution applications where ground faults pose safety risks.
The device is UL Listed, ensuring compliance with recognized safety standards. It supports broad NEMA enclosures (1, 3R, 4, 12) for versatile installation. Warranty terms state one year from installation or eighteen months from shipment, whichever comes first, providing protection against manufacturing defects.
Expect lower maintenance thanks to a robust charge-before-close trip mechanism and clear trip/status signaling (BFD lights). The high current rating reduces the need for multiple parallel devices, lowering upfront costs and ongoing maintenance. Optional ground fault protection further reduces risk-related downtime, improving overall equipment effectiveness.