Eaton CB1233T120480GRAX Pringle bolted pressure contact switch - UL Listed
Part Number: CB1233T120480GRAX
Quick Summary
Pringle bolted pressure contact switch is a heavy-duty power control device used in industrial switchgear and motor control centers. Engineers often face nuisance trips and unreliable protection in high-current, fault-prone environments, leading to downtime and maintenance costs. UL Listed certification backs safety compliance, and the unit supports NEMA 1, 3R, 4 and 12 enclosures for versatile indoor or outdoor service. Designed to integrate with Eaton switching devices and standard control circuits, it delivers faster procurement, easier installation, and predictable protection performance across asset fleets. This makes it a practical choice for engineered systems seeking robustness and long-term operating efficiency.
Product Information
Extended Description
CB1233T120480GRAX Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),1200A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233T120480GRAX
UPC
782116955572
Product Length/Depth
16 in
Product Height
28 in
Product Width
24 in
Product Weight
180 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
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
1200A
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 - CB1233T120480GRAX
Feature: Capacitor trip device (SPVR) provides a precise, capacitor-assisted trip sequence that improves trip timing and reduces nuisance trips in single-phase protection scenarios. Business impact: tighter control of fault events minimizes equipment wear and downtime, improving overall plant reliability. Application: suitable for motor control centers and switchgear performing critical load protection in industrial facilities. Feature: Top feed fuse configuration and three-pole, three-wire design enable straightforward wiring and robust fault isolation. Business impact: simplifies installation and enhances safety margins during high-current faults. Application: preferred in high-density distribution panels and retrofit projects where space is constrained. Feature: Ground fault with control power transformer improves ground-fault detection and control-power reliability. Business impact: enhances personnel safety and reduces unplanned outages by enabling rapid, accurate fault indication. Application: essential for critical loads and electrical rooms with sensitive equipment. Feature: NEMA compatibility (1, 3R, 4, 12) expands installation options and environmental resilience. Business impact: supports indoor and outdoor duty cycles, protecting assets in diverse climates. Application: ideal for plant floors, enclosures, and outdoor switchgear housings. Feature: Optional Ground Fault Relay, Auxiliary Contact Provisions, and Kirk Provisions offer flexible integration with control schemes. Business impact: accelerates retrofit projects and reduces wiring complexity, delivering faster time-to-value. Application: suitable for systems requiring enhanced monitoring and automation compatibility. Feature: High-current capability up to 1200 A with 480 V system voltage and 120 V control voltage ensures broad applicability. Business impact: reduces need for multiple devices, lowers inventory, and improves protection coordination. Application: large industrial motors, feeders, and distribution feeders within heavy electrical rooms.
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FAQs
This unit uses a top feed, three-pole, three-wire configuration with fusible protection. Install in a suitable enclosure (NEMA 1, 3R, 4, 12 compatible) and ensure proper wiring to the 120 V control circuit and 480 V system terminals. Verify clearances and torque specifications per the Eaton datasheet and local electrical codes to assure safe, compliant operation.
It is rated for 1200 A with a 480 V system voltage and includes a capacitor trip device (SPVR) for precise trip timing. Ground fault protection is available via the ground fault feature, reducing nuisance trips and enabling faster fault isolation in high-current circuits typical of large motors and feeders.
Yes. The switch operates on a 120 V control voltage and supports optional auxiliary contacts, Kirk provisions, and auxiliary options. This makes integration with existing control schemes straightforward and supports modern automation architectures while preserving reliability in legacy systems.
The device is UL Listed and compatible with multiple NEMA enclosures, specifically NEMA 1, NEMA 3R, NEMA 4, and NEMA 12. This ensures safe operation across indoor and outdoor environments and aligns with standard industrial compliance requirements.
By delivering high-current protection (up to 1200 A) with reliable trip performance (SPVR), the CB1233T120480GRAX reduces unplanned downtimes and wear on protective devices. The option for auxiliary contacts and Kirk provisions simplifies integration, lowering installation costs and enabling quicker fault diagnostics for a stronger total cost of ownership.