Eaton CB1233B120480GR Bolted pressure switch - UL Listed
Part Number: CB1233B120480GR
Quick Summary
Eaton CB1233B120480GR bolted pressure switch delivers reliable single-phase protection for industrial electrical systems. Engineers often wrestle with nuisance trips, miscoordination, and downtime when protection devices don’t align with load and fault conditions. UL Listed certification and broad NEMA ratings (NEMA 1, NEMA 3R, NEMA 4, NEMA 12) help ensure regulatory compliance and dependable performance in challenging environments. Ground fault options and the capacitor trip device (SPVR) reduce the risk of cascading faults and allow safer operation of your motors and downstream equipment. This solution also provides installation ease, compatibility with bottom-feed fuses, and clear lifecycle value for panel builders and maintenance teams.
Product Information
Extended Description
CB1233B120480GR Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),1200A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B120480GR
UPC
782116898596
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
200 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
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)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB1233B120480GR
Three-pole protection with a 1200 A amperage rating supports high-load motor feeders and feeders in manufacturing lines, reducing the risk of overload damage and unplanned downtime. The capacitor trip device (SPVR) enables faster, selective opening in single-phase circuits, minimizing nuisance trips while preserving service continuity for critical loads. Ground fault protection with a control power transformer adds safety and fault detection across wet or dusty environments, helping facilities meet safety standards and reduce risk. Bottom-feed fuse configuration simplifies wiring and accelerates panel assembly, improving installation efficiency for controls engineers and panel builders. The unit’s NEMA 1, 3R, 4, 12 ratings and UL Listed certification provide confidence for harsh environments like water treatment, packaging lines, and food processing. Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contact Provisions, and Kirk/Provisions extend diagnostics and control interoperability. With 16 in length, 32 in height, 24 in width, and 200 lb weight, it suits fixed installations in spacious panels while delivering durable protection and predictable lifecycle costs.
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FAQs
Yes. The CB1233B120480GR uses a bottom-feed, three-pole, three-wire configuration designed for bottom-feed panels and fusible setups. It supports 480 V systems with a 120 V control circuit and integrates easily within standard Eaton or compatible control panels. Plan for its 16 in length, 32 in height, and 24 in width, as well as its 200 lb weight during installation.
SPVR stands for capacitor trip device with charge-before-close. It provides rapid, reliable protection for single-phase loads by tripping on capacitor faults and transient overloads. Use SPVR in motor circuits with capacitor-start motors or where fast disconnection reduces damage risk. In combination with fusible protection and ground fault options, it improves selectivity and safety for motor feeders.
The CB1233B120480GR is UL Listed and supports NEMA ratings 1, 3R, 4, and 12, enabling operation in a range of indoor and industrial environments. These certifications help ensure compliance with safety requirements and reliable performance in manufacturing plants, washdown areas, and exposed installations.
Plan for bottom-feed wiring and a three-pole, three-wire configuration when installing. Optional accessories include Ground Fault Relay, Blown Fuse Detection, Auxiliary Contact Provisions, Kirk Provisions, and Single-Phase Protection options. These enhancements expand diagnostics, control flexibility, and safety features, making integration with Eaton or third-party control systems more straightforward.
The warranty is one year from installation or eighteen months from shipment, whichever occurs first (Eaton Selling Policy 25-000). The unit’s robust build, SPVR protection, and modular accessories help reduce downtime and maintenance costs, delivering favorable total cost of ownership for high-demand motor feeder applications in manufacturing and processing facilities.