Eaton CB4033T120480KRARCT Bolted Switch - UL Listed
Part Number: CB4033T120480KRARCT
Quick Summary
CB4033T120480KRARCT is a bolted pressure contact switch designed for high-capacity protection in switchgear and motor-control centers. Engineers frequently confront nuisance trips, limited space, and the need for dependable protection across 480 V systems. This Eaton unit is UL Listed and compatible with rugged NEMA enclosures, helping ensure safety and uptime in demanding environments. With a 480 V system rating, 4000 A amperage and 120 V control, it delivers scalable protection while reducing maintenance cycles. This makes it a solid fit for industrial automation projects and OEM panel builds, aligning with Eaton switching devices and high-performance control strategies.
Product Information
Extended Description
CB4033T120480KRARCT Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),,4000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480KRARCT
UPC
782116949878
Product Length/Depth
17 in
Product Height
28 in
Product Width
40 in
Product Weight
390 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
No ground fault
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
4000A
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
Interlock, single-phase relay with capacitor trip device (SPVR), BFD with three normally off lights (trips switch), 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 - CB4033T120480KRARCT
Feature → Business Impact → Application: 4000 A amperage rating in a three-pole design enables protection of high-current motor feeders and large distribution circuits, reducing the risk of damaging faults and unplanned downtime in industrial plants. This translates to improved uptime for heavy machinery and streamlined maintenance planning in switchgear assemblies. Application: suitable for 480 V systems in manufacturing lines and processing facilities where reliability and fast fault isolation are critical. Feature → Business Impact → Application: Single-phase relay with capacitor trip device (SPVR) provides controlled, charge-before-close protection, helping prevent nuisance trips while ensuring rapid re-energization after faults. This supports coordination with downstream protection schemes in complex motor control centers. Application: ideal where soft-start interlocks and capacitor-based trip logic are required for sensitive loads and high-inertia equipment. Feature → Business Impact → Application: BFD with three normally off lights (trips switch) offers immediate visual fault indication, accelerating field diagnostics and maintenance planning. Application: beneficial in control rooms and cabinet interiors where quick status checks minimize downtime. Feature → Business Impact → Application: Top feed fuse configuration and no ground fault design simplify wiring and enhance enclosure safety, enabling faster installation and safer service in rugged environments. Application: well-suited for new builds and retrofits in industrial plants with compact switchgear footprints. Feature → Business Impact → Application: Optional ground fault relay, blown fuse detection, auxiliary contact provisions, and Kirk Provisions provide flexible integration points for OEMs and system integrators, reducing engineering time and ensuring regulatory compliance. Application: aligns with OEM control schemes and custom protection architectures in process facilities.
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FAQs
CB4033T120480KRARCT is designed for top-feed configurations with a three-pole, fusible design. When installing, ensure proper enclosure clearance, support for the 390 lb weight, and secure wiring in the top-fed arrangement to maximize cooling and serviceability. Verify UL Listed compliance and confirm compatibility with optional accessories like ground fault relays and auxiliary contacts.
Yes. The device is rated for 480V system voltage and 120V control voltage, with a 4000A amperage rating. This combination supports high-current motor protection while allowing a standard 120V control circuit to coordinate with relays, contactors, and SPVR-capacitor trip devices in industrial control panels.
Its three-pole, fusible design provides robust fault protection, while SPVR offers capacitor-assisted trip logic for reliable energization control. The unit also includes a BFD with three off lights for clear fault indication, top-feed wiring for streamlined installation, and UL Listing to meet safety and reliability standards in heavy-duty motor protection scenarios.
The CB4033T120480KRARCT is UL Listed, signaling compliance with recognized safety standards. It also carries NEMA compatibility ratings (NEMA 1, 3R, 4, 12) for enclosure environments, supporting reliable operation in a range of industrial settings and enclosure types.
The integrated capacitor trip device (SPVR), BFD status indicators, and optional fault-relief accessories reduce troubleshooting time and downtime. Heavy-gauge construction and UL-listed components enhance long-term reliability, potentially lowering maintenance costs and extending service intervals for large-scale switchgear installations.