Eaton CB3033B120208KRAR bolted pressure switch - UL Listed
Part Number: CB3033B120208KRAR
Quick Summary
Eaton CB3033B120208KRAR bolted pressure contact switch protects electrical systems in heavy industry by delivering reliable line-side interlock and trip control. Operators often grapple with mis-trips, ground fault protection gaps, and hard-to-read status indicators in harsh plant settings. UL Listed certification ensures compliance with electrical safety standards, while the unit's NEMA ratings support reliable performance in damp or dusty environments. In industrial automation deployments, this switch helps minimize downtime and protect critical loads by delivering fast, predictable protection with a compact install footprint. This translates to lower maintenance costs, easier audits, and improved overall equipment effectiveness (OEE) for critical lines in modern plants.
Product Information
Extended Description
CB3033B120208KRAR Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),3000A,120V,Bottom feed,No ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120208KRAR
UPC
782116951604
Product Length/Depth
22.5 in
Product Height
32 in
Product Width
40 in
Product Weight
430 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
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
3000A
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
Interlock, single-phase voltage relay with capacitor trip device (SPVR), 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 - CB3033B120208KRAR
Selling Policy 25-000 - Distribution and Control Products and Services
CB3033B120208KRAR is designed with a bottom feed and three-pole, three-wire configuration, streamlining panel integration. Confirm system voltage of 208 V and control voltage of 120 V, and verify a 3000 A amperage rating to match your bus design. Check enclosure compatibility with your equipment using the listed NEMA ratings (1, 3R, 4, 12) and leave adequate space for the unit’s footprint (22.5 in L x 32 in H x 40 in W). Primary applications include interlock-enabled protection in switchgear, control panels, and large motor drive environments where capacitor trip devices (SPVR) must operate reliably. This unit also supports optional features such as Ground Fault Relay, Blown Fuse Detection, Kirk provisions, and auxiliary contacts to enhance safety and maintainability. Bulletproof rugged construction, bottom feed arrangement, and three-wire configuration simplify installation in existing panels and minimize wiring errors. With UL compliance and broad enclosure compatibility (NEMA 1, 3R, 4, 12), facilities improve compliance, reduce downtime, and extend equipment life.
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FAQs
CB3033B120208KRAR is designed with a bottom feed and three-pole, three-wire configuration, streamlining panel integration. Confirm system voltage of 208 V and control voltage of 120 V, and verify a 3000 A amperage rating to match your bus design. Check enclosure compatibility with your equipment using the listed NEMA ratings (1, 3R, 4, 12) and leave adequate space for the unit’s footprint (22.5 in L x 32 in H x 40 in W).
The SPVR capacitor trip device provides a capacitor-based protection trigger that closes before opening to prevent contact chatter during inrush events. In CB3033B120208KRAR it coordinates with the internal interlock to ensure safe, sequenced disconnection under fault conditions. This mechanism reduces nuisance trips on motor starts while preserving fast, reliable fault clearance essential for large distribution panels.
Yes. The CB3033B120208KRAR carries UL Listed certification, confirming electrical safety compliance. It is also specified to operate within NEMA-rated environments: 1, 3R, 4, and 12, enabling flexible installation in damp, dusty, or protective enclosures commonly found in industrial settings.
Eaton provides a warranty of one year from the date of installation or eighteen months from shipment, whichever occurs first. For maintenance, rely on the optional Ground Fault Relay, Blown Fuse Detection, and auxiliary contacts to simplify diagnostics. Regular inspections should focus on interlock operation, SPVR timing, and fuse status to maintain reliability.
The CB3033B120208KRAR offers robust fault protection with a high current rating (3000A) and dependable capacitor trip logic, reducing downtime from mis-trips and improving fault clearance times. Its rugged bottom-feed design and modular options simplify retrofits, lowering commissioning time and maintenance costs while delivering safer, more predictable performance in critical power distribution lines.