Eaton CB1633T120480GRAR5 Bolted Pressure Switch - UL Listed
Part Number: CB1633T120480GRAR5
Quick Summary
The Eaton CB1633T120480GRAR5 bolted pressure contact switch is designed for high-current, single-phase protection in switchgear, motor control centers, and industrial panels. This solution addresses nuisance trips and poor coordination in large enclosures by integrating a capacitor trip device (SPVR) and an optional ground-fault feature. UL Listed certification reinforces safety compliance for critical installations, while a 480 V system rating and 1600 A amperage capacity meet demanding industrial needs. With 120 V control voltage and a three-pole, 1NO-1NC configuration, the unit offers robust control and signaling. Top-feed design, fusible protection, and strong enclosure compatibility deliver installation simplicity and reliable, maintenance-friendly operation in harsh environments.
Product Information
Extended Description
CB1633T120480GRAR5 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),1600A,1NO-1NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480GRAR5
UPC
782116956944
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.
Contact configuration
1 NO-1 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
1600A
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 three normally off lights (trips switch)
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 - CB1633T120480GRAR5
Feature → Business Impact → Application: 1600 A amperage rating supports heavy MCC loads and consolidates protection in a single device, reducing panel count and improving current handling in 480 V power distribution. Practical application includes large-scale manufacturing lines where reliable protection minimizes downtime and equipment wear. Feature → SPVR capacitor trip device → Benefit: Faster, selective tripping reduces arc flash exposure and improves fault clearance coordination, enhancing safety and uptime in critical switching applications. Application: switchgear assemblies and motor control centers requiring precise trip sequencing. Feature → 1 NO-1 NC contact configuration → Benefit: Clear, discrete signaling for both normally open and normally closed paths simplifies interlocking and control logic. Application: control circuits and interlocks in industrial automation panels. Feature → Ground fault with control power transformer → Benefit: Enhanced protection against ground faults without sacrificing control power integrity, supporting safer startup and shutdown sequences. Application: critical power distribution where leakage protection and reliable control are essential. Feature → Top feed and fusible protection → Benefit: Simplified wiring and integrated protection streamline installation while providing known fault isolation. Application: rugged, high-current feeders in compact switchgear footprints. Feature → NEMA-rated enclosure compatibility (NEMA 1, 3R, 4, 12) → Benefit: Broad installation flexibility across indoor and outdoor environments with strong protection against dust, water, and corrosion. Application: plant floors, outdoor switchgear housings, and harsh industrial settings. Feature → UL Listed certification → Benefit: Proven safety compliance supports regulatory approvals and customer acceptance. Application: any regulated facility requiring verified electrical safety standards. Feature → Optional Ground Fault Relay and auxiliary provisions → Benefit: Extended protection options without OEM redesign, enabling scalable safety configurations. Application: scalable safety upgrades in existing installations.
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FAQs
The CB1633T120480GRAR5 is configured as a three-pole device with top-feed and fusible protection. Install with a 1NO-1NC contact arrangement and ensure proper wiring to 120 V control circuits and 480 V power feeds. The unit supports ground fault options and auxiliary provisions, allowing straightforward integration into standard MCC or switchgear layouts without reconfiguring your control scheme.
Key ratings include a 1600 A amperage capacity, 480 V system voltage, and a 120 V control voltage. The device features a single-phase SPVR with three-pole, three-wire configuration and fusible protection. It is rated for NEMA enclosures including 1, 3R, 4, and 12, enabling broad compatibility with common industrial power distribution setups.
Yes. With a high current rating, three-pole design, and SPVR capability, this switch is well suited for MCCs and large switchgear where reliable fault protection and fast trip coordination are crucial. Its UL Listed status and NEMA compatibility further support installation in diverse MCC environments, simplifying procurement and maintenance planning.
The CB1633T120480GRAR5 carries UL Listed certification, signifying adherence to safety standards for electrical equipment. In addition, it supports installation in NEMA-rated enclosures (1, 3R, 4, 12), expanding regulatory and environmental compliance across indoor and outdoor applications.
Plan for periodic inspection of the fusible protections, SPVR operation, and grounding integrity. Its 1600 A capacity and robust enclosure reduce the need for frequent replacements in high-demand lines, delivering longer run times between maintenance cycles and improved overall equipment effectiveness (OEE) in manufacturing or processing facilities.