Eaton CB1633B1204807 Pressure Contact Switch - UL Listed
Part Number: CB1633B1204807
Quick Summary
The Eaton CB1633B1204807 pressure contact switch provides high-capacity control for switchgear and power distribution. Engineers often wrestle with space constraints, fault protection, and wiring complexity when integrating large, fusible devices in busy panels. This unit is UL Listed and supports multiple NEMA enclosure ratings (NEMA 1, 3R, 4, 12), offering reliable protection across indoor and harsh environments, with optional ground fault and auxiliary provisions. The design delivers durable performance in industrial settings while aligning with existing Eaton switching devices ecosystems, enabling streamlined procurement and service. By leveraging its bottom-feed, three-pole configuration, you gain installation efficiency and scalable protection for evolving power architectures.
Product Information
Extended Description
CB1633B1204807 Eaton: Eaton pringle bolted pressure contact switch,1600A,2NO-2NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B1204807
UPC
782116958825
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.
Contact configuration
2 NO-2 NC
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
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
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 - CB1633B1204807
Feature: 1600A amperage rating and 480V system voltage. Business Impact: Supports high-load switching in large switchgear with reduced device count, improving reliability and response time. Application: Ideal for motor control centers and power distribution panels requiring robust protective capability. Feature: 2NO-2NC contact configuration. Business Impact: Enables flexible interlocking and signal paths without adding extra components, lowering wiring complexity. Application: Protective interlocks and control circuits in industrial panels. Feature: Bottom feed with fusible configuration. Business Impact: Simplifies installation, lowers cabinet depth requirements, and concentrates protection at the source to minimize fault energy. Application: Space-constrained switchgear and compact subpanels. Feature: UL Listed with NEMA compatibility (1, 3R, 4, 12). Business Impact: Ensures compliance and broad enclosure suitability across environments. Application: Industrial environments with diverse mounting and ingress conditions. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contacts. Business Impact: Enhances monitoring and fault isolation, reducing downtime and maintenance costs. Application: Modernized protection schemes and retrofit projects. Feature: Three-pole, three-wire configuration and bottom-feed design. Business Impact: Streamlines wiring, improves fault clarity, and supports straightforward integration with existing Eaton devices. Application: Large-scale switchgear, panel assemblies, and distributed power systems. Feature: Heavy-duty footprint and weight (16 in L x 24 in W x 32 in H; 200 lb). Business Impact: Provides robust mechanical robustness and clear fault isolation in demanding environments. Application: Industrial installations where durable mechanicals are critical.
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FAQs
For proper installation, plan for a 16 in length, 24 in width, and 32 in height footprint with a 200 lb weight. Use bottom-feed wiring to minimize conduit runs and ensure three-wire, three-pole connections (2NO-2NC). Leave adequate clearance for access to optional provisions like Ground Fault Relay and auxiliary contacts, and follow UL guidelines for enclosure mounting and fan/ventilation requirements.
The unit is rated for 1600A with a 480V system voltage and 120V control voltage. This combination supports large fault currents while maintaining controlled tripping. The 2NO-2NC configuration provides flexible control circuits, enabling precise protection schemes for feeders, motors, and distribution panels without overdesigning the control system.
Yes. The CB1633B1204807 supports NEMA ratings including 4, which suits indoor/outdoor and wash-down environments. It is also compatible with NEMA 1, 3R, and 12 enclosures, making it a versatile choice for motor control centers and critical power distribution in demanding industrial settings.
The switch is UL Listed, ensuring safety compliance for industrial electrical equipment. Its NEMA compatibility groupings define enclosure suitability for various environments. Optional features such as Ground Fault Relay and Auxiliary Contacts expand compliance with monitoring and interlock requirements, helping you meet site-specific protection standards and reduce regulatory risk.
Warranty covers one year from installation or eighteen months from shipment. Maintenance benefits come from optional protections like Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection, which reduce unscheduled downtime. The unit’s robust construction and compatibility with Eaton switching devices streamline parts availability and service, improving total cost of ownership in high-demand facilities.