Eaton CB4033B1204807 Bolted Pressure Switch - UL Listed
Part Number: CB4033B1204807
Quick Summary
Eaton pringle bolted pressure contact switch delivers high-current switching for critical power distribution applications. This rugged device is designed to simplify protection coordination in large switchgear while reducing downtime. UL Listed with NEMA ratings of 1, 3R, 4 and 12, it also supports 480 V system voltage and a 4000 A amperage rating for demanding environments. The unit is compatible with 120 V control voltage and offers optional ground fault relay and auxiliary contact provisions. Its bottom-feed configuration and fusion-protected design streamline installation and maintenance in industrial facilities, delivering predictable performance and long-term reliability for mission-critical operations.
Product Information
Extended Description
CB4033B1204807 Eaton: Eaton pringle bolted pressure contact switch,4000A,2NO-2NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B1204807
UPC
782116950782
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.
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
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B1204807
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The CB4033B1204807 supports a 4000 A amperage rating, enabling safe interruption of high fault currents and reducing the risk of arc flash events during a shutdown. This translates to improved system uptime and lower maintenance costs in heavy-duty switchgear. Application: main feeders and large distribution panels in manufacturing plants and data centers benefit from this robust protection. Feature → Business Impact → Application: The 2 NO-2 NC contact configuration provides flexible signaling and control logic, allowing engineers to implement both normally open and normally closed circuits within a single device. Application: motor control centers and multi-point interlock schemes, where space and wiring efficiency matter. Feature → Business Impact → Application: 120 V control voltage paired with a 480 V system rating enables seamless integration with plant control circuits while preserving high-voltage switching safety. Application: integrated control and protection in panel enclosures. Feature → Business Impact → Application: bottom feed and bottom fuse configuration simplify wiring layouts, reduce cabinet depth, and speed up installation in tight switchgear spaces. Application: retrofits and new builds with limited top-side access. Feature → Business Impact → Application: three-pole, three-wire design provides true three-phase switching with balanced load handling, improving fault isolation and reducing cross-phase coupling in large drives. Application: large industrial drives and distribution networks. Feature → Business Impact → Application: NEMA 1, 3R, 4, 12 ratings and UL Listing deliver rugged enclosure compatibility and regulatory compliance, lowering qualification risk for hazardous environments. Application: harsh factories, outdoors, or wash-down areas. Feature → Business Impact → Application: optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection offer enhanced fault detection and safety, enabling proactive maintenance and reducing unplanned outages. Application: facilities pursuing reliability-centered maintenance programs. Feature → Business Impact → Application: dimensions and weight (22.5 in L, 32 in H, 40 in W; 430 lb) provide clear space planning data for panel layouts and installation sequencing. Application: project engineering and installation planning in new builds and retrofit projects.
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FAQs
CB4033B1204807 uses a 2 NO-2 NC contact configuration across three poles with a bottom feed. This arrangement supports flexible wiring where both normally open and normally closed signals are required, enabling safe, coordinated interlocks in three-phase switchgear. Proper wiring should follow the device’s terminal diagram and respect the 120 V control voltage while ensuring the 480 V system connections are isolated during maintenance.
Key specs include a 4000 A amperage rating, 480 V system voltage, and fusible protection. It is UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures. Optional features such as Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and auxiliary provisions extend protection, improve fault detection, and support safer startup and shutdown sequences in critical power systems.
Yes. The switch is UL Listed and rated for NEMA 1, 3R, 4, and 12 enclosures, which cover indoor environments, outdoor locations, wash-down areas, and harsh industrial settings. This configuration helps ensure reliability under vibration, dust, and moisture exposure typical of heavy manufacturing, chemical processing, and power distribution facilities.
The product is covered by Eaton’s policy, offering a one-year warranty from installation or eighteen months from shipment, whichever occurs first. For extended coverage and guidance on preventive maintenance, consult Eaton Selling Policy 25-000 and the Specification Sheet CB4033B1204807, which provide service terms and recommended inspection intervals.
Plan for a footprint of approximately 22.5 in L, 32 in H, and 40 in W with a weight around 430 lb. Bottom-feed configuration simplifies wiring in panels with limited top access and supports bottom-mounted fusing. Ensure adequate enclosure clearance, mounting provisions, and compatibility with the three-pole, three-wire wiring scheme to optimize installation sequencing and commissioning.