Eaton CB4033B120480GAX Bolted Pressure Switch - UL Listed
Part Number: CB4033B120480GAX
Quick Summary
Eaton CB4033B120480GAX bolted pressure contact switch provides high-current protection for industrial power distribution panels. Maintenance teams often contend with unreliable protection signals and confusing fault indicators, which can trigger costly downtime during critical startups. UL Listed certification and broad NEMA ratings—NEMA 1, 3R, 4, 12—support safe operation across varied environments, while optional ground-fault relay and auxiliary contacts extend protective coverage. This solution is designed for bottom-feed, three-pole configurations with a 120 V control circuit and 480 V system voltage, delivering dependable protection and scalable control architecture for modern facilities.
Product Information
Extended Description
CB4033B120480GAX Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),4000A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480GAX
UPC
782116950645
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
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
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
BFD with no 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 - CB4033B120480GAX
Feature: 4000 A amperage rating at 480 V system voltage. Business Impact: Enables robust protection for large feeders and high-load equipment, reducing the risk of catastrophic faults and downtime. Application: Main switchgear in manufacturing plants and data centers where peak current can approach limits. Feature: Ground fault protection with control power transformer. Business Impact: Improves safety and fault isolation by detecting leakage paths and powering control logic from the same transformer, simplifying wiring and compliance. Application: Motor control centers and automated lines requiring integrated ground fault sensing. Feature: Bottom feed fuse configuration for straightforward wiring. Business Impact: Minimizes installation time and enclosure space while improving fault clarity during maintenance. Application: Industrial panels with constrained front access. Feature: Three-pole design with three wires and bolt-style connections. Business Impact: Enhances fault coordination and reliability in multi-phase systems, reducing mis-operations. Application: Heavy-duty switchgear and MCCs. Feature: Broad NEMA ratings (1, 3R, 4, 12) and fusible protection. Business Impact: Ensures environmental resilience and regulatory alignment across factory floors and outdoor installations. Application: Environments with dust, moisture, and corrosive particulates. Feature: Optional Ground Fault Relay, Auxiliary Contact Provisions, and Kirk provisions per catalog notes. Business Impact: Expands protection modes, enables remote monitoring, and simplifies integration with building management and safety systems. Application: Commercial and industrial facilities pursuing enhanced protective reach and control flexibility.
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FAQs
The CB4033B120480GAX is designed for bottom-feed, three-pole configurations in industrial switchgear and power distribution panels. It supports 480 V system voltage and a 120 V control circuit, with NEMA 1, 3R, 4, and 12 compatibility to cover indoor and outdoor environments. Optional features like ground fault relay and auxiliary contacts expand compatibility with protective relays and control logic.
This switch provides fusible protection with a trip-before-close mechanism and a ground fault option. Its 4000 A amperage rating enables fast, reliable interruption of large faults, while the ground-fault capability helps detect leakage paths and safeguard personnel and equipment during fault events.
Yes, the CB4033B120480GAX is UL Listed. It is rated for 4000 A with a 480 V system voltage and 120 V control voltage, configured as a three-pole, bottom-feed switch. It also supports fusible protection and multiple NEMA ratings for varied environmental exposure.
The unit accommodates large-scale installations with a length/depth of 22.5 in, height of 32 in, and width of 40 in, with an overall weight around 430 lb. When planning space, consider enclosure access for bottom-feed connections, crane or pallet handling for installation, and clearance for maintenance and wiring terminations.
Catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options enable enhanced protection schemes, easier retrofits, and smoother integration with PLCs, SCADA, or BMS interfaces, improving overall system reliability and uptime.