Eaton CB1233B120208G Bolted Pressure Contact Switch - UL
Part Number: CB1233B120208G
Quick Summary
Eaton CB1233B120208G bolted pressure contact switch provides reliable electrical protection in medium- to high-amp motor and power distribution applications. Engineers often struggle with coordinating control power, ground fault protection, and fuse schemes in compact switchgear. It is UL Listed for electrical safety and compatible with multiple NEMA enclosures (NEMA 1, 3R, 4, 12) to support diverse installations. This design combines a control power transformer and fusible protection, helping meet code requirements while simplifying commissioning and maintenance. With three poles and 208 V system voltage, the unit delivers safer, more reliable plant protection and easier serviceability for ongoing uptime.
Product Information
Extended Description
CB1233B120208G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,1200A,120V,Bottom feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B120208G
UPC
782116956456
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.
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
1200A
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
With control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233B120208G
Feature: High amperage rating of 1200A paired with a 208V system voltage. Benefit: Handles demanding motor loads and large switchgear feeders with reduced conductor sizing and fewer devices in parallel. Application: Ideal for heavy-duty panelboards and distribution centers where reliability and space are at a premium. Feature: Control power transformer integrated into the switch. Benefit: Simplifies control circuit wiring and reduces external components, accelerating installation and minimizing fault points. Application: Common in machines and lines requiring coordinated control power for relays and signaling devices. Feature: Three-pole, bottom-feed, fusible configuration. Benefit: Ensures robust protection with clear trip signaling and straightforward field wiring, facilitating compliant, safe shutdowns. Application: Suitable for compact, high-capacity assemblies in industrial plants. Feature: Ground fault capability with optional accessories. Benefit: Improves personnel safety and system protection by detecting ground faults before damage occurs. Application: Critical in power distribution panels with sensitive equipment. Feature: NEMA 1, 3R, 4, 12 compatibility. Benefit: Expands installation options across indoor enclosures and harsher environments, reducing enclosure diversity and stocking needs. Application: Works across a wide range of plant atmospheres. Feature: Optional accessories including Ground Fault Relay, Blown Fuse Detection, Single Phase Protection. Benefit: Enhances safety and reduces unplanned downtime through proactive protection features. Application: Useful in retrofits and new builds requiring extra protection layers. Feature: 120V control voltage and built-in protection. Benefit: Streamlines control circuits and ensures reliable actuation even under fluctuating line conditions. Application: Motor starters and switchgear where control reliability is critical. Feature: 16 in depth, 32 in height, 24 in width, and 200 lb weight. Benefit: Concrete footprint enables stable mounting and predictable handling during installation. Application: Bespoke layouts in larger switchgear cabinets or custom enclosures.
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FAQs
CB1233B120208G is designed for three-pole, bottom-feed installations in 208V systems with fusible protection. When wiring, ensure proper grounding, correct control power transformer connections, and alignment with NEMA enclosure ratings (1, 3R, 4, 12). The unit’s size and weight require adequate mounting space and handling equipment. Review Eaton's catalog notes for optional features to match your protection scheme.
The switch is rated for 1200A with a system voltage of 208V and a control voltage of 120V. It supports three poles and a three-wire configuration, with fusible protection as the standard. These ratings make it suitable for high-load motor feeders and larger power distribution segments while maintaining coordination with protective relays and fuses.
Yes. The CB1233B120208G is designed for heavy-duty motor protection in panelboards and distribution switchgear. Its three-pole, fusible configuration combined with a control power transformer enables reliable control and protection coordination. For motor applications, ensure compatibility with your motor starter schemes and confirm the enclosure’s NEMA rating supports your environment.
CB1233B120208G is UL Listed, confirming compliance with essential safety standards for electrical equipment. This certification supports installation in certified facilities and simplifies compliance documentation. For broader regulatory alignment, verify site-specific requirements and any additional regional standards that may apply to your installation or end-use sector.
Plan for regular inspection of contact wear, fuse status, and control transformer integrity as part of your preventive maintenance. The fusible protection and ground fault features require periodic verification of protection devices and wiring integrity. Utilize the optional accessories, such as blown fuse detection, to enhance uptime and facilitate quicker fault diagnosis during inspections.