Eaton CHB330 Circuit Breaker - UL 489 Certified
Part Number: CHB330
Quick Summary
Eaton CHB330 circuit breaker protects electrical power systems from overcurrent in CH Loadcenters. It acts as a reliable safeguard for three-pole circuits in commercial and industrial panels, reducing the risk of equipment damage and downtime. When selecting protection for multi-feeder panels, improper coordination and undersized devices can trigger nuisance trips or inadequate fault handling. The CHB330 carries UL 489 certification and is designed for safe, predictable operation within CH Loadcenters, minimizing arc fault exposure and ensuring fast, clean interruption. This combination delivers consistent protection, straightforward procurement, and long-term reliability, while compatible Eaton accessories and CH Loadcenter integration streamline installation and maintenance in control cabinets and power distribution rooms.
Product Information
Extended Description
CHB330 Eaton: Eaton CH thermal magnetic circuit breaker,Circuit breaker,40 A,10 kAIC,Three-pole,240 V,#8-4 AWG,CHB,CH Loadcenters
Product Name
Eaton CH thermal magnetic circuit breaker
Catalog Number
CHB330
UPC
782113112619
Product Length/Depth
6.1 in
Product Height
2.1 in
Product Width
3.7 in
Product Weight
0.95 lb
Warranty
Limited lifetime
Certifications
UL 489 Contact Manufacturer
Used with
CH Loadcenters
Type
Circuit breaker
Amperage Rating
30 A
Voltage rating
240 V - 240 V
Circuit breaker type
CHB
Interrupt rating
10 kAIC
Wire size
#14-8 AWG
Number of poles
Three-pole
Thermal magnetic trip technology combines instantaneous magnetic actuation with thermal overload protection, delivering precise coordination for 30 A circuits with a 10 kAIC interrupt rating. This reduces nuisance trips caused by short transients and ensures fast fault clearance, minimizing downstream equipment damage. In CH Loadcenters, the CHB330 supports reliable protection for three-pole 240 V circuits used in conveyors, motors, and control panels. Compact form factor and defined dimensions support easier cabinet integration. With a length of 6.1 in, height 2.1 in, width 3.7 in and weight 0.95 lb, it fits standard panel cutouts without compromising space for other devices. The single device reduces wiring complexity and helps maintain enclosure organization, which translates into faster installation and lower commissioning time. Compatibility and installation advantages: Designed specifically for CH Loadcenters, the CHB330 ensures correct fit and straightforward retrofits. Wire size compatibility (#14-8 AWG) supports common distribution circuits, simplifying wiring schemes and reducing part counts. Worst-case short-circuit response remains within industry standards thanks to UL 489 compliance, decreasing risk during audits and inspections. Measurable outcomes: The 10 kAIC interrupt rating provides robust fault current handling for demanding facilities, improving safety margins and reducing panel downtime after a fault. The limited lifetime warranty from Eaton lowers total cost of ownership by reducing replacement costs over the device lifecycle. For procurement teams, standardized CH series breakers streamline stocking and vendor management. Industry context and best practices: In modern industrial power distribution, selecting a 3-pole 240 V circuit breaker with a rated trip characteristic improves coordination with downstream protective devices and feeders. The CHB330 aligns with common control panel architectures, allowing pre-wired, plug-and-play replacement in retrofit projects.
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FAQs
The CHB330 is designed for straightforward panel installation in CH Loadcenters. It supports three-pole mounting and uses wire sizes #14-8 AWG, enabling clean, code-compliant terminations. The compact 6.1 in by 3.7 in by 2.1 in footprint fits standard enclosure openings and simplifies field wiring, reducing installation time and potential miswiring.
CHB330 is rated 30 A at 240 V with a 10 kAIC interrupt rating and three poles. Physical dimensions are 6.1 in (L) × 2.1 in (H) × 3.7 in (W), weight approximately 0.95 lb. These specs enable predictable trip behavior and easy fit within CH Loadcenters and compact panels.
Yes. With a 30 A rating, 240 V operation, and 10 kAIC interrupt capacity, the CHB330 provides robust protection for industrial feeders and motors within CH Loadcenters. UL 489 listing supports safety compliance across harsh environments, and the compact design helps consolidate space in crowded control cabinets.
CHB330 is UL 489 listed, ensuring adherence to recognized safety and performance standards for circuit breakers in commercial and industrial equipment. The certification supports regulatory audits, maintains warranty eligibility, and aligns with Eaton CH Loadcenter configurations for consistent electrical protection and easier maintenance.
The CHB330 carries a limited lifetime warranty from Eaton, reflecting a long-term commitment to reliability. Routine maintenance is minimal; however, periodic inspection of connections and terminations is advised. The availability of compatible CH Loadcenter accessories helps ensure ongoing protection performance and reduces total cost of ownership over the equipment lifecycle.