Eaton NG3900WZ07 MCCB - Series C 3P 900A Generator Breaker
Part Number: NG3900WZ07
Quick Summary
The Eaton Series C molded case circuit breaker provides reliable overcurrent protection for 3‑phase power systems in industrial environments. Manufacturers often struggle with nuisance trips and downtime, and this MCCB helps isolate faults quickly while simplifying maintenance planning. Typical certifications to verify for these devices include CE and UL, along with appropriate IP ratings where enclosure protection is required—confirm model-specific documentation with the manufacturer. By integrating with existing switchgear and using line and load collars, installation is streamlined and field wiring is simplified. This NG3900WZ07 model supports generator protection and is compatible with standard Eaton accessories, delivering robust protection and long-term reliability.
Product Information
Extended Description
NG3900WZ07 Eaton: Eaton Series C molded case circuit breaker, 3P 900A N Generator Bkr w/ line and load collars
Product Name
Eaton Series C molded case circuit breaker
Catalog Number
NG3900WZ07
UPC
786689797492
Product Length/Depth
6 in
Product Height
16.5 in
Product Width
9 in
Product Weight
48 lb
Compliances
Contact Manufacturer
Type
Series C
Special features
Molded case circuit breaker
Feature → Three-pole design capable of handling high-current generator feeds; Business Impact → Improves protection coordination and reduces nuisance trips in critical power paths; Application → Generator protection and heavy-duty industrial power distribution. Feature → Molded case construction provides rugged durability and arc-quenching reliability; Business Impact → Extends equipment life and lowers maintenance costs in harsh industrial environments; Application → Plant-wide electrical protection in manufacturing facilities. Feature → Series C platform offers modular compatibility with Eaton accessories; Business Impact → Simplifies integration with common switchgear and faster installation; Application → Panelboards and MCC assemblies in new builds or retrofits. Feature → Line and load collars facilitate secure terminations and reduced wiring errors; Business Impact → Improves field install efficiency and reliability; Application → Upstream protection schemes in feeders and bussing. Feature → Catalog and technical references (MCCB catalog, “Volume 4, Tab 2”) support faster engineering; Business Impact → Speeds design validation and regulatory compliance; Application → Engineering design and procurement workflows in electrical distribution projects.
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FAQs
NG3900WZ07 uses standard line and load collars compatible with Series C assemblies. For installation, follow the Eaton MCCB mounting dimensions (6 in length, 9 in width, 16.5 in height) and ensure proper bushing and conductors sizing. Verify panel clearance and torque ratings per the latest Eaton installation guidelines to minimize thermal stress and ensure reliable tripping performance.
Key specs include 3P configuration, 900A current rating, Series C family, and molded case construction. Confirm catalog number NG3900WZ07, UPC 786689797492, and the device footprint of 6x9x16.5 in with a 48 lb weight. Also verify trip characteristics, interrupting rating, and compatibility with line/load collars for proper integration with generator protection schemes.
Yes, NG3900WZ07 is designed for generator protection within industrial power distribution. Its three-pole, 900A rating supports high-current generator feeds, and the Series C design provides robust protection within demanding environments. When selecting, ensure coordination with upstream protection devices and confirm enclosure protection requirements for your installation.
Compliances for molded case breakers are facility- and region-specific. While NG3900WZ07 lists 'Contact Manufacturer' for compliances, typical verifications include CE and UL documentation and appropriate IP ratings for enclosure protection. Always request the model-specific certification pack from Eaton to confirm applicable standards for your site.
Using a rugged Series C MCCB with generator protection reduces nuisance trips and unplanned downtime, improving plant reliability and uptime. The durable molded case construction lowers maintenance frequency, while compatibility with standard Eaton accessories simplifies spare-part sourcing and future upgrades, delivering long-term cost savings in power protection.