Eaton JG3200W Engine Generator MCCB - UL Listed
Part Number: JG3200W
Quick Summary
Engine Generator MCCB protects generator outputs in industrial power systems, enabling safe startup and fault protection. Engineers often face mis-sizing, nuisance trips, and compatibility gaps when upgrading to generator-specific protective devices, which can disrupt critical operations. This unit carries IEC 947-2, UL 489, and CSA certifications, underscoring robust compliance across global installations. By aligning with the J-frame and a 200 A rating, it delivers predictable protection without complicating enclosure layouts, and its reverse-feed capability minimizes risk during generator start and transfer. The result is improved reliability, reduced maintenance overhead, and a stronger value proposition for OEMs and end users alike, with clear pathways for spare-part availability and field-service support.
Product Information
Extended Description
JG3200W Eaton: Molded Case Engine Generator Circuit Breaker, Series C, JG-frame, Three-pole, 200A, Without terminals, Reverse feed, Thermal magnetic trip, 350-700 pickup, 72 kVA/58 kW at 240V, 144 kVA/116 kW at 480V, 181 kVA/144 kW at 600V generator
Product Name
Eaton complete engine generator molded case circuit breaker
Catalog Number
JG3200W
UPC
786679269381
Product Length/Depth
12 in
Product Height
7 in
Product Width
7 in
Product Weight
9.21 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
IEC 947-2 IEC Rated UL 489 CSA Certified UL Listed CSA Std. C22.2 No. 5
Amperage Rating
200 A
Voltage rating
600 Vac
Trip Type
T268
Circuit breaker frame type
Complete breaker
Terminals
Without terminals
Frame
J
Frequency rating
60 Hz
Class
Engine generator
Interrupt rating
14 kAIC at 480 Vac
Generator rating
72 kVA/58 kW at 240 Vac, 144 kVA/116 kW at 480 Vac, 181 kVA/144 kW at 600 Vac
Number of poles
Three-pole
Functions
Reverse
Engine generator circuit breakers catalog
Circuit Breakers Explained
Eaton Specification Sheet - JG3200W
200 A amperage rating provides direct, field-proven protection for generator outputs, reducing the risk of costly damage from overloads and short circuits. This translates to meaningful uptime gains and longer service intervals for standby or prime generator setups. Applications include 240 V, 480 V, and 600 V generator configurations in industrial facilities, with compatibility to the J-frame family for a seamless protection upgrade. Three-pole, frame J, with reverse-feed capability and a thermal-magnetic trip delivers fast fault isolation while enabling safe generator transfer sequences. The design minimizes nuisance trips and provides predictable coordination with mains and generators. Ideal for engine-generator systems where reverse power flow and rapid disconnection must be controlled in a compact enclosure. Interrupt rating of 14 kAIC at 480 Vac ensures resilience against high short-circuit currents commonly encountered in industrial plants. Combined with the engine-generator class protection, it supports robust protection without oversizing the core breaker. This improves protection reliability while reducing unnecessary downtime during transient faults. Compact footprint—12 inches deep, 7 by 7 inches in plan, and about 9.21 pounds—simplifies mounting inside standard generator enclosures. Easy installation and compatibility with terminals-less design streamline field wiring and reduce enclosure modification needs. The JG3200W integrates with existing Eaton cataloged components for a coherent protection scheme. Certifications including IEC 947-2, UL 489, and CSA provide regulatory assurance across North American and international projects. The product ships with Eaton warranty policy and a clear service path, helping maintenance teams plan preventive checks and replacements with confidence.
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FAQs
Plan for a compatible J-frame, three-pole configuration, and the absence of terminals as specified. Mount the breaker securely inside a suitable enclosure, size the wiring to support 200 A at up to 600 Vac, and wire per generator-output conductors with proper lugs and clearances. Verify reverse-feed wiring and follow all applicable safety standards during commissioning.
Key specs include a 200 A amperage rating, 600 Vac voltage rating, 60 Hz frequency, three-pole construction, frame J, and a T268 trip type. It features a 14 kAIC interrupt rating at 480 Vac, and a thermal-magnetic trip for reliable overcurrent protection, suitable for generator startup surges and fault clearing.
Yes. The device is rated for 600 Vac and provides generator ratings up to 181 kVA/144 kW at 600 Vac, making it appropriate for larger gensets and industrial power systems requiring robust overcurrent protection with reverse-feed capabilities.
The JG3200W carries IEC 947-2, UL 489, and CSA certifications, signifying compliance with global electrical standards. This reduces regulatory risk, facilitates cross-border installations, and supports supplier qualification in regulated projects, from manufacturing floors to critical facilities.
Eaton provides a policy offering a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Comprehensive documentation, catalogs, and datasheets are available, along with technical support to aid maintenance planning and spare-part availability for uptime optimization.