Eaton / Cutler-Hammer JDB3100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
JDB3100
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
JDB3100
Quantity
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Eaton / Cutler-Hammer JDB3100 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial power distribution, the Eaton JDB3100 is a 3-pole, 100A molded case circuit breaker from the proven Series C family. It installs into standard Eaton panelboards, switchboards, and motor control centers using a unit-mount configuration. Rated for 65kAIC at 240VAC and 35kAIC at 480VAC, this J-Frame breaker features a non-interchangeable thermal-magnetic trip unit providing reliable long-time and instantaneous (LI) protection.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JDB3100 |
| Series | JDB |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Mechanism |
|---|---|
| Accessories | Line and Load Lugs Included (TA250KB) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhat equipment is the JDB3100 designed to fit?
It mounts into standard Eaton Series C panelboards, switchboards, and motor control centers that accept J-Frame breakers.
Can the Eaton JDB3100 be reverse fed?
Yes, this breaker is suitable for reverse feed applications, meaning you can wire the line connections to either the top or bottom terminals without affecting its protective functions.
What specific lugs are included with the JDB3100?
The breaker comes standard with TA250KB line and load lug terminals, which accommodate 4 AWG to 350 kcmil aluminum or copper conductors.
Is the JDB3100 rated for HVAC applications?
Yes, this breaker is HACR rated, meaning it is approved for use with commercial heating, air conditioning, and refrigeration equipment.
Can the trip unit on the JDB3100 be swapped or adjusted?
No, the JDB3100 features a factory-sealed, non-interchangeable thermal-magnetic trip unit. Both the long-time and instantaneous trip functions are fixed and cannot be adjusted or replaced in the field.
Can I use the JDB3100 to replace older Westinghouse breakers?
Yes, the Eaton JDB3100 is a direct replacement for legacy Cutler-Hammer and Westinghouse JDB series 100A, 3-pole breakers, sharing the exact same J-Frame dimensions and mounting configuration.
Can I add field accessories like a shunt trip to the JDB3100?
Yes, the JDB3100 supports standard Eaton Series C J-Frame internal accessories, including shunt trips, auxiliary switches, and undervoltage releases.
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