Eaton / Cutler-Hammer HJD2100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer HJD2100 - 100A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for industrial applications, this 100A, two-pole breaker provides reliable long-time and instantaneous (LI) protection. The HJD prefix denotes a robust 65kAIC rating at 480VAC. Integration into Eaton Series C panelboards and motor control centers utilizes a standard unit-mount configuration. It accommodates 4 AWG to 350 kcmil conductors. Thermal-magnetic technology ensures accurate response with adjustable magnetic settings. This HACR-rated unit supports reverse feed layouts.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HJD2100-R |
| Series | HJD |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | JD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil |
| 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, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
8 answersCan the Eaton HJD2100 replace older Westinghouse J-frame circuit breakers?
Yes, Eaton Series C circuit breakers are backward compatible with legacy Westinghouse and Cutler-Hammer Series C enclosures and panelboards.
What does the H in the HJD2100 part number indicate?
The H designates this as a High Interrupting Capacity breaker within the Series C J-frame family. It provides a 65 kAIC rating at 480 Vac, compared to the standard JD frame which has a lower interrupting capacity.
Is the magnetic trip on the HJD2100 adjustable?
Yes, this thermal-magnetic breaker features a fixed thermal trip for overload protection and an adjustable magnetic trip for short-circuit protection. The magnetic response can be adjusted using the dial on the front of the trip unit to coordinate with downstream devices.
Can the HJD2100 be reverse fed?
Yes, standard Eaton Series C thermal-magnetic J-frame breakers like the HJD2100 can be reverse fed. They are suitable for applications where power is supplied to either the line or load terminals.
Are internal accessories like shunt trips or auxiliary switches field-installable on the HJD2100?
Yes, Eaton Series C J-frame breakers support field-installed internal accessories. Auxiliary switches, alarm switches, and shunt trips can be mounted in the accessory pockets located under the breaker cover.
What type of wire conductors are compatible with the standard lugs on the HJD2100?
The included line and load side mechanical lugs are dual-rated for both aluminum and copper conductors, accepting wire sizes from 4 AWG to 350 kcmil.
How is the HJD2100 mounted inside an enclosure?
As a unit-mount, feed-thru breaker, the HJD2100 bolts directly to the backpan or mounting surface using mounting hardware, rather than plugging onto a busbar. It is designed for Eaton Series C panelboards, switchboards, and motor control centers.
What does the LI trip function code mean on the HJD2100?
LI indicates that the thermal-magnetic trip unit provides Long-Time overload protection and Instantaneous short-circuit protection. The Long-Time function is fixed, while the Instantaneous magnetic pickup is adjustable.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- JWJoe W.Verified BuyerReviewingSiemens HJD63F400 Circuit Breaker FrameI recommend this productRated 5 out of 5 stars7/16/26Exactly what we needed, delivered complete and on time.
SuperBreakers had exactly what we needed (Breaker, Trip Unit, lug kits) - the breaker came quickly and with trip unit installed (ordered as a separate item) making integration quick and easy.
Solid phone support and communication re: tracking - overall a very good purchasing experience.