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Eaton / Cutler-Hammer EHC3090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
EHC3090
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EHC3090
Quantity
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Eaton / Cutler-Hammer EHC3090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial environments, the Eaton EHC3090 is a 90A molded case circuit breaker from the Series C family. It provides dependable thermal-magnetic protection. This three-pole F-Frame breaker mounts into compatible Eaton Series C panelboards and motor control centers. It utilizes a bolt-on configuration and is cross-referenced with the EHD3090. Rated for 14 kAIC at 480VAC, the unit ensures adequate fault clearing. It features fixed trip settings and an HACR rating for HVAC use.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | EHC |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | EHC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
8 answersWhat equipment is compatible with the EHC3090 circuit breaker?
The EHC3090 is designed for installation in Eaton Series C panelboards, switchboards, and motor control centers that accept 3-pole F-Frame bolt-on breakers.
Can the EHC3090 be applied in DC electrical systems?
Yes, in addition to its AC ratings, this breaker is rated for use in DC systems up to 250VDC, where it provides an interrupting capacity of 10kAIC.
What wire sizes do the standard terminals on the EHC3090 accept?
The factory-installed lugs accommodate wire gauges ranging from 14 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation to prevent terminal overheating.
How does the physical size of the EHC3090 compare to other Eaton breakers?
As an F-Frame breaker in the Series C family, the EHC3090 shares the same physical dimensions as other 3-pole F-Frame breakers, such as the EHD, FD, and HFD series.
Can the trip curve on the EHC3090 be adjusted in the field?
No, this breaker is equipped with a thermal-magnetic trip unit that features fixed long-time and fixed instantaneous (LI) trip functions. The trip settings are factory-calibrated and cannot be modified.
Is the EHC3090 compatible with standard plug-on load centers?
No, the EHC3090 is a bolt-on circuit breaker designed for commercial and industrial panelboards. It requires bolted connections to the bus and will not fit in standard residential plug-on load centers.
Are Eaton F-Frame breakers like the EHC3090 suitable for reverse feed applications?
Yes, Eaton Series C F-Frame molded case circuit breakers are suitable for reverse feed use, allowing line and load connections to be swapped if required by the panel configuration.
Is the EHC3090 HACR rated for HVAC applications?
Yes, all Eaton Series C F-Frame circuit breakers, including the EHC3090, carry an HACR rating for use with heating, air conditioning, and refrigeration equipment.
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