Eaton / Cutler-Hammer HMDLB3800FT36W Molded Case Circuit Breaker
- 800A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer HMDLB3800FT36W - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Delivering advanced ground fault protection, the HMDLB3800FT36W is an 800A, 3-pole Series C M-Frame molded case circuit breaker. It is built for commercial facilities requiring robust power distribution up to 600VAC. This bolt-on MCCB mounts into Eaton Pow-R-Line 4 panelboards and switchboards. It includes standard lug terminals and supports reverse-feed applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HMDLB |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 25kA @ 250VDC |
| Frame Type | MDL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line 4 (PRL4) Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lugs |
|---|---|
| Accessories | Digitrip 310+ Electronic Trip Unit (LSIG) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, True RMS Sensing, High Interrupting Capacity |
Product FAQs
6 answersWhat type of electronic trip unit is installed in the HMDLB3800FT36W?
It is equipped with an Eaton Digitrip 310+ electronic trip unit, indicated by the "36" in the catalog suffix. This provides fully adjustable LSIG (Long-Time, Short-Time, Instantaneous, and Ground-Fault) protection, allowing for precise curve shaping and advanced system coordination.
Does the HMDLB3800FT36W come with lug terminals installed?
No. The "W" suffix in the catalog number indicates this breaker is supplied from the factory without terminals. You will need to purchase the appropriate line and load lug kits or bus connectors separately based on your specific wire size and application.
Can the HMDLB3800FT36W be reverse fed?
Yes. Because it is an HMDLB-frame breaker with a factory-assembled, non-interchangeable trip unit, it is suitable for reverse-feed applications. This makes it versatile for use in switchboards and motor control centers where bottom-feeding is required.
Is the HMDLB3800FT36W a 100% rated circuit breaker?
No, this is a standard 80% rated breaker. If your application requires a 100% continuous current rating, you would need the CHMDLB version, such as the CHMDLB3800FT36W, installed in an enclosure approved for 100% rated operation.
Does this breaker provide ground fault equipment protection?
Yes, the "G" in the LSIG trip unit designates Ground-Fault protection. This is critical for protecting equipment from low-level arcing ground faults that might not draw enough current to trip standard thermal-magnetic or LSI breakers.
What is the difference between HMDL and HMDLB frames?
The "B" in HMDLB indicates that the breaker is factory-assembled with a non-interchangeable trip unit, which allows it to be reverse-fed. Standard HMDL frames have interchangeable trip units and are typically not rated for reverse feeding.
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