Eaton / Cutler-Hammer HMDLB3800FT33W Molded Case Circuit Breaker
- 800A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer HMDLB3800FT33W - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for industrial power distribution, the HMDLB3800FT33W is an 800A, 3-pole Series C M-Frame molded case circuit breaker. It provides reliable protection for heavy-duty systems up to 600VAC. This bolt-on MCCB installs into Eaton Pow-R-Line 4 panelboards, switchboards, and motor control centers. It features standard lug terminals and a reverse-feed capable design.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HMDLB3800FT33W |
| 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 | LS |
| Trip Function | Long-Time, Short-Time |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lugs |
|---|---|
| Accessories | Digitrip 310+ Electronic Trip Unit (LS) |
| 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 answersWhich Eaton enclosures are compatible with the HMDLB3800FT33W?
This M-Frame breaker is designed for installation in Eaton Pow-R-Line 4 (PRL4) panelboards, switchboards, and motor control centers.
What does the LS trip function on this breaker indicate?
The LS designation means the electronic trip unit includes adjustable Long-Time and Short-Time pickup settings. This allows panel builders to fine-tune overload and short-circuit protection for better system coordination.
What is the difference between the HMDL and standard MDL frames?
The "H" in HMDLB3800FT33W stands for High-Interrupting. While it shares the same physical dimensions as a standard MDL frame, it provides a higher interrupting capacity, rated up to 65kAIC at 480VAC.
What does the T33W suffix mean in the HMDLB3800FT33W catalog number?
The "T33W" indicates that the breaker is equipped with a factory-installed Digitrip 310 electronic trip unit configured specifically for Long-Time and Short-Time (LS) protection.
How is the HMDLB3800FT33W connected within a power system?
It utilizes a bolt-on, feed-thru connection design. The breaker secures directly to the bus and includes standard lug terminals for terminating the line and load conductors.
How does the Short-Time trip setting improve system safety?
The Short-Time function introduces a slight intentional delay during a fault. This allows smaller downstream breakers closer to the fault to trip first, isolating the problem without shutting down the entire main panel.
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