Eaton / Cutler-Hammer HLD3450 Molded Case Circuit Breaker
- 450A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer HLD3450 - 450A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the Eaton Series C family, this 450A L-Frame unit mount breaker provides reliable long-time and instantaneous (LI) protection for commercial and industrial systems. It installs into Pow-R-Line 3a and 4 panelboards, switchboards, and motor control centers. The HLD prefix denotes high interrupting capacity, delivering 65kAIC at 480VAC. It features a fixed thermal and adjustable magnetic trip unit, reverse feed capability, and includes line and load lugs accepting 3/0 AWG to 350 kcmil wire.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HLD |
| Amperage | 450A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 25kA @ 250VDC |
| Frame Type | LD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line 3a Panelboards, Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 3/0 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 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, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Line and Load Terminals |
| Standards | HACR, NEMA AB 1, UL 489, IEC 60947-2 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Interchangeable Trip Unit |
Product FAQs
6 answersWhat panelboards are compatible with the Eaton HLD3450?
The HLD3450 is designed for use in Eaton Pow-R-Line 3a and Pow-R-Line 4 panelboards, as well as compatible switchboards and motor control centers.
What is the difference between the Eaton LD3450 and HLD3450 circuit breakers?
The HLD3450 is the high-interrupting capacity version of the standard LD3450. While both are 450A, 3-pole L-Frame breakers, the HLD3450 provides a higher interrupting rating of 65kAIC at 480VAC, compared to the standard LD frame which is rated for 35kAIC at 480VAC.
What wire sizes do the standard lugs on the HLD3450 accept?
The standard line and load lugs for this breaker accept two 3/0 AWG to 350 kcmil wires per phase.
How does the trip unit function on the HLD3450?
This breaker features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Can the HLD3450 be reverse fed?
Yes, the HLD3450 features a feed-thru connection type and is capable of being reverse fed in standard applications.
Where can I find the correct lug torque specifications for the HLD3450?
Torque values for the line and load terminals are printed directly on the circuit breaker nameplate or the installed lug. Always use a calibrated torque wrench during installation to prevent terminal overheating or nuisance tripping.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- WWWilliam W.Rated 5 out of 5 stars9/22/19Breaking up is hard to do
Great Buy ! Showroom condition. Shipped Fast !!!