Siemens LMXD62B800 Molded Case Circuit Breaker
- 800A
- 2 Pole
- Unit Mount
Quantity
Siemens LMXD62B800 - 800A 2 Pole Molded Case Circuit Breaker
New
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Description
Engineered for industrial applications, the Siemens LMXD62B800 is a 2-pole, 800A MCCB from the Sentron LMD frame family. This unit-mount breaker installs into Siemens Sentron panelboards and switchboards. Supplied without lugs, it serves as a legacy component replaceable by the 3VA55 series via retrofit. It features a non-interchangeable thermal-magnetic trip with fixed thermal and adjustable magnetic settings, providing a 65kAIC rating at 240V.Specifications
| Brand | Siemens |
|---|---|
| Series | LMXD6 |
| Amperage | 800A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | LMD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| 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, Mechanical Interlock |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism, HACR Rated |
Product FAQs
6 answersWhat is the difference between the Siemens LMXD62B800 and the LMD62B800?
The LMXD62B800 features a factory-sealed, non-interchangeable thermal-magnetic trip unit. The LMD62B800 uses the same LMD frame but is equipped with an interchangeable trip unit, allowing the trip mechanism to be swapped or upgraded in the field.
What is the high-interrupting equivalent of the LMXD62B800?
The HLMXD62B800 is the high-interrupting equivalent. It shares the exact same physical dimensions and LMD frame footprint but offers a higher interrupting capacity of 65kA at 480VAC, compared to the 50kA at 480VAC rating of the standard LMXD62B800.
Which lug kits are compatible with the LMXD62B800 circuit breaker?
Standard mechanical lug options for the 800A LMD frame include the TA2K500 (accepts up to two #1 AWG to 500 kcmil Cu/Al wires), TA3K500 (accepts up to three #1/0 AWG to 500 kcmil Cu/Al wires), and TA2N750 (accepts up to two 500 to 750 kcmil Cu/Al wires).
What is the adjustable magnetic trip range for this 800A breaker?
The instantaneous magnetic trip on the LMXD62B800 can be adjusted from 3200A to 8000A. This allows electricians to coordinate the breaker with specific load inrush requirements and prevent nuisance tripping.
What types of Siemens equipment can the LMXD62B800 be installed in?
This unit-mount, bolt-on breaker is designed for use in Siemens Sentron panelboards, switchboards, and individual standalone enclosures. It is commonly installed in P4 and P5 panelboards, as well as SB1, SB2, and SB3 switchboards.
Can the LMXD62B800 be used in direct current (DC) applications?
Yes, this 2-pole breaker is rated for use on 250VDC systems. It provides a 30kA interrupting capacity at 250VDC, making it suitable for various industrial DC power applications.
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