Siemens MXD62B800 Molded Case Circuit Breaker
- 800A
- 2 Pole
- Unit Mount
Quantity
Siemens MXD62B800 - 800A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
The Siemens MXD62B800 molded case circuit breaker protects circuits against overloads and short circuits. Rated 800A with 2 poles, it supports 240VAC, 480VAC, 600VAC and 250VDC, with interrupting ratings of 25kAIC at 600V and 50kAIC at 480V. The MD6 series MD-Frame uses unit mounting and bolt-on terminals. Its thermal magnetic trip provides fixed thermal and adjustable magnetic settings with long-time and instantaneous functions. Approvals include UL and IEC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MXD62B800 |
| Series | MXD6 |
| Amperage | 800A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 25kA @ 250VDC |
| Frame Type | MD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Motor Control Centers, SB Switchboards, and FPP Panelboards |
| Max Wire | 500 kcmil |
| Min Wire | 1/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Standards | UL 489 |
|---|---|
| Approval | IEC, UL |
| Temp Rating | 40C |
Product FAQs
7 answersHow should I use the 800A rating when selecting the Siemens MXD62B800?
The Siemens MXD62B800 has an 800A rated current. Use that rating when coordinating the circuit load, conductor ampacity and overcurrent protection requirements.
What voltage and frequency should I check before selecting this breaker?
The Siemens MXD62B800 is rated for 240VAC, 480VAC, 600VAC and 250VDC, with a rated AC frequency of 50/60Hz. Match both the system voltage and AC or DC service when selecting the breaker, and check frequency for AC applications.
How do I check the interrupting rating against available fault current?
The interrupting rating is 50kAIC at 480V and 25kAIC at 600V. At the installation point, available fault current must not exceed the interrupting rating for the applicable system voltage.
What can I adjust on the thermal-magnetic trip?
The thermal setting is fixed and provides long-time protection against sustained overloads. The magnetic pickup is adjustable and provides instantaneous protection against high-current faults, allowing that response to be coordinated with circuit requirements.
How much installation space should I plan for this unit-mount breaker?
The breaker measures 16 in high, 9 in wide and 6 in deep and uses unit mounting. Use those dimensions to lay out its mounting location, while allowing working space for conductor routing and termination.
What should I plan for when making the terminal connections?
The Siemens MXD62B800 uses bolt-on terminal connections. Plan for bolted electrical terminations and access to secure the connections during installation.
What do the pole count and phase rating mean for circuit planning?
The Siemens MXD62B800 has 2 poles and a single-phase rating. The pole count tells you how many current paths the breaker interrupts; the phase rating guides your review of the circuit's phase arrangement.
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