Siemens CMD63B600 Molded Case Circuit Breaker
- 600A
- 3 Pole
- Unit Mount
Quantity
Siemens CMD63B600 - 600A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Belonging to the Siemens Sentron family, the CMD63B600 provides 600A of 3-pole protection for commercial power distribution. This MD frame device delivers reliable long-time and instantaneous (LI) thermal-magnetic trip functions. It installs into Siemens P4 and P5 panelboards, switchboards, and standalone enclosures. It also serves as a direct replacement for legacy MD63B600 breakers. Rated at 100 kAIC at 480VAC, it features fuseless current limiting capabilities. Lugs are not included.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CMD63B600 |
| Series | CMD6 |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 65kA @ 600VAC, 50kA @ 250VDC, 25kA @ 500VDC |
| Frame Type | CMD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron P4, P5 Panelboards, Switchboards, Enclosures |
| Wire Gauge | (2) 1 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 1 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, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, High Interrupting Capacity, HACR Rated, Non-Interchangeable Trip |
Product FAQs
5 answersWhich Siemens panelboards accommodate the CMD63B600 circuit breaker?
This Sentron MD-frame breaker is designed for use in Siemens Sentron P4 and P5 panelboards, as well as compatible Siemens switchboards and standalone enclosures. It utilizes a standard bolt-on mounting connection.
What wire sizes are supported by the standard lugs on this 600A breaker?
The factory lugs accept two conductors per phase, sized from 1 AWG to 500 kcmil. The terminals are rated for both copper and aluminum wiring.
How is the thermal-magnetic trip unit configured on the CMD63B600?
This breaker features a fixed thermal and adjustable magnetic trip mechanism, providing standard long-time and instantaneous (LI) protection functions.
Is the Siemens CMD63B600 rated for direct current (DC) systems?
Yes, in addition to its standard AC ratings, this breaker is rated for DC applications. It provides an interrupting capacity of 50kA at 250VDC and 25kA at 500VDC.
Can I use the CMD63B600 to replace an older MD-frame circuit breaker?
Yes, because it is part of the Siemens Sentron MD-Frame family, this unit will match the physical dimensions and mounting footprint for existing 600A bolt-on MD-frame applications.
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