Siemens CMD63B700 Molded Case Circuit Breaker
- 700A
- 3 Pole
- Unit Mount
Quantity
Siemens CMD63B700 - 700A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Rated for heavy-duty industrial environments, this 700A unit mount molded case circuit breaker features a fixed thermal and adjustable magnetic trip unit. The Siemens CMD63B700 delivers exceptional current-limiting performance with a 100kA interrupting capacity at 480VAC. It installs into Sentron P4 and P5 panelboards, switchboards, and standalone enclosures. Built without lugs for custom termination, it provides robust fuseless protection for critical high-capacity feeder circuits.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CMD63B700 |
| Series | CMD6 |
| Amperage | 700A |
| 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 | (3) 1/0 AWG - 500 kcmil (Cu/Al) |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| 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
7 answersHow many conductors per phase does the CMD63B700 accept?
The standard lug configuration accepts three 1/0 AWG to 500 kcmil copper or aluminum conductors per phase. When routing three large cables per pole, verify that your panelboard or enclosure provides adequate wire bending space to meet NEC requirements.
What is the instantaneous trip range for the CMD63B700?
While the thermal continuous current is fixed at 700A, the instantaneous magnetic trip is adjustable from 4000A to 8000A. This allows panel builders to dial in short-circuit protection for proper system coordination.
What type of panelboards accept the CMD63B700 breaker?
This MD Frame breaker bolts directly into Siemens Sentron P4 and P5 panelboards, as well as compatible Siemens switchboards and standalone enclosures.
Is the CMD63B700 suitable for DC power applications?
Yes, this breaker is rated for DC systems. It delivers a 50kA interrupting capacity at 250VDC and a 25kA interrupting capacity at 500VDC.
Does the CMD63B700 offer current-limiting protection?
Yes, the CMD frame utilizes a fuseless, current-limiting design. This restricts peak let-through current during a fault, providing enhanced protection for downstream circuits and equipment.
What are the physical dimensions of the CMD63B700?
The breaker measures 16 inches tall, 9 inches wide, and 6 inches deep. The depth extends to 8.25 inches when including the handle protrusion.
Does the CMD63B700 have an interchangeable trip unit?
No, this specific model comes with a factory-sealed, non-interchangeable thermal magnetic trip unit. If your application requires an interchangeable trip unit, you must select a different MD frame breaker.
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