Siemens CMD63B800H Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Quantity
Siemens CMD63B800H - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for circuit protection, the Siemens CMD63B800H molded case circuit breaker has a rated current of 800A and a rated voltage of 600V. This 3-pole, 3-phase Sentron breaker has an MD frame and a 100kAIC interrupting rating at 480V. It features bolt-on terminals and thermal magnetic tripping with long-time and instantaneous protection. Standards include RoHS and REACh.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CMD63B800H |
| Series | CMD6 |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 480VAC |
| Frame Type | CMD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron P4, P5 Panelboards, Switchboards, Enclosures |
| Max Wire | 500 kcmil |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
6 answersWhat voltage rating should I use when selecting the Siemens CMD63B800H?
The rated voltage is 600V. Use this rating to select a breaker for a circuit whose operating voltage does not exceed 600V.
How do I check whether its interrupting rating is adequate at 480V?
Compare the available fault current at the installation point with the breaker's 100kAIC interrupting rating at 480V. The available fault current must not exceed that interrupting rating.
How does its thermal-magnetic LI trip protect the circuit?
Its thermal-magnetic trip includes long-time and instantaneous protection. Long-time protection addresses sustained overcurrent, while instantaneous protection responds to high fault current without intentional delay.
What type of electrical terminal connection should I plan for?
The terminal connection is bolt-on, so the electrical termination uses a bolted connection. Plan the termination work around that connection method.
What dimensions and weight should I account for during installation planning?
Allow for a width of 9.00 in and a depth of 6.00 in when planning installation space. Its 54.00 lb weight also needs to be accounted for when planning handling and support.
What does the three-phase, three-pole configuration mean?
The Siemens CMD63B800H has three poles, one for each phase conductor in a three-phase circuit. Review both phase and pole count when planning the circuit's conductor arrangement.
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