Siemens CPD63B120 Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Quantity
Siemens CPD63B120 - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built to handle massive electrical loads, this 1200A molded case circuit breaker delivers dependable long-time and instantaneous fault protection. It fastens securely into Siemens Type S5 and SPP panelboards, along with Sentron switchboards and motor control centers. Equipped with an interchangeable thermal-magnetic trip unit, this PD-frame component achieves a 100kAIC rating at 480V, offering exceptional current-limiting performance for commercial facilities.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CPD63B120 |
| Series | CPD |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 65kA @ 600VAC, 30kA @ 250VDC, 50kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Type S5 Panelboards, Type SPP Panelboards, Sentron Switchboards, Motor Control Centers |
| Wire Gauge | 3-4 x 300-600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 300 kcmil |
| 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 | Line & Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Interchangeable Trip Unit |
Product FAQs
6 answersWhich Siemens panelboards and switchboards are compatible with the CPD63B120 breaker?
This unit mount PD frame breaker is designed for installation in Siemens Type S5 and Type SPP panelboards, as well as Sentron switchboards and motor control centers.
What are the standard lug wire size requirements for this 1200A breaker?
The factory lugs accept 3 to 4 conductors per phase, accommodating 300 to 600 kcmil aluminum or copper wire. Ensure proper torque specifications are followed during installation to prevent thermal issues.
Does the CPD63B120 feature adjustable trip settings?
Yes, it utilizes a thermal magnetic trip unit with fixed thermal (Long-Time) protection and an adjustable magnetic (Instantaneous) trip function. This allows panel builders to tune the short-circuit response based on the specific load requirements.
Is this breaker rated for direct current (DC) applications?
Yes, in addition to its AC ratings, this breaker is rated for DC systems. It provides a 30kA interrupting capacity at 250VDC and 50kA at 500VDC, making it versatile for specialized industrial power systems.
What frame size does the CPD63B120 belong to?
This breaker is part of the Siemens Sentron series PD frame group. When sourcing internal accessories like shunt trips, undervoltage releases, or auxiliary switches, ensure they are specifically listed for Sentron PD frames.
What is the maximum fault current this breaker can safely interrupt at 480V?
It features a high interrupting rating of 100kA at 480VAC. This robust rating ensures safe clearing of severe faults, making it suitable for heavy industrial facilities with high available fault currents.
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