Siemens / ITE K3B200 Molded Case Circuit Breaker
- 200A
- 3 Pole
- Bolt-On
Quantity
Siemens / ITE K3B200 - 200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for legacy power systems, this 200-amp Siemens K3B200 molded case circuit breaker delivers robust overcurrent protection. It features a 3-pole configuration rated for up to 600VAC in commercial and industrial environments. The unit fastens into Siemens P4 and P5 panelboards, offering a precise fit for older enclosures. As a discontinued K-Frame model, it is officially substituted by the JXD63B200 but serves as an exact match for existing setups. Interrupting capacity is 25kA at 240V.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | K3B200-R |
| Series | K3B |
| Amperage | 200A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 14kA @ 600VAC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, Trip-Free Mechanism |
Product FAQs
4 answersCan the K3B200 be installed in standard load centers?
No, this K-frame breaker is designed specifically for commercial and industrial applications. It is compatible only with Siemens P4 and P5 panelboards or switchboards, not standard residential load centers.
Why does the K3B200 feature an adjustable magnetic trip?
The adjustable magnetic instantaneous trip allows electricians to fine-tune the breaker's response to short circuits and high inrush currents. This helps prevent nuisance tripping while maintaining optimal equipment protection.
Can the Siemens K3B200 replace older ITE branded versions?
Yes, Siemens acquired ITE and continued manufacturing the same K-frame designs. A Siemens K3B200 is a direct mechanical and electrical replacement for the original ITE K3B200.
Does the K3B200 require a specific mounting kit?
As a bolt-on breaker for P4 and P5 panelboards, it requires the correct K-frame mounting strap kit to secure the connections to the busbar. Ensure the panelboard is equipped with the appropriate hardware prior to installation.
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