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Siemens / ITE JJ3B225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Bolt-On
Siemens / ITE
JJ3B225
Molded Case Circuit Breaker
Brand
Siemens / ITE
SKU
JJ3B225
Quantity
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Siemens / ITE JJ3B225 - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
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Description
Providing essential overcurrent defense for industrial facilities, this 225-amp molded case circuit breaker utilizes fixed thermal and adjustable magnetic trip functions. It fastens securely into Siemens P4 and P5 panelboards, as well as SB switchboards and FCI interiors. With an impressive 65kA interrupting capacity at 240V, it manages severe electrical faults effectively. This specific unit serves as a reliable maintenance replacement for aging infrastructure prior to a JXD63B225 upgrade.Specifications
| Brand | Siemens / ITE |
|---|---|
| Series | JJ |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | JJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, SB Switchboards, FC/FCI/FCII Distribution Interiors |
| Wire Gauge | 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 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 |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
5 answersWhat type of enclosures or interiors accept the JJ3B225 breaker?
The JJ3B225 is a bolt-on breaker specifically designed to mount in Siemens P4 and P5 panelboards, SB switchboards, and legacy FC, FCI, and FCII distribution interiors.
Are the lugs on the JJ3B225 rated for both aluminum and copper conductors?
Yes, the standard lugs are dual-rated for both aluminum and copper wire, accepting conductor sizes from 3/0 AWG up to 500 kcmil.
How does the trip unit function on the JJ3B225?
This breaker utilizes a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal element is fixed for standard overload protection, while the magnetic element is adjustable to fine-tune the short-circuit response.
Is the JJ3B225 suitable for direct current systems?
Yes, this breaker is certified for use in DC systems up to 250VDC, providing a 20kA interrupting rating for direct current applications.
Is there a difference between the Siemens and ITE versions of the JJ3B225?
No, Siemens acquired ITE and continued producing this legacy J-Frame line. The JJ3B225 catalog number represents the exact same physical breaker whether it carries a Siemens or an ITE label.
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