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Siemens JD3B225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Siemens
JD3B225
Molded Case Circuit Breaker
Brand
Siemens
SKU
JD3B225
Quantity
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Siemens JD3B225 - 225A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty power distribution, the Siemens JD3B225 is a 225A, three-pole MCCB. It ensures consistent performance across commercial systems. The unit-mount design allows for integration into Siemens Sentron P4 and P5 panelboards, as well as switchboards. It replaces the JD63B225 breaker. This JD-frame device utilizes a thermal-magnetic trip mechanism with fixed thermal and adjustable magnetic settings. It provides 65kAIC at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JD3B225 |
| Series | JD |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC, 25kA @ 500VDC |
| Frame Type | JD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P4, P5), Switchboards, Enclosures, Motor Control Centers |
| Wire Gauge | (1) 3/0 AWG - 500 kcmil (Cu), (1) 4/0 AWG - 500 kcmil (Al) |
| 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 | Line and Load Lugs (TA2J6500) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit |
Product FAQs
7 answersWhat panelboards and equipment are compatible with the JD3B225 breaker?
This unit mount breaker is designed for installation in Siemens Sentron Type P4 and P5 panelboards, as well as compatible switchboards, enclosures, and motor control centers.
What wire sizes are accepted by the standard lugs on the JD3B225?
The standard lugs accept one 3/0 AWG to 500 kcmil copper conductor, or one 4/0 AWG to 500 kcmil aluminum conductor per phase.
Which lug kit is typically used with the JD3B225 circuit breaker?
The TA2J6500 aluminum body lug kit is commonly used for line and load side terminations on 200A to 400A JD frame breakers.
Can the JD3B225 be used in DC electrical systems?
Yes, this breaker is rated for DC applications, providing an interrupting capacity of 30kA at 250VDC and 25kA at 500VDC.
How is the trip unit configured on the JD3B225?
It features a thermal magnetic trip unit with a fixed thermal setting for overload protection and an adjustable magnetic setting for short circuit protection.
What is the modern replacement for the JD3B225 circuit breaker?
For newer installations or when replacing this classic J-Frame model, the Siemens JD63B225 is typically used as the modern substitute.
What does the LI trip function code indicate on this breaker?
The LI designation means the breaker provides Long-Time protection against overloads and Instantaneous protection against short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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2 reviews
- DCDanielson C.ReviewingSiemens JD63F400 FrameI recommend this productRated 5 out of 5 stars1/17/24Perfect
Just what I was looking for!
- IHIsaac H.Rated 5 out of 5 stars3/11/21GREAT STUFF
GOOD PRODUCTS AT A GREAT PRICE