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Siemens JXD22B250L Molded Case Circuit Breaker
- 250A
- 2 Pole
- Unit Mount
Siemens
JXD22B250L
Molded Case Circuit Breaker
Brand
Siemens
SKU
JXD22B250L
Quantity
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Siemens JXD22B250L - 250A 2 Pole Molded Case Circuit Breaker
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Description
A versatile solution for standalone applications, the Siemens JXD22B250L is a 2-pole, 250A unit-mount molded case circuit breaker. It provides robust thermal-magnetic overcurrent protection for industrial and commercial facilities. Unlike its bolt-on counterparts, this JD-frame breaker includes line and load lugs (TA2J6500) for installation into individual enclosures or motor control centers. It is rated for 65kAIC at 240VAC and features an adjustable instantaneous magnetic trip.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JXD22B250L |
| Series | JXD2 |
| Amperage | 250A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 30kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, P4 Panelboards, P5 Panelboards, SB Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu/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, Rotary Handle, Motor Operator |
|---|---|
| Accessories | Includes Line and Load Lugs (TA2J6500) |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 2-Pole in 3-Pole Housing |
Product FAQs
6 answersWhat does the "L" suffix in the JXD22B250L catalog number indicate?
The "L" suffix means the breaker comes factory-assembled with line and load lugs (part number TA2J6500). If you order a part number without the "L", the frame and trip unit are shipped without lugs.
Can the Siemens JXD22B250L be reverse fed?
Yes. Because this breaker features a non-interchangeable trip unit and is not marked "Line" and "Load", it is suitable for reverse feed applications per UL 489 standards.
What is the difference between the Siemens JXD22B250L and the JXD62B250L?
The primary difference is the maximum voltage rating. The JXD22B250L is rated for up to 240V AC, while the JXD62B250L is rated for up to 600V AC. Both are 250A, 2-pole JD-frame breakers with identical physical dimensions.
Which Siemens panelboards are compatible with the JXD22B250L?
This unit-mount breaker is compatible with Siemens Sentron, P4, and P5 panelboards, as well as SB switchboards and motor control centers. Because it is a feed-thru breaker, it requires hard-wiring to the lugs rather than bolting directly to a panel busbar.
What replacement lug kit is compatible with the JXD22B250L?
The standard replacement lug kit is the TA2J6500, which accepts 3/0 AWG to 500 kcmil copper or aluminum wire.
What does the "LI" trip function code mean on this breaker?
The "LI" designation indicates that the thermal-magnetic trip unit provides Long-Time (L) overcurrent protection for overloads and Instantaneous (I) protection for short circuits. The thermal element is fixed, while the magnetic instantaneous trip is adjustable.
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