Siemens JL2B100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Quantity
Siemens JL2B100 - 100A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for heavy-duty industrial applications, this 100A thermal-magnetic breaker delivers reliable long-time and instantaneous trip functions. It carries a robust 65kAIC rating at 240VAC and a 25kAIC rating at 600VAC, ensuring safety across diverse electrical distributions. The unit installs into Siemens P4 and P5 panelboards, switchboards, and motor control centers. It is also fully compatible with legacy ITE FC-1 panelboards and can substitute for JD2B100 or JXD2B100 models.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JL2B100-R |
| Series | JL |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | JL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, Switchboards, Motor Control Centers, Legacy ITE FC-1 Panelboards |
| 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 | UL 489, CSA C22.2 No. 5, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
5 answersWhich panelboards and enclosures accept the JL2B100 breaker?
This breaker is designed for use in Siemens P4 and P5 panelboards, switchboards, and motor control centers. It is also compatible with legacy ITE FC-1 panelboards.
How is the trip unit configured on this breaker?
It features a thermal magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Is the JL2B100 suitable for DC applications?
Yes, this breaker is rated for direct current systems and provides an interrupting capacity of 30kA at 250VDC.
Can this be used to replace older ITE JL frame breakers?
Yes. Siemens acquired ITE, and this breaker serves as a direct replacement for legacy ITE JL frame breakers with matching specifications.
Does this breaker mount directly to the panel bus?
This is a bolt-on breaker. When installing it in Siemens P4 or P5 panelboards, you will need a panel-specific mounting strap kit or hardware assembly to properly connect it to the bus.
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