Siemens / ITE JKL3B150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Quantity
Siemens / ITE JKL3B150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the legacy JKL series, this 150A, 3-pole MCCB is engineered for heavy-duty commercial power distribution. It provides dependable thermal-magnetic protection for critical circuits. The bolt-on design ensures a secure fit into older Siemens and ITE P4, P5, S5, and CDP-6 panelboards. It serves as an exact replacement, avoiding the need for the FXD63B150 substitute and adapter kits. Rated 35 kAIC at 480VAC, this HACR-rated breaker features an interchangeable trip design.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | JKL3B150-R |
| Series | JKL |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | JKL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens / ITE P4, P5, S5, CDP-6 Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip |
Product FAQs
5 answersWhich panelboards accept the JKL3B150 circuit breaker?
This bolt-on J-frame breaker is designed for installation in Siemens and legacy ITE P4, P5, S5, and CDP-6 panelboards.
How is the trip unit configured on the JKL3B150?
It utilizes a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit tripping.
What conductor sizes are supported by the standard lugs?
The factory lugs accommodate copper or aluminum wire ranging from 4 AWG up to 300 kcmil. Always apply an approved oxide inhibitor when terminating aluminum conductors.
Can this breaker be utilized in DC distribution systems?
Yes, it carries a 250VDC rating with a 10kA interrupting capacity, allowing integration into compatible direct current control panels and distribution networks.
Does this breaker plug into the busbar or require bolted connections?
The JKL3B150 is a strictly bolt-on breaker. It must be mechanically bolted to the panelboard busbars and is not compatible with plug-in or load center applications.
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