Siemens / ITE JK2B175 Molded Case Circuit Breaker
- 175A
- 2 Pole
- Bolt-On
Quantity
Siemens / ITE JK2B175 - 175A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
A drop-in replacement for legacy commercial systems, the Siemens JK2B175 delivers reliable 175A overcurrent protection. This J-Frame molded case circuit breaker features a thermal magnetic trip unit with adjustable magnetic settings. Engineered for bolt-on mounting, it installs into Siemens P4 and P5 panelboards, plus older ITE CDP switchboards. It serves as a direct substitute for JXD62B175 models. Rated for 18kAIC at 600VAC, this two-pole breaker includes an interchangeable trip unit.Specifications
| Brand | Siemens / ITE |
|---|---|
| Series | JK |
| Amperage | 175A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | JK |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4 Panelboards, Siemens P5 Panelboards, ITE CDP Panelboards, Switchboards |
| 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, Lug Kits, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | UL 489, NEMA AB-1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, HACR Rated |
Product FAQs
5 answersWhich panelboards are compatible with the JK2B175 circuit breaker?
This bolt-on breaker is designed for use in Siemens P4 and P5 panelboards, legacy ITE CDP panelboards, and compatible switchboards.
What wire sizes are accepted by the standard lugs on the JK2B175?
The standard lugs accept wire gauges from 4 AWG up to 300 kcmil. They are rated for both copper (Cu) and aluminum (Al) conductors.
Can the Siemens JK2B175 be used in DC voltage applications?
Yes, this breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 10kA at that voltage.
How does the trip unit function on the JK2B175?
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 JK2B175 a current production model or a legacy frame?
The JK frame is a legacy molded case circuit breaker originally manufactured by ITE and later by Siemens. It is typically sourced as a direct replacement for existing installations.
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