Siemens / ITE ET5913 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Quantity
Siemens / ITE ET5913 - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the legacy SENTRON family, the Siemens ET5913 is a 125A, 3-pole MCCB engineered for 600VAC applications. Equipped with a thermal-magnetic trip unit, it provides essential long-time and instantaneous protection for industrial networks. Designed for seamless integration, this unit mount breaker fits ITE FC-I and FC-II switchboards. Facility managers can cross-reference this model to the newer JXD63B125. It features a 25kAIC rating at 240V and accommodates 4 AWG to 350 kcmil wiring.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | ET5913-R |
| Series | ET |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | ITE / Siemens Panelboards (CDP-6, S5, P5), Switchboards (FC-I, FC-II) |
| Wire Gauge | 4 AWG - 350 kcmil (Cu/Al) |
| Max Wire | 350 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break, 40C Calibration |
Product FAQs
6 answersWhich Siemens and ITE panelboards accept the ET5913?
This breaker is compatible with Siemens and legacy ITE CDP-6, S5, and P5 panelboards, as well as FC-I and FC-II switchboards. Verify your enclosure's specific frame requirements before installation.
What wire sizes are accepted by the lugs on this breaker?
The included lugs accept copper or aluminum wire ranging from 4 AWG to 350 kcmil. Ensure proper torque specifications are followed during installation to prevent terminal overheating.
How does the trip unit function on the ET5913?
It features a thermal-magnetic trip unit with fixed thermal protection for long-time overloads and an adjustable magnetic setting for instantaneous short-circuit protection. This allows you to fine-tune the magnetic response to suit specific load requirements.
How is the ET5913 installed into a panel?
The ET5913 is a unit-mount circuit breaker. It bolts directly to the mounting surface or backpan of compatible switchboards and panelboards, such as the FC-I and FC-II, rather than plugging onto a busbar.
Can this breaker replace older ITE ET series breakers?
Yes, the ET5913 is a direct replacement for legacy ITE ET series breakers. Using this exact replacement helps avoid the downtime and modification costs associated with upgrading to newer breaker frames.
Is the ET5913 rated for DC voltage applications?
Yes, in addition to its AC ratings up to 600VAC, this breaker is rated for 250VDC applications with a 10kA interrupting capacity, making it suitable for specific industrial DC control circuits.
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