Siemens / ITE ET4035 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Quantity
Siemens / ITE ET4035 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for demanding commercial environments, this 50A thermal-magnetic breaker delivers proven long-time and instantaneous trip functions. It handles up to 600VAC or 250VDC, making it highly versatile for various industrial applications. This component installs into legacy ITE and Siemens F-frame panelboards without requiring retrofitting kits. Facility managers can use this breaker to safely maintain existing systems, as it is the exact predecessor to the F3B050 model.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | ET4035-R |
| Series | ET |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | ITE / Siemens F-Frame Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs Not Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Standard Interrupting Capacity |
Product FAQs
5 answersWhich panelboards are compatible with the ET4035 circuit breaker?
This unit-mount breaker installs directly into legacy ITE and Siemens F-Frame panelboards. It is designed as an exact fit, allowing you to maintain existing systems without the need for retrofitting kits.
What is the modern equivalent to the ET4035 breaker?
The ET4035 is the direct predecessor to the Siemens F3B050 molded case circuit breaker.
What wire sizes and materials are accepted by the ET4035 terminals?
The included lugs are rated for both copper and aluminum conductors, accepting wire gauges from 14 AWG up to 1/0 AWG.
How does the trip unit on the ET4035 operate?
It utilizes a fixed thermal-magnetic trip unit that provides long-time and instantaneous (LI) protection to safeguard commercial and industrial systems against overloads and short circuits.
Is the ET4035 suitable for DC power applications?
Yes, this breaker is rated for use in DC systems up to 250VDC, making it versatile for industrial applications beyond standard AC distribution.
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