Siemens / ITE ET50-335 Molded Case Circuit Breaker
- 35A
- 3 Pole
- Bolt-On
Quantity
Siemens / ITE ET50-335 - 35A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the legacy E-Frame family, the Siemens ET50-335 is a 3-pole, 35A molded case circuit breaker built for commercial and industrial power distribution. It delivers reliable thermal-magnetic trip functionality for standard long-time and instantaneous (LI) protection. This unit mounts securely into Siemens P1, P2, P3, and classic ITE panelboards without requiring adapters. Rated for 240VAC at 10kAIC, it serves as an exact replacement component. Can be substituted with the B335 model.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | ET50-335-R |
| Series | ET50 |
| Amperage | 35A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, ITE 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 | 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, Non-Interchangeable Trip |
Product FAQs
5 answersWill the ET50-335 fit into older ITE panelboards?
Yes, this legacy E-Frame breaker is designed to mount securely into classic ITE panelboards, as well as modern Siemens P1, P2, and P3 panels, without the need for mounting adapters.
What is the recommended substitute for the ET50-335 circuit breaker?
Facility managers and panel builders can use the Siemens B335 model as a direct substitute for this legacy E-Frame breaker.
What conductor types and sizes are accepted by the ET50-335 lugs?
The breaker includes load lugs that accept 14 AWG through 1/0 AWG conductors. The lugs are rated for both copper (Cu) and aluminum (Al) wiring.
Are the trip settings adjustable on the ET50-335?
No, this breaker is equipped with a fixed thermal-magnetic trip unit. The long-time and instantaneous (LI) protection settings are factory-set and non-interchangeable.
Does the ET50-335 require a separate mounting kit for Siemens P-Series panels?
No, this bolt-on breaker fastens directly to the bus of Siemens P1, P2, and P3 panelboards without requiring an additional mounting kit or adapter.
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