Siemens / ITE ET-6135 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Siemens / ITE ET-6135 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the legacy ITE line, the Siemens ET-6135 is a 3-pole, 400A molded case circuit breaker built for demanding commercial and industrial environments. It provides robust overcurrent protection for 600VAC and 250VDC systems. This unit mount MCCB installs into older ITE and Siemens enclosures. When upgrading, it is replaced by the JXD63B400, which requires a specific retrofit kit for proper panel fitment. Rated at 30kAIC at 480V, it features a fixed thermal and adjustable magnetic trip.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | ET-6135-R |
| Series | ET |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | ITE / Siemens Panelboards |
| Wire Gauge | 250-500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| 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 | Lugs Not Included |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Standard Interrupting Capacity |
Product FAQs
4 answersWhat is the modern replacement for the legacy ET-6135 circuit breaker?
When upgrading, the ET-6135 is typically replaced by the modern Siemens JXD63B400. Note that installing the newer JXD63B400 into older ITE or Siemens enclosures requires a specific retrofit kit to ensure proper panel fitment.
What frame type is the ET-6135?
The ET-6135 is built on the legacy ITE KL frame style, sometimes referred to as the ET-KL frame. It is designed as an exact replacement fit for older systems utilizing this specific frame footprint.
How do the trip adjustments work on this breaker?
The ET-6135 utilizes a thermal-magnetic trip unit with a fixed thermal setting for long-time overload protection. The magnetic trip is adjustable, allowing electricians to precisely calibrate the instantaneous short-circuit response for specific loads.
Will this breaker fit in a new Siemens panelboard?
The ET-6135 is a legacy unit mount breaker intended as a direct replacement component for older ITE and Siemens panelboards. It is generally not compatible with modern, newly constructed panelboards without specialized retrofitting.
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