Siemens / ITE ETS2639 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Siemens / ITE ETS2639 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed to protect commercial systems, the Siemens ETS2639 is a 100A, 3-pole molded case circuit breaker. It features fixed thermal and magnetic trip elements for reliable overcurrent protection on 480VAC circuits. This E-Frame breaker is engineered to mount into legacy Siemens P2 and P3 panelboards. It provides a seamless replacement solution for aging infrastructure, and can be cross-referenced with the modern ED63B100. Rated at 25kAIC, the unit comes equipped with load side lugs.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | ETS2639-R |
| Series | ETS |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 480VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P2, P3 Panelboards, Switchboards |
| Wire Gauge | 4-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 4 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 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Molded Case Circuit Breaker |
Product FAQs
6 answersWhich panelboards are compatible with the ETS2639 circuit breaker?
This E-Frame breaker is engineered for unit mounting in legacy Siemens and ITE P2 and P3 panelboards, as well as compatible switchboards.
What is a modern replacement for the legacy ETS2639?
The ETS2639 can be cross-referenced with the modern Siemens ED63B100 molded case circuit breaker, which shares the same E-Frame footprint and provides equivalent protection.
What wire sizes are accepted by the terminals on this breaker?
The lugs accommodate 4 AWG to 1/0 AWG copper or aluminum (Cu/Al) conductors.
Are the thermal and magnetic trip settings adjustable on the ETS2639?
No, this breaker features a fixed thermal and fixed magnetic trip unit. Both the long-time and instantaneous (LI) trip functions are factory set and cannot be field adjusted.
How is the ETS2639 installed into the panel?
It is a unit-mount circuit breaker, meaning it bolts directly to the panelboard or switchboard chassis rather than plugging in.
Does this breaker provide ground fault or arc fault protection?
No, the ETS2639 is a standard thermal-magnetic breaker providing only overload and short-circuit protection. It does not include GFCI or AFCI capabilities.
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