Siemens REF3B060 EF3B060 - 60A 3 Pole Molded Case Circuit Breaker
- 60A
- 3 Pole
- Bolt-On
Siemens
REF3B060
EF3B060 - 60A 3 Pole Molded Case Circuit Breaker
Brand
Siemens
SKU
REF3B060
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Siemens EF3B060 - 60A 3 Pole Molded Case Circuit Breaker
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Description
Part of the legacy EF series, this 60A, 3-pole molded case circuit breaker is engineered for 600VAC commercial and industrial environments. It delivers consistent power distribution and circuit protection. This E-Frame unit utilizes a bolt-on mounting style for Siemens and ITE panelboards. Facility managers can use it as an exact substitute for the discontinued ED63B060 breaker. It features fixed thermal and magnetic trip settings, achieving an interrupting capacity of 14kA at 480VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | REF3B060-R |
| Series | EF |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens / ITE Panelboards, Switchboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens EF3B060 circuit breaker?
The EF3B060 is a bolt-on E-Frame breaker designed to install into Siemens P1, P2, and P3 panelboards, as well as legacy I-T-E panelboards and switchboards.
What is the modern replacement for the discontinued EF3B060 breaker?
The Siemens ED63B060 is the direct modern cross-reference and replacement for the legacy EF3B060. Both are 60A, 3-pole E-Frame breakers.
Are the ITE EF3B060 and Siemens EF3B060 the same breaker?
Yes. Siemens acquired I-T-E, so breakers labeled as ITE EF3B060 or Siemens EF3B060 share the same physical dimensions, electrical ratings, and panelboard compatibility.
Does the EF3B060 breaker come with lugs?
Yes, this breaker includes factory-installed load side lug terminals that accept 10 to 1/0 AWG copper or aluminum wire. As a bolt-on breaker, the line side bolts directly to the panelboard bus.
What does the LI trip function mean on the EF3B060?
The LI designation indicates that the breaker is equipped with a thermal-magnetic trip unit providing Long-Time (thermal) protection against overloads and Instantaneous (magnetic) protection against short circuits. Both settings are fixed on this model.
Can the EF3B060 be used in DC electrical systems?
Yes, this breaker is rated for use in DC applications up to 250VDC, where it provides a 10kA interrupting capacity.
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