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Siemens EF3B060 Molded Case Circuit Breaker
- 60A
- 3 Pole
- Bolt-On
Siemens
EF3B060
Molded Case Circuit Breaker
Brand
Siemens
SKU
EF3B060
Quantity
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Siemens EF3B060 - 60A 3 Pole Molded Case Circuit Breaker
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Description
Built to handle demanding electrical distribution needs, this 60-amp molded case circuit breaker offers long-time and instantaneous protection. The three-pole configuration supports systems up to 600VAC. This bolt-on unit integrates into older Siemens and I-T-E panelboards. Facility managers looking for current alternatives can use the ED63B060 as a substitute for this legacy component. Delivering an 18 kAIC rating at 240VAC, the breaker utilizes a fixed thermal-magnetic trip mechanism.Specifications
| Brand | Siemens |
|---|---|
| Part Number | EF3B060-R |
| Series | EF |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens / I-T-E 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 answersWhat panelboards accept the Siemens EF3B060 circuit breaker?
The EF3B060 is a legacy E-frame breaker designed for bolt-on installation in older Siemens and I-T-E panelboards and switchboards.
What frame size is the Siemens EF3B060?
The EF3B060 belongs to the legacy Siemens E-frame family, which was widely used in commercial and industrial power distribution before being superseded by the ED-frame series.
What is the modern replacement for the discontinued EF3B060?
The Siemens ED63B060 serves as the current substitute for this legacy 60A, 3-pole breaker, offering compatible dimensions and mounting for older panels.
How does the EF3B060 connect to the panelboard bus?
This E-frame circuit breaker utilizes a bolt-on mounting style, allowing it to be mechanically fastened directly to the busbars of compatible Siemens and I-T-E panelboards.
Are the thermal and magnetic trip elements adjustable on the EF3B060?
No, this breaker is equipped with a non-interchangeable thermal-magnetic trip unit featuring fixed long-time and instantaneous (LI) protection settings.
Can the 600VAC rated EF3B060 be installed in 240VAC or 480VAC systems?
Yes, it is safe to use this 600VAC breaker on lower voltage AC systems. The interrupting capacity increases at lower voltages, providing 18kA at 240VAC and 14kA at 480VAC.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- VGVictor G.Verified BuyerRated 5 out of 5 stars11/6/25Breakers fit my needs
I wish I would of shopped this I found exact breaker for 400.00 cheaper
- RFRobert F.ReviewingSiemens EF3A100 - 100A 3 Pole Motor Circuit ProtectorI recommend this productRated 5 out of 5 stars7/25/22Fast order and service for a part in good condition
Fast order and service for a part in good condition.