Siemens 3VA4145-4ED14-0AA0 Molded Case Circuit Breaker
- 45A
- 1 Pole
- Bolt-On
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Siemens 3VA4145-4ED14-0AA0 - 45A 1 Pole Molded Case Circuit Breaker
New
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Description
Siemens 3VA4145-4ED14-0AA0 molded case circuit breaker is rated 45A at 120VAC, 277VAC and 347VAC, with 1 pole and an interrupting rating of 25kAIC at 277V. This 3VA4 series breaker has a 3VA41-Frame, thermal magnetic trip, LI trip function, and fixed thermal and fixed magnetic settings. It features panelboard and switchboard mounting, a load side lug, a 14-3/0 AWG conductor range, single-phase operation, standard protection and UL approval.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA4145-4ED14-0AA0 |
| Series | 3VA4 |
| Amperage | 45A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 347VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 25kA @ 277VAC, 14kA @ 347VAC |
| Frame Type | 3VA41 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards and Switchboards |
| Wire Gauge | 14-3/0 AWG |
| Max Wire | 3/0 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 | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated |
Product FAQs
8 answersWhen should I choose the Siemens 3VA4145-4ED14-0AA0 for a circuit?
Choose this 45A molded case circuit breaker when the circuit design calls for a 45A protective device. Coordinate that selection with the load and conductor protection requirements.
What circuit voltages is this breaker rated for?
The rated voltages are 120VAC, 277VAC and 347VAC. Select the voltage rating that matches the circuit, and evaluate interrupting capacity separately for the installation.
How do I apply the 25kAIC interrupting rating at 277V?
At 277V, the breaker has a 25kAIC interrupting rating. Compare this rating with the available fault current at the installation point; the available fault current must not exceed that interrupting rating.
What protection does the thermal-magnetic LI trip provide?
The thermal-magnetic LI trip provides long-time overload protection and instantaneous short-circuit protection. The thermal element responds to sustained overloads, while the magnetic element responds rapidly to high fault current.
Can I adjust the thermal or magnetic trip settings?
Both the thermal and magnetic trip settings are fixed. Choose this breaker when fixed trip settings suit the circuit's protection requirements rather than an application requiring field-adjustable settings.
What conductor sizes can I terminate at the load-side lug?
The conductor range is 14-3/0 AWG, and the load-side connection is a lug. Keep the conductor size within that range while also selecting it for the circuit's ampacity and installation requirements.
How much physical space should I account for in the layout?
The breaker measures 5.09 in high, 1 in wide and 2.96 in deep. Use these dimensions to plan its physical footprint and depth in the equipment layout.
How does the pole count guide circuit selection?
This is a single-phase, 1-pole breaker. Choose it for a circuit requiring protection of one pole, with the current and voltage ratings matched to the circuit.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 5 reviews.
- SWSHELDON W.Verified BuyerReviewingSiemens 3VA4160-4ED34-0AA0 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/27/26SuperBreakers has you covered
SuperBreakers has you covered when you’re in a pinch and need breakers at the last minute. Their customer service is excellent, and the team consistently goes above and beyond to help. I highly recommend them!
- RSRob S.Verified BuyerReviewingSiemens 3VA4150-6ED34-0AA0 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/8/2650 amp breaker
Very helpful and arrived quickly.
- JBJosh B.Verified BuyerReviewingSiemens 3VA4130-4ED24-0AA0 - 30A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/5/26Breakers
Exactly as described. Quick shipping.
- JLJeff L.Verified BuyerReviewingSiemens 3VA4120-6ED14-0AA0 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/11/26Better than new
Great condition and fast shipping
- KCKen C.Verified BuyerReviewingSiemens 3VA4150-4ED34-0AA0 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/22/25Breaker Order
Good prices and fast shipping.