Siemens NEG3B015L Molded Case Circuit Breaker
- 15A
- 3 Pole
- Unit Mount
Quantity
Siemens NEG3B015L - 15A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for demanding industrial environments, the Siemens NEG3B015L is a 3-pole, 15A MCCB. It features a fixed thermal-magnetic trip unit delivering reliable long-time and instantaneous protection. Designed as an EG Frame breaker, it fits seamlessly into Siemens VL Series switchboards. While replaced by the 3VA5195-5ED31-0AA0, it remains critical for servicing legacy installations. The breaker offers a 35kAIC rating at 480VAC, supports reverse feed, and utilizes a trip-free mechanism.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NEG3B015L |
| Series | NEG |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600Y/347VAC |
| Frame Type | NEG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens VL Series Enclosures, Panelboards, Switchboards |
| Wire Gauge | 14 AWG - 1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs (TA1EG10) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersCan I install the NEG3B015L in a standard Siemens residential load center?
No, this is an industrial EG frame breaker designed specifically for Siemens VL Series enclosures, panelboards, and switchboards. It will not fit in standard residential load centers that require QP or QT plug-on breakers.
How does a feed-thru circuit breaker like the NEG3B015L mount?
As a unit-mount, feed-thru breaker, it bolts directly to the enclosure backpan or mounting surface rather than plugging into a busbar. Conductors are then terminated directly to the line and load side lugs.
What does the "L" at the end of the NEG3B015L catalog number signify?
The "L" indicates that the breaker is supplied with factory-installed line and load side lugs, meaning it is ready for wire termination out of the box.
Is the Siemens NEG3B015L part of an active or legacy product line?
The NEG frame is part of the legacy Siemens VL Series, which is being phased out and replaced by the newer 3VA series. However, this breaker remains critical for servicing and maintaining existing VL Series equipment.
Can the NEG3B015L be used in reverse-feed applications?
Yes, because it features a fixed, non-interchangeable thermal-magnetic trip unit, this breaker is suitable for reverse-feed installations.
What specific faults does the LI trip unit protect against?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time protection against electrical overloads and Instantaneous protection against short circuits.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.