Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Siemens LGG3B050L Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Siemens
LGG3B050L
Molded Case Circuit Breaker
Brand
Siemens
SKU
LGG3B050L
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens LGG3B050L - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
40A 3 Pole Molded Case Circuit Breaker
70A 3 Pole Molded Case Circuit Breaker
30A 3 Pole Molded Case Circuit Breaker
Description
Delivering high-capacity overcurrent protection, the Siemens LGG3B050L is a 50A, 3-pole MCCB engineered for demanding industrial applications. It provides reliable power distribution for commercial switchboards. This GB/GG frame breaker features unit mounting with DIN rail compatibility and accepts 8-1/0 AWG wire. It is officially replaced by the 3VA5150-6EC31-0AA0. Equipped with a thermal-magnetic LI trip unit, it offers adjustable instantaneous protection and a 65kAIC rating at 480VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | LGG3B050L |
| Series | LGG |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 125VDC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 125VDC, 14kA @ 250VDC |
| Frame Type | LGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Industrial Control Panels, Switchboards, DIN Rail |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, NOM, UL |
| Temp Rating | 40C |
Product FAQs
8 answersCan the LGG3B050L be mounted on a DIN rail?
Yes, this unit-mount breaker is compatible with standard DIN rail installations, as well as traditional screw mounting in industrial control panels and switchboards.
Is there a newer replacement for the LGG3B050L circuit breaker?
Yes, Siemens has officially replaced the LGG3B050L with the 3VA5150-6EC31-0AA0 molded case circuit breaker as part of their transition to the newer 3VA series.
Does the LGG3B050L come with line and load lugs?
Yes, this feed-thru breaker includes factory-installed lugs on both the line and load sides. They accept 8 to 1/0 AWG copper or 8 to 2/0 AWG aluminum wire.
How does the adjustable magnetic trip function on the LGG3B050L work?
While the thermal protection for overloads is fixed at 50 amps, the adjustable magnetic trip allows you to fine-tune the instantaneous short-circuit pickup level. This is useful for coordinating with downstream loads like motors that have high inrush currents.
What enclosures and panels are compatible with the LGG3B050L?
This GB/GG frame breaker is designed for use in Siemens enclosures, industrial control panels, and commercial switchboards requiring high-capacity overcurrent protection.
What safety standards does the LGG3B050L comply with?
This breaker is UL 489 listed for use in low-voltage power distribution systems, ensuring it meets strict safety requirements for molded case circuit breakers.
Is the LGG3B050L rated for direct current (DC) systems?
Yes, in addition to its AC ratings, this breaker is rated for 125VDC and 250VDC applications, providing a 14kA interrupting capacity for DC power systems.
What does the feed-thru connection type mean for installation?
A feed-thru connection means the breaker does not plug onto a panelboard busbar. Instead, it is unit mounted and uses wire lugs on both the line (incoming) and load (outgoing) sides to complete the circuit.
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.