Siemens SND6A120LIG Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Quantity
Siemens SND6A120LIG - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for heavy-duty electrical systems, the Siemens SND6A120LIG serves as a 3-pole, 1200A molded case circuit breaker within the Sentron ND Frame family. This unit mount MCCB installs into Siemens switchboards, Type S5 and SPP power panelboards, and motor control centers. For future-proofing, it transitions to the newer 3VA Series when utilizing the appropriate retrofit kit. The breaker incorporates a Sensitrip electronic trip unit with adjustable LIG settings and provides 50kAIC at 480VAC.Specifications
| Brand | Siemens |
|---|---|
| Series | SND |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | ND |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Switchboards, Type S5 Power Panelboards, Type SPP Power Panelboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | Solid State Trip, Ground Fault Protection, Interchangeable Trip Unit |
Product FAQs
6 answersWhat equipment is the SND6A120LIG compatible with?
This unit-mount breaker is designed for installation in Siemens switchboards, Type S5 power panelboards, Type SPP power panelboards, and motor control centers.
What do the LIG trip functions stand for on this Sensitrip breaker?
The LIG designation means the electronic trip unit provides adjustable long-time, instantaneous, and ground fault protection.
What is the difference between Siemens SND6 and ND6 circuit breakers?
Breakers in the SND6 family feature solid-state electronic trip units for precise adjustability, while standard ND6 breakers use traditional thermal-magnetic trip units. Both share the same physical ND frame footprint.
Does the SND6A120LIG include integrated ground fault protection?
Yes, the ground fault function is built into the electronic trip unit, making it suitable for applications that require equipment ground fault protection on large services or feeders.
Are lugs pre-installed on the SND6A120LIG?
ND frame breakers of this size typically require separate lug kits, such as the 3TA4N8500 or 3TA2N8750, depending on your specific wire size and conductor material. Check your application requirements to ensure you have the correct terminals.
Can the trip settings on the SND6A120LIG be adjusted in the field?
Yes, the solid-state electronic trip unit allows you to adjust the long-time, instantaneous, and ground fault parameters to properly coordinate with your specific electrical system requirements.
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