Siemens SHLD69400NT Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Quantity
Siemens SHLD69400NT - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for reliable power distribution, the Siemens SHLD69400NT is a 400A, 3-pole molded case circuit breaker from the Sentron Series. It features a Sensitrip III electronic trip unit with adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection functions. Delivering 65kAIC at 480VAC, this bolt-on LD frame breaker is suitable for commercial switchboards. For future upgrades, it is replaced by the 3VA6340-6HN31-0AA0 using a retrofit kit.Specifications
| Brand | Siemens |
|---|---|
| Part Number | SHLD69400NT |
| Series | SHLD6 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 80-400A |
|---|
| Frame Type | SHLD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
6 answersWhat equipment is the SHLD69400NT circuit breaker designed to fit?
This 400A LD-frame breaker is designed for use in Siemens Sentron panelboards, switchboards, and motor control centers.
What does the NT suffix mean in the SHLD69400NT catalog number?
The NT suffix indicates that the breaker is equipped with a Sensitrip III solid-state electronic trip unit featuring LSI (Long-Time, Short-Time, and Instantaneous) trip functions.
What adjustments can be made on the LSI electronic trip unit?
The LSI trip unit allows you to adjust the long-time pickup and delay, short-time pickup and delay, and instantaneous pickup settings. This provides precise control for selective coordination in your electrical system.
What does the H in the SHLD frame designation indicate?
The H indicates that this is the high-interrupting capacity version of the standard SLD frame. It provides elevated fault protection, rated at 65kAIC at 480V and 35kAIC at 600V.
What wire sizes are accepted by the standard lugs on this breaker?
The standard lugs accept aluminum or copper wire ranging from 3/0 AWG to 500 kcmil.
Is the SHLD69400NT part of a current or legacy breaker series?
The SHLD69400NT is part of the legacy Siemens Sentron LD frame series. It is frequently sourced for direct replacements in existing switchboards and panelboards to avoid costly system upgrades.
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