ABB Smissline-S Circuit Breaker - S400M - G010381
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Product Information
Full details
The ABB Smissline-S S400M (G010381) is a specialized miniature circuit breaker designed for professionals and facility managers who require reliable electrical protection within the SMISSLINE TP pluggable system. It offers robust dual-tripping mechanisms to guard against both thermal overloads and short circuits, making it ideal for industrial and commercial distribution. The primary caveat is that this device is strictly intended for use with the dedicated SMISSLINE TP modular busbar system, limiting its compatibility with standard DIN-rail installations.
All features
| Series | S400M |
|---|---|
| Model Part Number | G010381 |
| Brand | ABB |
Extended Product Information
FAQs
Can I use this on a standard DIN-rail?
No, the S400M is a pluggable device designed exclusively for the ABB SMISSLINE TP busbar system.
What does the Type B trip curve mean?
A Type B curve trips at 3 to 5 times the rated current, making it ideal for standard resistive or low-inductive loads.
Is this breaker suitable for DC applications?
While the specs indicate AC/DC capability, always verify specific voltage and application requirements against the product datasheet for your intended DC load.
What is the breaking capacity of this model?
The S400M (G010381) has a breaking capacity of 10,000 A (10 kA).
How many poles does this unit have?
This specific unit is a 4-pole miniature circuit breaker.
What is the rated current for this circuit breaker?
This model has a rated current of 16 A.
Troubleshooting
Breaker will not stay in the 'ON' position
Check for an active overload or short circuit downstream. If the fault is cleared and the lever still won't stay set, the internal mechanism may be damaged.
Breaker does not seat firmly on the busbar
Verify that the SMISSLINE TP busbar is not damaged and that there is no debris preventing a full connection. Realign and apply firm, steady pressure.
Nuisance tripping during normal operation
Verify that the total load current does not exceed the 16A rating and check for loose connections in the terminal block.
Pros and Cons
Pros
- Pluggable design reduces downtime during maintenance
- High 10 kA breaking capacity for enhanced safety
- Reliable dual-protection mechanisms
- Compact and durable build quality
- International IEC/EN standard compliance
Cons
- Compatible only with the SMISSLINE TP system
- Not intended for general DIN-rail mounting
- Higher initial cost compared to standard fixed MCBs
Setup, Compatibility & Care
To install, ensure your power distribution system utilizes the SMISSLINE TP busbar assembly. Align the breaker with the connection points on the busbar and press firmly until it locks into place.
Compatibility: This model (G010381) is specifically part of the S400M range and requires the proprietary TP plug-in interface. It is not backwards compatible with standard, non-Smissline DIN-rail systems.
Care & Maintenance: Periodically inspect the connection points on the busbar for signs of debris or oxidation. Ensure that the operating handle remains free-moving and is not obstructed by wiring. If a breaker has tripped multiple times due to a significant short circuit, it is recommended to test the device or replace it to ensure continued reliability.