Specification |
Description |
Part Number |
NSX400S |
Manufacturer |
Telemecanique |
Product Name |
ComPacT NSX400S DC Circuit Breaker |
Rated Current |
400 A at 40 °C |
Rated Operational Voltage |
750 V DC |
Rated Insulation Voltage |
750 V DC conforming to IEC 60947-2 |
Rated Impulse Withstand Voltage |
8 kV conforming to IEC 60947-2 |
Number of Poles |
3P or 4P |
Breaking Capacity |
100 kA at 750 V DC |
Trip Unit Technology |
Thermal-magnetic |
Trip Unit Protection Functions |
LI (Overload and Short-circuit Protection) |
Mounting Mode |
Fixed |
Mounting Support |
Backplate |
Control Type |
Toggle |
Dimensions (W x H x D) |
140 mm x 255 mm x 110 mm |
Net Weight |
8.0 kg |
Standards |
EN/IEC 60947 |
Product Certifications |
CCC, EAC, Marine |
IP Degree of Protection |
IP40 conforming to IEC 60529 |
IK Degree of Protection |
IK07 conforming to IEC 62262 |
Ambient Air Temperature for Operation |
-25…70 °C |
Ambient Air Temperature for Storage |
-50…85 °C |
Relative Humidity |
0…95% |
Operating Altitude |
0...2000 m without derating, 2000 m...5000 m with derating |
Pollution Degree |
3 conforming to IEC 60664-1 |
Sustainable Offer Status |
Green Premium product |
Compliance |
EU RoHS Directive Compliant, Mercury free, Halogen free plastic parts product |
The Telemecanique ComPacT NSX400S DC Circuit Breaker is a robust and reliable solution for electrical distribution applications. Designed to handle a rated current of 400 A at 40 °C and a rated operational voltage of 750 V DC, this circuit breaker ensures optimal performance and safety. It features a thermal-magnetic trip unit for effective overload and short-circuit protection. With a fixed mounting mode and backplate support, it is easy to install in various configurations. The NSX400S is compliant with international standards, including EN/IEC 60947, and offers a high degree of protection with IP40 and IK07 ratings. Its sustainable design aligns with Green Premium product standards, making it an environmentally friendly choice for modern electrical systems.
The Telemecanique NSX400S is a robust and reliable circuit breaker designed for efficient electrical distribution and protection in industrial applications. This compact device is part of the ComPacT NSX DC range, offering a high breaking capacity of 100 kA at 750 V DC, making it suitable for demanding environments. With a rated current of 400 A at 40°C, the NSX400S ensures optimal performance and safety. It features a thermal-magnetic trip unit, providing both overload and short-circuit protection. The circuit breaker is designed for fixed mounting on a backplate, with front connections for both upside and downside configurations. Its durable construction supports mechanical durability of up to 5000 cycles and electrical durability of 1000 cycles at full load. Conforming to international standards such as IEC 60947-2, the NSX400S is a versatile choice for DC network applications, ensuring reliable operation and protection.