ABB are proud to present our new S800B – a high performance MCB with 16Ka breaking capacity.
With its breaking capacity it is designed to meet the current needs of sub-distributions.
Compared to the familiar S800 range the S800B has only one arching chamber. It is designed to meet the current needs of sub-distribution cabinets and IEC 60947-2 requirements up to 16Ka and 125A at 230/400 V AC.
In addition to the new S800B, the range of accessories was extended by the following devices:
S800-RSU Remote-controllable switchgear unit
The S800-RSU can be mounted onto all multiple S800 units and enables switching from a distance. It is a field mountable and wireable electric motor driven remote controllable switch unit for front mounting on multipole High Performance MCB and is compliant to IEC 60947.
The RSU is designed to meet industrial requirements for applications where system availability is the key to success, e.g.
• UPS & Data Centers
• Traction
• Telecommunication
• Alternative Energies
S800-SCL-SR Self-resetting short-circuit current limiter
The S800-SCL-SR is a current-limiting module that limits the short-circuit current until the downstream protective device triggers. Continual current availability makes this switch unique as group protection can thus be realized. This means a whole group of motor control breakers can be operated or protected using one S800-SCL-SR. In the case of a fault, all downstream protective devices would not stop as would be the case with the usual short-circuit current limiters. Only the circuit breaker located next to the fault would trip and all remaining devices continue being operational.