Description
ABL SURSUM GMBH & CO. KG
B20T3
3-POLE MINIATURE CIRCUIT BREAKER
~400
AMB20 07KJ
MADE IN GERMANY
The ABL Sursum B20T3 is a 3-pole miniature circuit breaker marked ~400, serving as overcurrent protection for power feeds within a marine control system. When it trips, it opens all three poles of the circuit it guards and disconnects the connected control equipment from its supply. Its role is protective rather than regulating: it sits between the supply and the load and stays closed until a fault condition calls for it to open. The breaker also bears the marking AMB20 07KJ and was made in Germany. Condition is used.
Key Features
✓ Type B20T3
✓ 3-pole miniature circuit breaker
✓ ~400 marking
✓ Additional marking AMB20 07KJ
✓ Made in Germany
Marine Applications
✓ Protection of power feeds to control panels
✓ Three-pole supply circuits for control cabinets
✓ Switchboard sections feeding automation equipment
✓ Isolation of control system sub-circuits
Technical Support
Prota Marine provides technical support, repair and onboard installation for the 3-pole miniature circuit breaker and the wider marine control system. Our engineers assist with fault diagnosis on tripping or supply problems and support commissioning once the breaker is back in service.



