ABB Electrical 1SBL141001R8810 Auxiliary Block Contactor

Model Type: A9-30-10 230/240V 50Hz/240-260V 60Hz Electrical 1SBL141001R8810 Auxiliary Block Contactor

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions (centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible

Application Fields

Industrial automation production line: as the core control unit in the automation production line of automobile manufacturing, machining,

electronic equipment production and other industries, it realises the coordinated control of various equipments 

on the production line and the management of the automated production process, and improves the production efficiency,

product quality and the reliability of the production process.

Process control system: Widely used in chemical, petroleum, natural gas, food and beverage, pharmaceutical and

other process industries, for the production process of temperature, pressure, flow, level and other key parameters for

accurate monitoring and control, to ensure the safe and stable operation of the production process and product quality consistency.