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ABB AC800M 3BSE053242R1 PM891K02 Redundant Processor Unit 450MHZ and 256MB.Two modules redundant use protection system quality arrangement operation

450MHZ and 256MB.
Package including:
- 2 pcs PM891K01 Processor Unit
- TK850V007 CEX-bus Extension Cable
- TK855 RCU Data Link Cable
- TK856 RCU Control Link Cable
- No license included
（The BC810K02 is not included in the PM891K02 Redundant Processor Unit Kit. In order to make hot replacement of PM891 Processor Unit possible, the BC810K02 is required to be ordered separately.）

AC 800M is a family of rail-mounted modules, consisting of CPUs, communication modules, power supply modules and various accessories. There are several CPU modules to choose from, ranging from medium processor power and low cost to high processor power and support for full redundancy.