ObserveThe controller cannot rely on the documented hold-up function during a power-loss event.

CheckVerify RAM charger assembly condition, power cable and the controller backup cables before returning the system to service.

RiskA power interruption may require a longer controller recovery and extend process downtime.

ObserveThe assembly cannot be routed according to the cabinet design.

CheckApply the official 30-inch adjacent or 84-inch non-adjacent cabling guidance and respect the 55-inch power-cable limit.

RiskImprovised routing can delay commissioning and make future maintenance harder.

ObserveA replacement is being planned for a CC-PCNT05/C300v5 controller.

CheckStop and verify the controller generation; Honeywell requires CC-SCMB05 for CC-PCNT05.

RiskInstalling the older assembly in a C300v5 plan can prolong the outage because it is not compatible.

Model	CC-SCMB02
Product type	C300 Memory Backup Assembly
Published installation scope	For two or more C300 controllers
Controllers per RAM charger assembly	Up to two
Published backup duration	Up to 50 hours

RAM charger assembly	51199932-100
RAM charger mounting assembly	51202340-100; 3 in / 76 mm
30-inch controller cable	51202330-100; 0.7 m
84-inch controller cable	51202330-200; 2 m
55-inch power cable	51202331-100; 1.4 m

30-inch cable use	When mounted adjacent to the associated C300 IOTA on the same CCA
84-inch cable use	When not adjacent to the associated C300 IOTA on the same CCA
Controller connections	One or two C300 controllers per RAM charger assembly
Power-cable constraint	The 55-inch cable limits the documented cabinet mounting location

Honeywell CC-SCMB02 51199932-200 C300 Memory Backup Assembly

Honeywell C300 memory backup assembly