2B10335G05 is an Emerson Westinghouse original rack-mounted power supply module tailored for Ovation DCS distributed control system, belonging to 2B series dedicated cabinet power accessories widely used in power and chemical industry control cabinets. This unit is responsible for converting alternating current into stable direct current to supply power for rack controller, I/O boards and auxiliary relay components inside boiler, turbine and auxiliary control cabinets of thermal power, nuclear power and petrochemical facilities.

The module uses all-metal enclosed housing with built-in heat dissipation structure to guarantee reliable heat exchange during long-term loaded operation. EMI filtering and multi-level surge suppression circuits are arranged inside the unit to restrain strong electromagnetic interference generated by high-power electrical parts inside the cabinet. Several LED indicators are mounted on the front panel to intuitively reflect input power status, normal output state and equipment fault alarm information. The product satisfies UL, CE and IEC industrial safety and EMC standards and can run continuously for 24 hours under harsh industrial ambient conditions.

The module supports wide-range alternating current input from AC85V up to AC264V to adapt different industrial power supply standards worldwide. Its standard regulated output is DC24V with rated output current designed to satisfy the normal power demand of multiple adjacent slot control modules.

Integrated full-range protective functions cover overvoltage protection, overcurrent protection, short-circuit automatic shutdown and overheat thermal cutoff protection. When overload, short circuit or abnormal temperature emerges on the load side, the module will cut off output automatically so as to avoid damage to subsequent connected DCS hardware.

Normal operating temperature inside control cabinet falls between 0 degree Celsius and 60 degree Celsius, and storage temperature ranges from minus 40 degree Celsius to positive 85 degree Celsius. Operating relative humidity is limited within 5% to 95% without condensation inside the power module. Its overall dimension follows Ovation rack unified installation standard, enabling direct plug-in replacement for obsolete same-series power supplies on original equipment slots.

This power unit is primarily installed in Ovation DCS cabinets of large thermal power plants, nuclear power auxiliary control cabinets, steam turbine protection cabinets and petrochemical emergency shutdown control cabinets, functioning as the stable power source for core control cards and field signal acquisition modules.