Foxboro CM902WM FBM System Power Supply Module

Technical Specifications

Model:CM902WM

Brand:Foxboro

System compatibility:I/A Series DCS system,power source for FBM fieldbus I/O subsystem

Function:AC‑DC power conversion,provides stable 27.5VDC working power for FBM baseplate and connected fieldbus modules

Installation:Standard DIN‑rail mounting inside instrument cabinet

AC input range:100‑240VAC universal input,47‑63Hz

DC output:27.5VDC,2.4A continuous rated output

Efficiency:High‑efficiency isolated power conversion

Protection feature:Integrated over‑voltage,over‑current,short‑circuit and thermal shutdown protection

Diagnostic:On‑board multi‑color LED indicators for power normal,fault alarm status

Isolation:Reinforced isolation between AC input and DC output side

Environmental standard:Compliant with ISA‑S71.04 Class G3 industrial atmospheric condition

Housing:Compact flame‑retardant plastic housing,heat‑dissipation slot design

Protection class:IP20

Horizontal operating temperature:0℃ ~ +60℃

Vertical operating temperature:‑20℃ ~ +55℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.61kg

Dimensions:124mm ×84mm ×41mm

Certification:CE,UL

MTBF:>89000 hours

Built‑in function

CM902WM FBM system power supply module converts universal AC mains input into stable 27.5VDC power to supply FBM baseplate and fieldbus I/O modules. Reinforced isolation design suppresses grid‑side interference and improves system safety. Multi‑level protection mechanism triggers shutdown under short‑circuit,over‑current or over‑temperature conditions to protect downstream FBM hardware. LED status indicator allows technicians to quickly judge power running state,widely applied for remote‑I/O cabinet power supply unit in petrochemical,chemical and power‑plant I/A‑Series DCS projects.

Product Brief

CM902WM belongs to Foxboro I/A Series legacy DCS power‑supply spare‑part family,obsolete original FBM subsystem power unit. Must match corresponding FBM baseplate assembly. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.今天 16:19