ALSTOM STO0982E01 Digital Input Module

Technical Specifications

Model：STO0982E01 (Alias:AL132A)

Brand：ALSTOM

Product Type：Digital input module

Applicable System：ALSTOM 3300‑50 protection rack,turbine ETS emergency trip system

Supply Voltage：24V DC backplane power supply

Input Channel：16‑channel dry‑contact / 24VDC level input,per‑channel galvanic isolation

Response Time：＜10ms

Isolation Voltage：1500V AC channel‑to‑backplane isolation

Communication Interface：Rack backplane internal system bus

Status Indicator：Multi‑color LED for power,channel status and module fault

Built‑in Function：Dry‑contact signal acquisition,noise filtering,status data upload for emergency trip logic

Working Temperature：0℃ ~ +60℃

Storage Temperature：‑20℃ ~ +70℃

Protection Class：IP20

Mounting：Plug‑in slot installation inside control rack

Weight：0.48kg

Product Brief:

STO0982E01 is hardware part number for AL132A legacy plug‑in digital input module for ALSTOM 3300‑50 protection rack,mainly applied in steam turbine ETS emergency trip system. It acquires dry‑contact signals from on‑site pressure switches,temperature switches and limit switches. Each input channel supports independent galvanic isolation to suppress field surge and common‑mode interference,avoiding false trip risk. It transmits field contact status to main protection logic via rack backplane bus. Front‑panel LED indicators support quick on‑site channel fault diagnosis without extra testing tools. Plug‑in cabinet mounting structure enables convenient disassembly and replacement. This is EOL discontinued spare part,widely used for thermal power plant turbine protection system maintenance and renovation. Please confirm part number STO0982E01,hardware revision and rack compatibility before purchase. Strict ESD anti‑static protection shall be performed during installation.