Description
The Woodward 8237-1247 is a high-integrity overspeed protection module from the ProTech-GII series, designed to monitor turbine rotor speed and acceleration. It provides rapid shutdown capability for steam, gas, and hydro turbines in critical safety applications.
Specifications
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Model: 8237-1247
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Series: ProTech-GII
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Mounting Type: Bulkhead (cabinet door or wall)
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Dimensions: 330 × 486 × 153 mm
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Weight: Approx. 12.1 kg (26 lbs 12 oz)
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Input Voltage: 100–150 VDC @ 30W per module; 24VDC low-voltage input
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Current Limit: 500 mA
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Trip Response Time: ≤12 ms
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Sensor Inputs: 3 independent MPUs (active/passive)
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Communication: Modbus RTU, RS-232, RS-485, 4–20 mA speed output
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Environmental Rating: IP56 enclosure; resistant to H₂S, SO₂, and CO₂
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Operating Temperature: –20°C to +60°C
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Storage Temperature: –20°C to +65°C
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Compliance: IEC 61508 SIL-3, IEC 721-3-3
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