8WD4420-5AB
सक्रियSiemens 8WD4420-5AB SIRIUS Signaling Column — Red Continuous Element (70mm, 24V)
Siemens 8WD44 modular signal column.
सामान्य अनुप्रयोग
Siemens stack light for machine status indication. Modular — stack the colors you need. LED technology, 70mm diameter. Visible from 30+ meters in a factory. Integrates with Siemens S7 PLC via direct digital outputs.
स्पेसिफिकेशन
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CE
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Red
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Diameter
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70mm
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Function
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Continuous (steady) light element
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Mounting Type
How the button attaches to the panel. Panel mount is standard — installs through a cutout from the front.
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Pole mount
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Voltage
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24V DC
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इंस्टॉलेशन त्वरित संदर्भ
Panel cutout: 22mm. Insert from the front, secure with mounting nut.
LED module: Check the voltage rating matches your supply (typically 24V DC or 230V AC). Connect to PLC digital output or relay contact for status indication.
Color meaning (IEC 60204-1): Green = normal/running. Red = fault/danger. Yellow = warning/caution. Blue = mandatory action. White = neutral/general.
आयाम
समस्या निवारण
Light is dim or flickering
Check supply voltage matches the LED module rating. Low voltage causes dimming. If voltage is correct, the LED module is failing — replace it. LED modules have finite life (typically 50K-100K hours).
Light doesn't turn on
Verify voltage at the terminals with a multimeter. Check the PLC output or relay driving the light. LED modules are polarity-sensitive on DC circuits — try reversing the leads.
कहाँ से खरीदें
मूल्य सीमा
$52.03 — $240.07
3 वितरकों से
संक्षिप्त स्पेसिफिकेशन
- Certifications
- UL, CE
- Color
- Red
- Diameter
- 70mm
- Function
- Continuous (steady) light element
- Mounting Type
- Pole mount
उपयोगकर्ता क्या कह रहे हैं
“Siemens stack light for machine status indication. Modular — stack the colors you need. LED technology, 70mm diameter. Visible from 30+ meters in a factory. Integrates with Siemens S7 PLC via direct d”
