8WD4420-5AB
Hoạt động8WD44 Signal Column Green/Red/Yellow
Siemens 8WD44 modular signal column.
Ứng Dụng Phổ Biến
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.
Thông số kỹ thuật
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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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Green/Red/Yellow (modular)
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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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Hướng Dẫn Cài Đặt Nhanh
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.
Kích thước
Khắc phục sự cố
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.
Nơi Mua Hàng
Dải giá
$52.03 — $240.07
từ 3 nhà phân phối
Thông số kỹ thuật nhanh
- Certifications
- UL, CE
- Color
- Green/Red/Yellow (modular)
- Mounting Type
- Pole mount
- Voltage
- 24V DC
Những Đánh Giá Từ Khách Hàng
“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”
