SIEMENS Point-type Heat Detector (P), FDT181
LEHIY item code: LH-2542
Communication Protocol: FD18-BUS
Category: Temperature Detector
Load Factor: 1
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This page helps you check SIEMENS Point-type Heat Detector (P), FDT181 before you ask for a quote.
Confirm the brand, model number, part number, and quantity. Share a clear nameplate photo when the old item has close variants.
LEHIY can check stock, lead time, packing, shipping documents, and safe replacement options for maintenance orders.
Product Introduction Overview
FDT181 Point-Type Heat Detector
Automatic software addressing, no encoder or DIP switch required
High-quality heat sensor ensures accurate temperature sensing performance
Can be set to differential temperature or constant temperature operating mode
PCB circuit board moisture-proof design
360° visible LED for easy installation
Product Features
The FDT181 point-type heat detector is an intelligent heat detector suitable for fire detection in interior spaces of buildings, especially in places where smoke, dust, or emitted gases cannot be detected by other types of detectors.
The FDT181 point-type heat-sensing fire detector is an intelligent heat-sensing detector suitable for fire detection in the interior spaces of buildings, especially in places where smoke, dust, or emitted gases are generated during operation and other types of detectors cannot be used.
Meets national standard GB4716-2005 "Point-type Heat-sensing Fire Detector"
Built-in 16-bit CPU; signal reception is processed by intelligent algorithms
A2S and A2R operating modes
The detector's detection mode can be selected through parameter settings, allowing for adjustments based on the monitored environment
Fully automatic address setting; no encoder setting or DIP switch required
360° omnidirectional visibility of the alarm light
Strong resistance to environmental interference, including humidity, electromagnetic interference, corrosive gases, vibration, etc.
Communicates with the controller via FD18-BUS circuit; polarity-free connection
Each detector has a unique identification code (similar to an ID card, serving as component identification). The controller uses this code to confirm the detector type and assign locations. Used for monitoring rooms where the temperature rises rapidly during a fire, or in situations where smoke detectors are inconvenient to use. Made with environmentally friendly and safe materials, compliant with RoHS standards. **Technical Specifications** **Operating Voltage:** 12~32VDC **Operating Current (Static):** 0.26mA **Action Current:** 1.20mA **Operating Temperature:** -10~50°C **Storage Temperature:** -20~70°C **Relative Humidity:** ≤96% Communication Protocol: FD18-BUS
Load Factor: 1
Color: White
Protection Rating EN60529/IEC529: IP44
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Siemens |
| Category | Temperature Detector |
Plain language sourcing guide for SIEMENS Point-type Heat Detector (P), FDT181
Start with the full model name. Check the brand name. Check the part number. Check the code on the old unit. These small checks help you avoid a wrong order.
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Use simple order notes. Write the model in one line. Write the quantity in one line. Write the delivery country in one line. This helps our team reply faster.
Check the old part before removal. Look at the label. Look at the connector. Look at the mounting size. Look at the voltage or pressure rating if it is shown.
Do not rely on a short nickname for a part. Many industrial items have close versions. A small suffix can change the plug, output, range, or software setting.
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For urgent service, keep the message simple. One model, one quantity, one photo, and one delivery target are enough for a fast first check.
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| Brand Name: | Siemens | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
What are your strengths?
Ans. LEHIY specializes in industrial automation and control components, offering fast sourcing, stable quality, and competitive prices for global customers.
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Ans. Most items ship within 3-7 days. Customized or rare models may take 10-30 working days.
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Ans. Our main products include PLCs, sensors, valves, solenoid valves, actuators, power modules, transmitters, and complete industrial automation solutions.
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Replacement support
SIEMENS Point-type Heat Detector (P), FDT181
Send the brand, model, part number, quantity, nameplate photos, and application requirements. LEHIY will check availability, suitable alternatives, packing details, and delivery options before quoting.
For discontinued, temporarily unavailable, or configuration-sensitive items, our team can compare the requested model with close variants or compatible replacements for maintenance and spare parts planning.
Use this page as a practical sourcing note for engineers, buyers, and maintenance teams comparing automation components. Check the model name, brand, LEHIY code, application, and replacement requirements before sending an inquiry.
Short, clear information helps our team confirm availability faster and reduce back-and-forth communication during urgent maintenance projects.
- Confirm the complete model number and any suffix printed on the nameplate.
- Share quantity, destination country, preferred shipping method, and target delivery date.
- Include photos, drawings, old purchase records, or datasheets when compatible alternatives are acceptable.
- Ask for stock checking, replacement comparison, packing details, and export documentation before ordering.
Useful details for a faster quote
- Complete model and part number
- Required quantity and target delivery date
- Nameplate photos, drawings, or old purchase records
- Voltage, signal range, dimensions, or accessory needs
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SIEMENS Point-type Heat Detector (P), FDT181 verification notes
Please send the full model number, quantity, target delivery date, and nameplate photos. These details help us check the requested product or a close replacement.
LEHIY reviews product name, part number, series, label information, and application requirements before shipment.
If the original model is discontinued or supplied with different accessories, we can explain practical differences before quoting.
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