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China Schneider 5123102010 STP100-50 Water Temp Sensor NTC 1.8K 50mm for sale
China Schneider 5123102010 STP100-50 Water Temp Sensor NTC 1.8K 50mm for sale
China Schneider 5123102010 STP100-50 Water Temp Sensor NTC 1.8K 50mm for sale
China Schneider 5123102010 STP100-50 Water Temp Sensor NTC 1.8K 50mm for sale

Schneider 5123102010 STP100-50 Water Temp Sensor NTC 1.8K 50mm

Price Negotiable
Price: Negotiable
MOQ: 5
Delivery Time: 7 Days
Brand: Schneider
Product Description
Schneider 5123102010 STP100-50 Water Temp Sensor NTC 1.8K 50mm
Product Overview

The Schneider Electric 5123102010 (Model: STP100-50) is a passive, immersion-type water temperature sensor engineered for hydronic applications in commercial HVAC networks. This sensor incorporates a high-accuracy 1.8KΩ @ 25°C NTC thermistor housed in a 50mm (1.97 in.) stainless-steel probe. Designed to measure fluid temperatures inside chilled water, heating water, or condenser lines, it is typically paired with a brass or stainless-steel thermowell (sold separately) to allow safe probe installation and replacement without draining the piping system.

Technical Specifications
Protocol / Communication None. Passive resistive output.
I/O Points & Signals 1 passive resistive output channel. 2-wire non-polarized screw terminals.
Power Supply / Voltage Passive (no external power required)
Sensor Parameters & Accuracy
  • Sensor Element: NTC 1.8 kΩ @ 25 °C
  • Measuring Range: -40 to 150°C (-40 to 302°F)
  • Probe Physical Specs: 50 mm (1.97 in.) insertion length, 6 mm diameter 316-grade stainless-steel probe
  • Response Time: Thermal response constant τ0.5 ≤ 15 seconds when installed with thermal paste inside a thermowell
Regulatory & Certifications CE, RoHS Compliant, WEEE, REACH-compliant
Enclosure & Material IP65-rated aluminum/polymer mixed junction box with a watertight cable gland
Typical Applications
  • Fan Coil Unit Water Temperature Sensing: Short probe is highly optimized for narrow water lines (DN50 to DN80) supplying secondary air-handling cassettes or fan coils
  • Zone Hydronic Loop Monitoring: Installed on regional branch piping to verify hot/chilled water supply temperatures
  • Coil Pre-Heat Water Temperature: Monitors water temperature close to heating coils to protect systems from cold drafts during winter
Related Product
Schneider 5123104010 (STP100-100) Water Temp Sensor NTC 1.8K 100mm
Product Overview

The Schneider Electric 5123104010 (Model: STP100-100) is a passive immersion water temperature sensor featuring a 100mm (3.94 in.) insertion probe. Featuring a high-precision 1.8KΩ @ 25°C NTC thermistor element, this robust 316-grade stainless-steel probe is built for large-diameter primary water loops, central plate heat exchangers, and commercial chillers. Built to withstand high temperature shocks, vibration, and water hammer, the STP100-100 is typically paired with a 100mm thermowell and co-procured alongside the STP100-50 for precise delta-T calculations in energy auditing systems.

Technical Specifications
Protocol / Communication None. Passive resistive output.
I/O Points & Signals 1 passive resistive output channel. 2-wire non-polarized terminal block connection.
Power Supply / Voltage Passive (no external power required)
Sensor Parameters & Accuracy
  • Sensor Element: NTC 1.8 kΩ @ 25 °C
  • Measuring Range: -40 to 150°C
  • Probe Physical Specs: 100 mm (3.94 in.) insertion length, 6 mm diameter 316 stainless-steel probe
  • Measurement Accuracy: ±0.2°C (±0.36°F) at typical room temperatures (0 to 70°C)
Regulatory & Certifications RoHS Compliant, CE, REACH, WEEE
Enclosure & Material IP65 weatherproof junction box with integrated terminal block and watertight rubber cable gland
Typical Applications
  • Chiller Plant Delta-T Measurement: Installed on primary chilled water supply and return headers (DN100 and above) to compute BTU cooling load and system efficiency
  • Central Heating Board Heat Exchanger (HEX): Positioned on primary or secondary sides of central heat exchangers to control modulating hot-water valves
  • Cooling Tower Piping Monitoring: Installed on main outdoor condenser water pipes to modulate cooling tower fan speeds based on discharge temperatures
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Company Maituo Intelligent Technology Co.，Ltd
Location 1st Floor, Building 4, Xindao Street, Yazhou District, Sanya City, Hainan Province, China
Contact Person Nora

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