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

Product Summary
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 ...
Basic Properties
Place of Origin: EU
Brand Name: Schneider
Certification: CE RoHS
Model Number: 5123102010
Trading Properties
Minimum Order Quantity: 5
Payment Terms: T/T,Western Union
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
Product Details
Device Type: Switch Actuator
Controlmethod: Electrical And Manual Override
Currentrating: 16A
Installation Method: Flush-mounted
Installation Type: Wall-mounted Or Embedded
Model: MTN6705-0008S

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