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Water Heating Contact Thermostat 50-80C Manual Reset

SKU ST551
In stock: 100+
  • Description
  • Key Features
  • Technical Specifications

Designed for mains pressure domestic hot water systems, this manual reset thermostat operates at 30A with a temperature range of 50° to 80°C. It features safety cut-out at 88°C double-pole single-throw (DPST) configuration and a single-pole single-throw (SPST) for reliable temperature control and protection.

ST Thermostat Wiring Diagram

  • Temperature control range: 50 °C to 80 °C (manual reset).
  • Safety cut-out: dual-pole safety shut-off at 88 °C.
  • 30 A switching rating for domestic hot water systems.
  • Single-pole SPST operation with dual-pole cut-out.
  • Compatible models include ST12-80, ST1204133, ST1205134 and ST1202134.
Specification Details
Temperature Range 50 °C – 80 °C (manual reset)
Safety Cut-Out 88 °C (DPST)
Contact Configuration SPST (activation), DPST (safety cut-out)
Switching Rating 30 A
System Compatibility Mains-pressure domestic hot water systems
Model Equivalents EWT1L2-551, ST12-80 (as specified)