The EPH TA230 is a 4-wire thermal actuator designed for reliable valve control in central heating and HVAC installations. Configured as normally closed (NC), this unit requires power to open, providing a fail-safe mechanism for system management. It is engineered to operate efficiently in ambient temperatures ranging from 0°C to 50°C and features an integrated auxiliary connection to support complex system configurations. With a spring pressure of 125N, the device ensures consistent valve actuation across a range of operational environments.