Automatic Transfer Switch JMRDPS2X A compact, DIN rail mounted automatic transfer switch designed to maintain continuous power to critical loads by switching between phases or power sources when voltage or current abnormalities occur. Built in PC material for durable installation in crowded distribution panels and control cabinets. Why you need it Automatic protection and recovery: Detects undervoltage, overvoltage, and overcurrent on the active phase and automatically switches to a standby phase to restore supply, then returns to the preferred phase L1 when conditions normalize. Long service life: Mechanical life of 1 x 10^6 operations and electrical life of 1 x 10^5 operations for reliable, lowmaintenance performance. Space saving installation: Compact design clips to a standard 35 mm DIN rail, ideal for tight panel layouts in homes, vehicles, and industrial cabinets. Adjustable thresholds: Factory defaults suit common applications, with tunable overvoltage, undervoltage, and overcurrent settings to match specific generator, inverter, or utility requirements. Accurate monitoring: Measurement error within 1% helps ensure precise detection and response. Key features Model: JMRDPS2X Item type: Automatic Transfer Switch Material: PC Power supply terminals: N, L1, L2, L3 Preferred phase: L1 Rated frequency: 50/60 Hz Rated current: 63 A Overcurrent adjustment range: 1 to 100 A Measurement error: 1% Protect restoration delay: 30 s (settable from 1 to 600 s) Default undervoltage actuator: <= 170 V Default overvoltage actuator: >= 270 V Mechanical life: 1 x 10^6 operations Electrical life: 1 x 10^5 operations Installation: 35 mm DIN rail Ambient temperature range: 25 C to 50 C Maximum altitude: up to 2000 m Allowable relative humidity: maximum 50% at 40 C (without condensation) Wire size: 0.5 to 1 mm2 Package contents 1 x Automatic Transfer Switch JMRDPS2X 1 x User Manual Typical applications Home backup generator systems: Automatically transfer critical household circuits to standby power during utility disturbances and to the priority phase when normal supply resumes. Solar inverter and offgrid systems: Manage switching between inverter output and utility or generator inputs to protect inverters and connected loads. Small data closets and industrial control panels: Provide dependable phase transfer and overload protection for sensitive electronics and control equipment. Installation and use Mount on a standard 35 mm DIN rail and wire to terminals N, L1, L2, L3 using 0.5 to 1 mm2 conductors. Configure protection thresholds and restore delay as required. Refer to the included user manual for detailed setup and safety precautions. This model provides a practical, adjustable solution for maintaining power continuity and protecting electrical equipment in residential, commercial, and light industrial environments.