Specifications Main Range of produc Harmony Solid State Relays Product or component type Solid state relay up to 30 A Device short name SSM3 Number of channels 3 Number of phases 3 phases Output switching mode Random voltage switching Complementary mounting support Symmetrical DIN rail [In] rated current 25 A Output voltage 48...600 V AC [Uc] control circuit voltage 4...32 V DC Tightening torque 0.6...0.7 N.m for input 1.36...1.7 N.m for output Connections - terminals Screw terminals: 0.2...1.3 mm², (AWG 24...AWG 16) for input Screw terminals: 1.3...5.3 mm², (AWG 16...AWG 10) for output maximum capacitance 8 pF for input/output Insulation resistance 1000 MOhm Local signalling LED (green) for input status Switching voltage 4 V DC turn-on 1 V DC turn-off input current 22…28 mA solid state output type Random voltage switching Load current 0.1…25 A transient overvoltage 1100 V Surge current 286 A for 20 ms at 50 Hz 300 A for 16.6 ms at 60 Hz Maximum voltage drop <1.35 V on-state Motor power hp 1 hp 40 °C 240 V AC 2 hp 40 °C 380 V AC 3 hp 40 °C 480 V AC Maximum I²t for fusing 410 A².s for 10 ms at 50 Hz 374 A².s for 8.3 ms at 60 Hz Maximum leakage current 0.25 mA off-state DV/dt 500 V/µs off-state at maximum voltage Response time 0.5 cycle (turn-off) 0.02 ms (turn-on) power factor 0.5 (with maximum load) Overvoltage category III Net weight 0.74 kg Environment Dielectric strength 4 kV AC for input/output 4 kV AC for input or output to case Pollution degree 2 Standards UL 508 IEC 60950-1 CSA C22.2 No 14 product certifications UL EAC CSA Marking CSA EAC CE UL IP degree of protection IP20 ambient air temperature for operation -20…80 °C Ambient air temperature for storage -40…100 °C