Key Specifications Parameter Value/Description Manufacturer IDEC Corporation Part Number RU4S-D24 Series RU Series Type General-purpose power relay (Electromechanical) Contact Form 4PDT (4 Form C) / 4刀双掷 Mounting Type Socketable (Plug-in) Termination Style Plug-in (for SY4S socket) Features LED indicator, mechanical indicator, test button, latching lever RoHS Compliant Yes Coil Specifications (24VDC) Parameter Value Nominal Coil Voltage 24 VDC Coil Resistance 605 Ω ±10% Coil Current 44.7 mA Power Consumption Approx. 1.0 W to 1.1 W Must Operate Voltage (Pick-up) 19.2 VDC max. (80% of rated voltage) Must Release Voltage (Drop-out) 2.4 VDC min. (10% of rated voltage) Max. Allowable Voltage 110% of rated voltage Contact Ratings Parameter Value Contact Configuration 4PDT (4 poles, double throw) Contact Material Silver alloy with Gold cladding (Ag/Au or Ag+Au plating) Rated Load (Resistive) 6 A at 250 VAC / 6 A at 30 VDC Max. Switching Voltage 250 VAC / 30 VDC Max. Switching Current 6 A Max. Switching Capacity 2,500 VA / 300 W Contact Resistance 50 mΩ max. (initial) Contact Rating 6A at 250 VAC / 6A at 30 VDC (resistive load) Performance Characteristics Parameter Value Operate Time (Max.) 20 ms Release Time (Max.) 20 ms Mechanical Life (Min.) 10,000,000 operations Electrical Life (Min.) Information not specified Maximum Operating Frequency (Mechanical) 18,000 operations/hour Maximum Operating Frequency (Rated Load) 1,800 operations/hour Insulation & Environmental Specifications Parameter Value Insulation Resistance 100 MΩ min. (at 500 VDC) Dielectric Strength (Coil to Contacts) 2,500 VAC for 1 minute Operating Temperature -55°C to +60°C (or +70°C depending on reference) Ambient Humidity (Operating) 35% to 85% RH (no condensation) Vibration Resistance (Destruction) 10 to 55 Hz, 1.0 mm double amplitude Shock Resistance (Destruction) 1,000 m/s² Shock Resistance (Malfunction) 200 m/s² Physical Specifications Parameter Value Dimensions (W × H × D) 21 × 35 × 27.5 mm Weight Approx. 35 g to 36 g