Special-purpose PCB Relay G4A Miniature Single-pole Relay with 80-A Surge Current and 20-A Switching Current Ideal for motor switching. Miniature, relay with high switching power and long endurance. Creepage distance conforms to UL and CSA standards. Highly noise-resistive insulation materials employed. Standard model available with flux protection construction. VDE RC X Ordering Information Classification Contact form Model 250 tab terminals/PCB coil terminals SPST-NO G4A-1A-E PCB terminals/PCB coil terminals G4A-1A-PE Note: When ordering, add the rated coil voltage to the model number. Example: G4A-1A-E 12 VDC Rated coil voltage Model Number Legend G4A- - VDC 1 2 3 4 5 1. Number of Poles 4. Special Function 1: 1 pole E: For long endurance 2. Contact Form 5. Rated Coil Voltage A: SPST-NO 5, 12, 24 VDC 3. Terminals None: 250 tab/PCB coil terminals P: Straight PCB/PCB coil terminals Specifications Coil Ratings Rated voltage 5 VDC 12 VDC 24 VDC Rated current 180 mA 75 mA 37.5 mA Coil resistance 27.8 W 160 W 640 W Coil inductance Armature OFF --- 0.8 H 3.5 H (ref. value) Armature ON --- 1.1 H 4.8 H Must operate voltage 70% of rated voltage max. Must release voltage 10% of rated voltage min. Max. permissible voltage 160% of rated voltage at (23 C) Power consumption Approx. 0.9 W Note: 1. The rated current and coil resistance are measured at a coil temperature of 23C with a tolerance of 10%. 2. Operating characteristics are measured at a coil temperature of 23C. 3. Max. permissible voltage refers to the maximum value in a varying range of operating power voltage, not a continuous voltage. 180G4A G4A Contact Ratings Rated load 20 A at 250 VAC Rated carry current 20 A Max. switching voltage 250 VAC Max. switching current 20 A Max. switching power 5,000 VA Failure rate (reference value) 100 mA at 5 VDC -6 Note: P level: = 0.1 x 10 /operation (with an operating frequency of 120 operations/min) 60 Endurance With Motor Load Load conditions Switching frequency Electrical endurance 250 VAC: ON: 1.5 s 200,000 operations Inrush current: 80 A, 0.3 s (cosf= 0.7) OFF:1.5 s Break current: 20 A (cosf = 0.9) With Overload Load conditions Switching frequency Electrical endurance 250 VAC: ON: 1.5 s 1,500 operations Inrush current: 80 A (cosf= 0.7) OFF:99 s Break current: 80 A (cosf = 0.7) With Inverter Load Load conditions Switching frequency Electrical endurance 100 VAC ON: 3 s 30,000 operations Inrush current: 200 A (0-P) OFF:5 s Break current: 20 A Characteristics Contact resistance 100 m W max. Operate time 20 ms max. Release time 10 ms max. Max. operating frequency Mechanical: 18,000 operations/hr Insulation resistance 1,000 MW min. (at 500 VDC) Dielectric strength 4,500 VAC 50/60 Hz for 1 min between coil and contacts 1,000 VAC 50/60 Hz for 1 min between contacts of same polarity Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude) Malfunction: 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude) 2 Shock resistance Destruction: 1,000 m/s 2 Malfunction: 200 m/s Endurance Mechanical: 2,000,000 operations min. (at 18,000 operations/hr) Motor load: 100,000 operations min. (ON/OFF: 1.5 s) Inverter load: 30,000 operations min. (ON: 3 s, OFF: 5 s) Ambient temperature Operating: -20C to 60C (with no icing) Ambient humidity Operating: 5% to 85% Weight Approx. 25 g Note: The data shown above are initial values. 181