150 pcb power relay ?g4a miniature single-pole relay with 80-a surge current and 20-a switching current rohs compliant. ideal for motor switching. miniature, relay with high switching power and long endurance. creepage distance conforms to ul, csa and en standards. highly noise-resistive insulation materials employed. standard model available with flux protection construction. vde rated coil voltage note: when ordering, add the rated coil voltage to the model number. example: g4a-1a-e 12 vdc g4a- - vdc 1 2 3 4 5 rated voltage 5 vdc 12 vdc 24 vdc rated current 180 ma 75 ma 37.5 ma coil resistance 27.8 ? 160 ? 640 ? 0.8 h 3.5 h 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? power consumption approx. 0.9 w note: 1. the rated current and coil resistance are measured at a coil temperature of 23?c with a tolerance of ?0%. 2. operating characteristics are measured at a coil temperature of 23?c. 3. max. permissible voltage refers to the maximum value in a varying range of operating power voltage, not a continuous voltage. specifications coil rating coil inductance armature off (ref. value) armature on 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 model number legend 1. number of poles 1: 1 pole 2. contact form a: spst-no 3. terminals none: #250 tab/pcb coil terminals p: straight pcb/pcb terminals 4. special function e: for long endurance 5. rated coil voltage 5, 12, 24 vdc
151 pcb power relay ?g4a characteristics contact resistance 100 m ? max. operate time 20 ms max. release time 10 ms max. max. operating frequency mechanical: 18,000 operations/hr insulation resistance 1000 m ? max. (at 500 vdc) insulation resistance 100 m ? max. (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 shock resistance destruction: 1,000 m/s 2 malfunction: 200 m/s 2 v ibration 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) 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: -20? to 60? (with no icing) ambient humidity operating: 5% to 85% w eight approx. 25 g note: the data shown above are initial values. 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 (ref. value) 1 00 ma at 5 vdc note: p level: 60 = 0.1 x 10 -6 /operation (with an operating frequency of 120 operations/min). 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 (cos? 0.7) off: 1.5 s break current: 20 a (cos?= 0.9) with overload load conditions switching frequency electrical endurance 250 vac: on: 1.5 s 1,500 operations inrush current: 80 a (cos? 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 power relays
152 pcb power relay ?g4a engineering data maximum switching power endurance switching current (a) endurance (x10 operations) 3 switching voltage (v) switching current (a) ac resistive load ac inductive load cos = 0.4 250-vac resistive load 250-vac inductive load cos = 0.4 5,000 3,000 1,000 700 500 300 100 70 50 din en 61810-1/en 60255-23 (vde reg. no. 6673) model coil ratings contact ratings g4a-1a 5 to 48 vdc 20a, 250vac
153 pcb power relay ?g4a precautions mounting when mounting two or more relays side by side, provide a minimum space of 3 mm between relays. te rminal connection the terminals fit faston receptacle 250 and are suitable for positive-lock mounting. do not apply excessive force on the terminals when mounting or dismounting the relay. the following positive-lock connectors made by amp are recommended. t ype receptacle terminals positive housing #250 terminals (width: 6.35 mm) amp 170333-1 (170327-1) amp 172076-1 natural color amp 170334-1 (170328-1) amp 172076-4 yellow amp 170335-1 (170329-1) amp 172076-5 green amp 172076-6 blue note: the numbers shown in parentheses are for air-feeding. dimensions note: all units are in millimeters unless otherwise indicated; dimensions shown in parentheses are in inches. t erminal arrangement /internal connections g4a-1a-e mounting holes (bottom view) 30.5 max. (30.1)* 16 max. (15.7)* 23.5 max. (23.3)* (top view) (bottom view) t ab terminal pcb terminal f our, 1.8 +0.1 0 dia. f our, 1.8 +0.1 0 dia. 16 max. (15.7)* 26.8 max. (26.5)* 30.5 max. (30.1)* g4a-1a-pe t erminal arrangement /internal connections (bottom view) mounting holes (bottom view) *average value *average value power relays
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