OPT-G4IAC5A

G4IAC5A G4 AC Input 180-280 VAC, 5 VDC Logic

Opto 22’s G4 AC input modules are used to detect on/off AC voltage levels. Each module provides up to 4000 volts of
optical isolation (transient) between field inputs and the logic output of the circuit.

All AC input modules are designed with filtering on the input and a hysteresis amplifier, providing high noise rejection
and transient-free “clean” switching.

Typical applications for AC input modules include sensing the presence or absence of voltage, and sensing contact
closure from sources such as proximity switches, limit switches, float switches, selector switches, push buttons, toggle
switches, and thermostats.

	Units	G4IAC5	G4IAC5L	G4IAC5A	G4IAC5MA
Input voltage range	VAC or VDC	90–140	90-140	180-280	90-140
Key feature	--	--	Low R in	--	Diagnostic switch
Input current at maximum line	mA	5	11	5	5
Isolation, input-to-output (transient): 1 ms 1 minute	V V	4000 1500	4000 1500	4000 1500	4000 1500
Turn-on time	ms	20	20	20	20
Turn-off time	ms	20	20	20	20
Input allowed for off-state	mA, V	1.4, 40	3, 45	0.7, 45	1.4, 40
Nominal output voltage supply	VDC	5	5	5	5
Output supply voltage range	VDC	4.5–6	4.5–6	4.5–6	4.5–6
Output supply current at nominal logic voltage	mA	12	12	12	12
Input resistance (R1 in schematic)	ohms	28 K	14 K	70 K	28 K
Control resistance (Rc in schematic)	ohms	220	220	220	220
Output voltage drop	V @ 50 mA	0.4	0.4	0.4	0.4
Output current (sinking)	mA	50	50	50	50
Output leakage with no input	microamps @ 30 VDC	100	100	100	100
Transistor	V breakdown	30	30	30	30
Temperature Operating: Storage:	°C °C	-30 to +70 -30 to +85	-30 to +70 -30 to +85	-30 to +70 -30 to +85	-30 to +70 -30 to +85

Rev: 04/13