Opto22 G4IAC15A

G4IAC15A G4 AC Input 180-280VAC, 15 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	G4IAC15	G4IAC15A	G4IAC24	G4IAC24A
Input voltage range	VAC or VDC	90–140	180–280	90–140	180–280
Key feature	--	--	--	--	--
Input current at maximum line	mA	5	5	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	0.7, 45	1.4, 40	0.7, 45
Nominal output supply voltage	VDC	15	15	24	24
Output supply voltage range	VDC	12-18	12-18	20-30	20-30
Output supply current at nominal logic voltage	mA	15	15	15	15
Input resistance (R1 in schematic)	ohms	28 K	70 K	28 K	70 K
Control resistance (Rc in schematic)	ohms	1 K	1 K	2.2 K	2.2 K
Output voltage drop	V @ 50 mA	0.4	0.4	0.4	0.4
Output current (sinking)	mA	50	50	50	50
Peak repetitive voltage	VAC	500	500	500	500
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