6ES7421-1FH20-0AA0 SIMATIC S7-400, DIG.INPUT MOD.

Product Code: 6ES7421-1FH20-0AA0

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6ES7421-1FH20-0AA0

		SIMATIC S7-400, DIG.INPUT MOD. SM 421, OPTIC. ISOLATED, 16 DI, 120/230V UC INPUTS PER IEC1131-2 TYPE 2
Input current
from backplane bus 5 V DC, max.		80 mA
Power losses
Power loss, max.		12 W
Digital inputs
Number of digital inputs		16
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max.		16
— up to 60 °C, max.		16
Input voltage
● Type of input voltage		AC/DC
● Rated value, UC		230 V; 120/230 V UC
● for signal "0"		0 to 40 V AC/ -40 to +40 V DC
● for signal "1"		74 to 264 V AC; 80 to 264 V DC, -80 to -264 V
● Frequency range		47 ... 63 Hz
Input current
● for signal "0", max. (permissible quiescent current)		6 mA; AC: 6 mA; DC: 2 mA
● for signal "1", typ.		10 mA; at 120 V: 10 mA AC, 1.8 mA DC; at 230 V: 14 mA AC, 2 mA DC
Input delay (for rated value of input voltage)
for standard inputs
— at "0" to "1", max.		20 ms; AC: 20 ms; DC: 15 ms
Cable length
● Cable length, shielded, max.		1 000 m
● Cable length unshielded, max.		600 m
Encoder
Connectable encoders
● 2-wire sensor		Yes
— Permissible quiescent current (2-wire sensor), max.		5 mA; AC: 5 mA
Galvanic isolation
Galvanic isolation digital inputs
● between the channels, in groups of		4
● between the channels and the backplane bus		Yes
Isolation
Isolation checked with		1500 V AC
Dimensions
Width		25 mm
Height		290 mm
Depth		210 mm
Weights
Weight, approx.		650 g
last modified:		30.09.2014