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FAQ02044 of Solid-state Relays FAQ

FAQ No. FAQ02044

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Question

Does the input current change for Solid-state Relays with a wide rated input voltage?

Answer



In Solid-state Relays which have wide input voltages (such as G3F and G3H), the input impedance depends on the input voltage and changes in the input current. For semiconductor-driven Solid-state Relays, changes in voltage can cause malfunctions in the semiconductor, so be sure to check the actual device before usage.

This is not the case for Solid-state Relays with DC inputs that use a constant current input method (such as G3NA and G3PA).

Ratings

Applicable modelItemRated voltageOperating voltageImpedance
Model
G3H-203SN5 to 24 VDC4 to 28 VDC1.5 kΩ +20%, -10% *
G3H-203SLNDC5 V4 to 6 VDC390 Ω ±20%
12 V9.6 to 14.4 VDC900 Ω ±20%
24 V19.2 to 28.8 VDC2 kΩ ±20%
G3HD-X03SN5 to 24 VDC4 to 28 VDC1.5 kΩ +20%, -10% *
G3H-203S4 to 24 VDC3 to 28 VDC1.5 kΩ +20%, -10% *
G3H-203SLDC5 V4 to 6 VDC390 Ω ±20%
12 V9.6 to 14.4 VDC900 Ω ±20%
24 V19.2 to 28.8 VDC2 kΩ ±20%
G3HD-X03S4 to 24 VDC3 to 28 VDC1.5 kΩ +20%, -10% *

Note:The input impedance is measured at the maximum operating voltage.

Applicable Input Impedance for a Photocoupler-type Solid-state Relays without Indicators (Typical Example)

G3F or G3H (No Indicators)

Applicable Input Impedance for a Photocoupler-type Solid-state Relays with Indicators (Typical Example)

G3B, G3F, or G3H (with Indicators)

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