Omron G3NA 20 A AC solid-state relay

DC-triggered solid-state relay for switching an AC load without mechanical contacts.

Model / SKU: G3NA-220B-UTU DC5-24
Category: Relays & Contactors
Product type: Solid-state relay
Role: Control interface

Control & power

Control type: Switched power
Power supply: 5–24 V DC control input

Apply 5–24 V DC to the control input. The output switches AC only; use the specified heat sink, derating and branch protection.

A suitable smart controller can expose supported functions to Matter. The control type alone does not confirm electrical compatibility or actual position feedback.

Technical specifications

Control input: 5–24 V DCSource ↗
Output load: 20 A at 24–240 V AC with specified heat sink at 40 °C ambientSource ↗
Switching: Zero-cross AC outputSource ↗
Without heat sink: 4 A maximum at 40 °C ambient; apply manufacturer derating curvesSource ↗

Selection & installation notes

Not a DC load switch.
A heat sink and ambient-temperature derating are required to achieve the stated load current.
SSR off-state leakage means the output is not an isolating disconnect.

Sources & documentation (2)

Omron G3NA-220B-UTU DC5-24 — manufacturer information ↗Reviewed Nov 5, 2026
Omron exact model product page ↗Reviewed Nov 5, 2026

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