What it is
The FX2N-8ER-ES/UL is a 4-input, 4-output relay expansion block for Mitsubishi FX2N-series PLCs. Inputs accept sink or source signals at 24 VDC, 5 mA typical. Relay outputs handle up to 2 A resistive per point (8 A per common) and 80 VA inductive. Response time sits around 10 ms for both input and output transitions — not for fast counting, but fine for general-purpose control.
