The 3RT2327-2BB40: The DC coil pulls in at 0.8 × rated voltage (19.2 V) and holds reliably across the 0.8 to 1.1 × Us operating window — important when the DC supply is shared with other inductive loads that sag during inrush. Main contact current ratings are given per IEC utilization category: 10 A at both 24 V and 230 V (resistive or general-purpose), with DC switching capability down to 0.1 A at 600 V. The arcing time of 10 ms and the 15–18 ms drop-out delay (at DC) give the PLC or safety relay enough window to confirm the state change before the next scan.
Spring terminals and wire sizing for the wireman
No screw torque to verify — the cage holds the conductor with a defined contact force that doesn't relax under thermal cycling. The S0 frame measures 60 mm wide × 102 mm high × 107 mm deep.