SQUARE D 8501NR43 Socket, 11 Pin, DIN Rail/Screw, 300VAC, 10A. More details: Relay Socket, Square, Number of Pins 11, Voltage 300VAC, Mounting DIN Rail/Screw, Socket Code E, Terminals Screw Clamp, Length 2.75 In., Width 1.58 In., Depth 1.00 In., Standards CE, CSA, RoHS, UL Recognized