PCB terminal block, 237 Series, screw connection This PCB terminal block (item number 237-102) streamlines wire connections, making them both quick and easy. It offers the flexibility needed for different mounting types. Ensure that the strip lengths are between 5 and 7 mm when connecting conductors to this PCB terminal block. Featuring one conductor terminal along with a screw connection, this connector delivers reliable performance. When properly tightened, screw-clamp connections ensure that wires are connected securely—both physically and electrically—as they make contact with a large section of wire. Depending on the conductor type, this PCB terminal block is suitable for conductor cross sections ranging from 0.5 mm² to 2.5 mm². Tin is used for coating the contact surfaces. This PCB terminal block is operated with an operating tool. THT is used to solder the PCB terminal block. Insert the conductor at a 0° angle..