25.503.6253.0 is a marked PCB connector terminal block designed for printed circuit board applications with insulating plate and fixing bolts. This 2-pole connector features a 5.08 mm spacing and is configured with an insulating plate for electrical isolation and mechanical stability. The terminal block accommodates wire gauges from No. 22 to 12 AWG and supports a rated voltage of 300 V with a current capacity of 20/30 A. The solder pins measure 0.9 x 0.9 mm with a bore hole diameter of 13 mm, and the wire connection angle is 35° to the PCB. This connector is commonly used in industrial control systems, automation equipment, and power distribution applications where reliable PCB-mounted electrical connections are required.