Item no. 741-133 PCB terminal block; push-button; 2.5 mm²; Pin spacing 5 mm; 3-pole; CAGE CLAMP®; clamping collar; gray Dimensions in mmL = (pole no. – 1) x pin spacing + 6.5 mm + 1.5 mmL1 = L + 5.8 mmL2 = L1 + 6 mm