PK 104

The PK 104 series comprises fixed PCB terminal blocks with a wire-protection connection design, offering a 5 mm pitch and available in pole counts ranging from 2 up to 24, and in both green and dark grey variants. Each terminal is rated for 32 A at 250 V, with 2 kV impulse voltage support, conforming to Overvoltage Category III and Pollution Degree 3. The connector housing is moulded from flame-retardant polyamide 6.6 (UL94-V0), featuring a horizontal (0°/180°) wire-to-PCB configuration and securing wires via robust wire-protection clamping. Mechanical precision is evident in its compact dimensions, 9.3 mm length, 10.7 mm width, and 12.5 mm height, with a 2 mm drill hole, 1.2 mm pin diameter, and 2.5 mm pin protrusion. It accommodates a wide range of conductor types: solid wires from 0.2 to 4 mm², stranded wires up to 4 mm² (with ferrules up to 2.5 mm²), and even supports AWG 22 to 12, secured by M3 screws torqued to 0.5 Nm. Additional robust features include a CTI of 600, glow-wire resistance (GWFI 850 °C / GWIT 775 °C with 30 s after-glow), insulation resistance of 1 × 10¹³ Ω·cm, and support for wave-soldering at 265 °C for 3–4 s.

The PK 104 series is ideal for high-current PCB wiring in control panels, automation systems, and industrial equipment where compact, reliable, and safe wire-to-board terminations are required. Its wire-protection clamp design enhances conductor security by reducing stress and preventing strand damage, thereby improving longevity and assembly quality. The high current and voltage capability makes it suitable for power distribution, motor control, and heavy-duty sensor or actuator interfaces. The broad conductor size compatibility, including ferrule support, ensures clean and dependable terminations in field assembly or maintenance work. Safety and quality are further assured by UL, cUL, and VDE approvals, making the PK 104 suitable for compliance-focused markets and demanding industrial environments.