Weidmüller W Series PUSH IN 4 Tool-Free Terminal Block

The Weidmüller W Series PUSH IN 4 extends the tool-free push-in spring-clamp technology to the 4 mm² conductor range, rated at 32 A / 500 V AC and accepting conductors from 0.5 mm² to 6 mm². This positions it as the tool-free equivalent of the WDU 4 screw terminal for 240 V AC auxiliary control circuits, motor starter auxiliary contacts, and higher-current instrumentation power supply outputs in Saudi industrial panel wiring. The larger clamp aperture and 6.2 mm pitch accommodate 4 mm² and 6 mm² conductors without reducing the accessible push-button release zone, ensuring that wiring technicians working in tight panel spaces in Jubail and Yanbu fabrication shops can maintain the same ergonomics at the higher conductor size. The 40 N spring-clamp force at the 4 mm² conductor level provides the same vibration-proof connection performance as the PUSH IN 2.5, confirming IEC 60947-7-1 Category B vibration compliance across the full cross-section range.

The PUSH IN 4 uses Weidmüller's universal spring body that can be operated from either the front or the side, depending on panel wiring direction — a design advantage over some competing push-in terminals that only accept front-entry wiring. This bidirectional access is particularly useful in Saudi topsides and FPSO panel applications (for ARAMCO offshore projects at Safaniyah and Zuluf fields) where panel depth is restricted by platform structural constraints and wiring must run from the side. The stainless-steel spring material is chosen for resistance to hydrogen sulphide and saline humid atmosphere, providing reliable long-term contact pressure in GRP-enclosure instrument panels in the ARAMCO Eastern Province coastal environment.

The PUSH IN 4 is used in tandem with the PUSH IN 2.5 in complete panel solutions for Saudi EPC instrumentation contractors — the 2.5 mm² variant handles instrument loops, while the 4 mm² handles solenoid valve circuits, alarm annunciator power feeds, and 24 V DC high-current power loops. SABIC's Al-Jubail utility complex uses Weidmüller PUSH IN terminals in its latest instrument panel refresh programme, citing the reduction in maintenance re-tightening callouts as a key driver alongside the initial wiring speed benefit. NEOM's OXAGON industrial port infrastructure electrical package specifies push-in spring-clamp terminals as the preferred technology for all DCS and field-device marshalling panels, aligning with Weidmüller's PUSH IN 4 capability.

Razz Middle East stocks the PUSH IN 4 in grey feed-through and blue neutral variants in Riyadh and Jeddah, with custom strip assemblies available from our Jeddah panel-support facility. We provide Saudi EPC contractors with tool-free wiring technique training sessions, ferrule selection guides for 4 mm² and 6 mm² conductors, and cross-reference documents for PUSH IN 4 versus WDU 4 versus Phoenix Contact UT 4 to support vendor-list substitution approvals on ARAMCO and SABIC projects. All supplies include Weidmüller factory test certificates, CE declarations, and SASO conformity documentation for Saudi Customs clearance.