Striebel & John ZK416 Blocco morsetti per linea principale 4 poli 250A 2CPX038539R9999

The Striebel & John ZK416 main line terminal block stands out as a robust, high-capacity connection solution engineered for demanding electrical distribution environments. Unlike standard terminal blocks that often compromise on conductor capacity or branch flexibility, this 4-pole unit (3P+N) delivers a rated current of 250 A and accommodates main conductors up to 95 mm² rigid, making it ideal for meter cabinets and distribution boards where reliable power distribution is critical. Its thoughtful design includes 12 branch connections, allowing multiple downstream circuits to be fed from a single point without sacrificing safety or performance.

Highlights

• High current rating of 250 A for main line applications
• 4-pole configuration (3 phases + neutral) for complete distribution
• Wide main conductor range: 10–95 mm² rigid, 10–70 mm² flexible
• 12 branch connections (3 per phase, 3 for neutral) for versatile wiring
• Screw terminal connection for secure, maintenance-friendly installation
• Durable polyamide housing with brass/copper terminals
• IP20 protection, suitable for indoor distribution enclosures
• Complies with IEC 60947-7-1 for terminal block safety and performance

In daily use

Installers and panel builders will appreciate the ZK416's straightforward DIN rail or direct mounting options, which simplify integration into existing setups. The generous branch connection count reduces the need for additional distribution blocks, saving space and installation time. The screw terminals provide a reliable, vibration-resistant connection that can be easily inspected and retightened during maintenance. With an operating temperature range from -25°C to +55°C and a short-circuit current rating of 25 kA for 1 second, this terminal block is built to handle the thermal and electrical stresses of real-world distribution systems.

Full specifications

• Product Type: Main Line Terminal Block
• Number of Poles: 4-pole (3P+N)
• Rated Current (In): 250 A
• Rated Voltage (Un): 400 V AC / 690 V AC
• Main Conductor Cross-section (flexible): 10 - 70 mm²
• Main Conductor Cross-section (rigid): 10 - 95 mm²
• Branch Conductor Cross-section (flexible): 1.5 - 16 mm²
• Branch Conductor Cross-section (rigid): 1.5 - 25 mm²
• Number of Branch Connections: 12 (3 per phase, 3 for neutral)
• Connection Type: Screw Terminal
• Mounting Type: DIN Rail / Direct Mounting
• Degree of Protection: IP20
• Housing Material: Polyamide (PA)
• Terminal Material: Brass / Copper
• Operating Temperature: -25°C to +55°C
• Short-circuit Current Rating (Icw): 25 kA for 1s
• Standards: IEC 60947-7-1
• Application: Distribution Boards, Meter Cabinets

Final note

For electricians and panel builders seeking a dependable, high-capacity main line terminal block, the Striebel & John ZK416 offers the performance, flexibility, and safety required for modern electrical distribution. Its robust construction and compliance with international standards ensure long-term reliability in critical installations.