Distribution block ORNO OR-LZ-8207/250 250A input clamp 1x120mm, outputs 4x10mm & 5x16mm & 2x25mm

ORNO OR-LZ-8207/250 is a 250A distribution block designed for safe and organized splitting of a main conductor into multiple output circuits. The unit accepts a single large input conductor and provides a combination of smaller output terminals, making it suitable for installation in electrical panels and switchboards in both industrial and residential settings. Constructed to support clear conductor routing, the distribution block helps maintain neat wiring and reliable connections where a high-current input must be distributed across several downstream circuits.

Advantages

The distribution block supports up to 250 A on the input, allowing a single large conductor to feed multiple branch circuits. It includes a dedicated input clamp for a 1x120 mm conductor and a mix of output terminals sized to accommodate different conductor gauges. The design simplifies panel wiring by centralizing bus splitting in one compact unit and reduces the number of individual connection points on the main bus. Materials and terminal arrangements are selected to provide stable mechanical and electrical contact under typical installation conditions.

Suitable for

• Electrical distribution in switchboards and control panels
• Splitting a high-current supply to multiple branch circuits in industrial installations
• Residential main panel distribution where mixed conductor sizes are required
• Service or renovation projects requiring organized conductor routing and secure terminations

Key specifications

• Rated current: 250 A (input)
• Input clamp capacity: single conductor up to 1 × 120 mm
• Output terminals: 4 × 10 mm, 5 × 16 mm, 2 × 25 mm
• Mounting: panel or switchboard installation
• Function: fixed distribution block for splitting a main supply into multiple outputs

How to use

Mount the distribution block securely inside the electrical panel or switchboard according to the enclosure manufacturer's and local electrical codes. Connect the main feed conductor into the input clamp sized for a 1×120 mm cable and tighten the clamp to the torque values recommended for the conductor type. Connect branch conductors to the appropriate output terminals (10 mm, 16 mm or 25 mm) matching conductor cross-sections to terminal sizes. Ensure all connections are tightened, insulated where required, and that the panel power is isolated during installation and maintenance.

Usage recommendations

Verify compatibility of conductor materials (copper or aluminium) and use correct lugs or ferrules if required. Follow local wiring regulations, torque specifications, and ensure adequate clearance and protection against accidental contact. Periodically inspect terminal tightness and signs of overheating after initial commissioning and during scheduled maintenance.