Description

Compact Power Distribution Block (125A)

This image displays a compact, multi-pole power distribution block, essential for safely and efficiently splitting electrical power in control panels and switchgear.

Key Features & Specifications (Based on visible markings):

• Type: Multi-pole distribution block (often referred to as a terminal block or busbar enclosure). It features multiple brass or copper bars for power distribution.
• Enclosure: It utilizes a transparent blue polycarbonate cover. This provides critical touch-safe protection (IP20 rating typically) while allowing visual inspection of the connections without removing the cover.
• Current Rating: 125A. This indicates the maximum continuous current the block is designed to handle safely.
• Voltage Rating (Ui): 500V. This is the rated insulation voltage.
• Short-Circuit Withstand (Ipk): 20kA. This specifies the peak short-circuit current the device can withstand momentarily.
• Operating Temperature: Rated for up to 40°C.
• Standards Compliance: Marked with EN 60947-1, confirming it meets international standards for low-voltage switchgear and controlgear. It also bears the CE mark.
• Wire Capacity Guide: The front cover features a printed, easy-to-read table detailing the accepted wire sizes and types for the different connection points:
  • It accommodates both flexible wire with ferrules (starfix) and rigid/stranded wire.
  • The table indicates hole diameters (Ø 5.3, Ø 7.5, Ø 9) and the corresponding cross-sectional areas they accept (ranging from 1.5 mm to 35 mm depending on the specific terminal and wire type).
• Connections: The block uses standard screw terminals for securing the conductors to the internal busbars.

Typical Applications:

These distribution blocks are commonly used to take a main power feed and distribute it to multiple smaller circuits within industrial control panels, automation systems, and electrical distribution boards. They offer a neat, organized, and safer alternative to daisy-chaining wires.