METWAY 3 WAY FUSED TERMINAL BLOCK
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The 503SI03E, identified as a METWAY 3-way fused terminal block, likely incorporates three independent terminal connections, each protected by an integrated fuse. Based on common METWAY terminal block designs, the block likely accepts standard blade fuses, possibly 5x20mm or similar, providing overcurrent protection for connected circuits. The terminal connections likely utilize screw clamp or spring clamp mechanisms to secure conductors ranging from 0.5mm² to 2.5mm² (AWG 20-14), depending on the specific METWAY series. The block’s housing is likely constructed from a flame-retardant polyamide material, offering insulation and mechanical protection. Voltage and current ratings are unknown without further datasheet information, but typical values for similar METWAY blocks are 250V/6.3A or 400V/10A. The block is likely DIN rail mountable, conforming to EN 60715 standards for secure installation within electrical panels.