Using DIN Rail Mount Terminal Blocks for Low Voltage and Line Voltage Wiring Projects

A colleague of mine with experience in automation put me on to the Phoenix contacts screw terminal blocks. These are modular, and clip onto DIN rails, in any configuration or sequence you would like. They come in differnent colors, come with different dividers and end caps, and let you clean up junction boxes and panels with a very professional, organized look.

Lighting Relay Panel - Upgraded to Insteon Devices - All Interconnection Wiring Done with Phoenix Contacts Terminal Blocks. Note the plastic cable channels for routing wiring.
Check out my page on updating a 1980's relay panel with Insteon devices to learn more about this project.
Completed Panel, with Covers installed on the Plastic cable channels. All wiring now hidden, Connections very neat using the terminal blocks.
DIN Rail Mount Hesila Fuseholder - Light illuminutes when fuse is blown. Very useful when using sub-guage wiring below the guage required for standard house breakers. 
DIN Rail Mount Hesila Fuseholder - Opened to replace fuse. Uses 5 x 20mm standard tubular fuses. Note the junpers on the standard terminal blocks - used for cross connecting the circuits on the standard terminal blocks.
If you have access to electrical / automation wholesalers - you should be able to purchase these fuseholders / terminal blocks there if you require them. Another alternative are your local electronics suppliers / electronics parts suppliers - they will normally carry some brand of modular DIN rail mounting terminal blocks.

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