Terminal blocks provide easy connection of panel-mounted electronic components to device power and field wiring. A wide variety of modular terminal blocks are available in various styles and specialized purposes to make quick, clean, safe and efficient installations.
Terminal blocks are insulated modular blocks that connect two or more wires together. Basic terminal blocks consist of a wire clamping mechanism for each wire with a conductive metal strip between them. Terminal blocks provide secure connections, easier wire installation/removal, and better organization than other connection methods. Several varieties of terminal blocks are available, many for specific purposes, across the brand/series offered.
Terminal blocks are sold in cost-saving multi-packs of up to 100, or in convenience packs of lower quantities, depending on part number.
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Single-level feed-through terminal blocks are the simplest type of terminal block, designed to support one input and one output connection. They are available in various colors, wire size options, and other features, depending on series.
$6.75 / 20pk.
Double-level feed-through terminal blocks allow space savings by providing two independent connection terminals in a single block. They are available in various colors and wire size options, depending on series. Certain series are available with an optional LED indicator and other features.
$115.00 / 50pk.
Triple-level feed-through terminal blocks provide three connection terminals for even more space savings, available in various colors, wire size accommodation and other options, depending on series.
$32.50 / 20pk.
Mini terminal blocks are used in areas with extremely limited space requirements and are only mountable on 15mm DIN rails.
$13.00 / 25pk.
Common point terminal blocks are designed for applications requiring multiple wires to be tied together. They are available in one-to-two or two-to-two configurations and utilize multiple spring clamps that are all connected to a singular internal conductive strip. LED and diode variations are also available.
$30.50 / 25pk.
Grounding terminal blocks are used to electrically connect wires to the DIN rail by means of a conducting clamping foot. In this way, the DIN rail can function as a ground bus bar. Grounding terminal blocks offer low contact resistance, corrosion-free connection points, and feature an easily identified yellow-green colored housing.
$22.00 / 10pk.
Circuit protection terminal blocks, sometimes referred to as fused terminal blocks, utilize replaceable fuses or circuit breakers/disconnects for the connection between the attached wires. Various models are available for fuses, circuit disconnects, or supplementary circuit breakers.
$27.00 / 10pk.
Disconnect terminal blocks are a simple solution when the circuit wired to the terminal block needs to be opened on occasion for maintenance, etc. or to perform tests while the system is powered. Disconnection may be via moveable jumper bar or pivoting knife blade, depending on series.
$22.00 / 10pk.
Plug-in terminal blocks support connectors/plugs (sold separately) that can be removed, wired with the desired connections, and inserted back into the terminal block.
$46.00 / 32pk.
Thermocouple terminal blocks are designed with only one screw clamp to provide suitable connections for thermocouple sensors. These clamping yoke terminal blocks will accept any type of thermocouple lead connection within their rated wire size range, providing excellent continuity without the need for any other compensation metals/contacts.
$39.50 / 10pk.
Mini supplementary protectors are used with select circuit protection terminal blocks to add supplementary protection to any circuit quickly and easily.
Terminal plugs (aka terminal plugs) are used for plug-in terminal blocks to provide various terminal connections.
$6.25 / 10pk.
End brackets prevent terminal blocks and other DIN rail mount components and devices from moving laterally on the rail.
$4.25 / 10pk.
End covers are used to cover the open side of DIN-rail mounted terminal blocks, providing a protection barrier from potential electrical hazard. They should be used at the end of an assembly of identical terminal blocks or whenever there is a change in the physical size of the terminal block.
$2.75 / 10pk.
Separators are used to segment banks of terminal blocks, making it possible to maintain a single row of terminal blocks while having separate power source clusters.
$4.25 / 10pk.
Top covers snap on top of terminal blocks to prevent accidental contact with personnel or other equipment.
$8.75 / 25pk.
Jumpers provide quick and easy connections between terminal blocks.
$9.50 / 25pk.
Marking tags provide identification of terminal blocks and wires. Tags are available either blank or in various preprinted designs.
$10.50 / 250pk.
Terminal block accessories to aid in installation include:
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