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    61 Products

    Terminal Blocks

    Image of Product. Front orientation. Terminal Blocks. Terminal Blocks.
    Also known as barrier terminal strips, these blocks have dividers to separate live wires and keep your setup tidy. Mount them directly onto control panels, enclosures, and equipment. A screw or stud connection creates a tight hold on the wire.
    A screw or stud connection creates a tight hold on the wire. You can insert stripped wire directly or attach a terminal to prevent damage from the fastener. Ring, spade, and hook terminals fit around the shank and hang on tightly, even in high-vibration setups. Pin terminals, blade terminals, and wire ferrules are easier to secure with the screw or stud. However, they don't stay put as well as other terminals when vibrated or pulled.
    Covers—Snap onto the top of a terminal block to prevent accidental contact with a live wire. These covers include mounting clips that fit between the block and mounting screws.
    Markers—Label your terminal block connections so you can identify them at a glance. These markers extend from underneath the terminal block.
    Terminal Blocks
    Covers
    Markers
    Mounting
    Holes
    No. of
    Circuits
    For Wire
    Ga.
    Wire
    Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Max. Temp.,
    ° F
    Color
    Dia.
    No.
    of
    Each
    Each
    Each
     
    300V AC/300V DC—20 amp per Circuit
    622 to 12Screw TerminalNo. 6
    3/8"2 15/16"7/8"1/2"257Black0.17"47527K46000007527K831000007527K15500000
     
    300V AC/300V DC—30 amp per Circuit
    622 to 12Screw TerminalNo. 6
    7/16"3 3/8"1 1/8"1/2"257Black0.18"47527K6600007527K94100007527K1750000
     
    600V AC/600V DC—20 amp per Circuit
    622 to 12Screw TerminalNo. 6
    7/16"3 3/8"1 3/8"3/4"257Black0.18"45566T8500005566T62500005566T1150000
     
    600V AC/600V DC—30 amp per Circuit
    614 to 12Screw TerminalNo. 8
    9/16"4 3/8"1 5/16"11/16"257Black0.22"45566T35000007527K35500005566T3150000
     
    600V AC/600V DC—75 amp per Circuit
    614 to 6Screw TerminalNo. 10
    11/16"5 1/4"1 13/16"3/4"266Black0.22"45566T52600000———0———0
     
    Accessories for Terminal Blocks
    Jumpers
    Image of Product. Over Barrier Jumper. Front orientation. Terminal Block Jumpers. Terminal Blocks, Over-Barrier Jumper.

    Over

    Barrier

    Jumper

    Image of Product. Around Barrier Jumper. Front orientation. Terminal Block Jumpers. Terminal Blocks, Around-Barrier Jumper.

    Around Barrier

    Jumper

    Over-Barrier Jumper—Fit these jumpers over terminal block dividers to leave free space on the side. They connect adjacent terminals so you can connect multiple components with a single wire.
    Around-Barrier Jumper—These jumpers bend around the divider for a lower profile than over-barrier jumpers. They connect adjacent terminals so you can connect multiple components with a single wire.
    For No. of
    Circuits
    For Terminal Block Voltage
    Pkg.
    Qty.
    Pkg.
    Over-Barrier Jumper
     
    For 3/8" Terminal Center-to-Center
    2300V AC/300V DC257527K59000000
     
    For 7/16" Terminal Center-to-Center
    2300V AC/300V DC257527K7900000
    2600V AC/600V DC15566T260000
     
    For 9/16" Terminal Center-to-Center
    2600V AC/600V DC15566T460000
     
    For 11/16" Terminal Center-to-Center
    2600V AC/600V DC15566T670000
     
    Around-Barrier Jumper
     
    For 3/8" Terminal Center-to-Center
    6300V AC/300V DC17527K9850000
     
    For 7/16" Terminal Center-to-Center
    6300V AC/300V DC/600V AC/600V DC15566T7750000
     
    Quick-Disconnect Adapters
    Image of Product. Straight. Front orientation. Terminal Block Adapters. Straight.

    Straight

    Image of Product. 90° Angle. Front orientation. Terminal Block Adapters. 90° Angle.

    90° Angle

    Image of Product. 45° Angle. Front orientation. Terminal Block Adapters. 45° Angle.

    45° Angle

    Convert screw terminal connections into quick-disconnect terminal connections.
    Shape
    For Terminal Block Voltage
    Tab
    Wd.
    Pkg.
    Qty.
    Pkg.
    For 3/8" Terminal Center-to-Center
    Straight300V AC/300V DC0.187"257527K11000000
    90° Angle300V AC/300V DC0.187"257527K5800000
    45° Angle300V AC/300V DC0.187"257527K5700000
     
    For 7/16" Terminal Center-to-Center
    Straight300V AC/300V DC/600V AC/600V DC0.250"257527K1200000
    90° Angle300V AC/300V DC/600V AC/600V DC0.250"257527K7800000
    45° Angle300V AC/300V DC/600V AC/600V DC0.250"257527K7700000
     
    For 9/16" Terminal Center-to-Center
    Straight300V AC/300V DC/600V AC/600V DC0.250"257527K1300000
    90° Angle300V AC/300V DC/600V AC/600V DC0.250"257527K3800000
    45° Angle300V AC/300V DC/600V AC/600V DC0.250"257527K3700000
     

    Touch-Safe Terminal Blocks

    Image of Product. Style A. Front orientation. Terminal Blocks. Touch-Safe Terminal Blocks, Style A, Screw-Clamp-Terminal Wire Connection.
    Image of Product. Style B. Front orientation. Terminal Blocks. Touch-Safe Terminal Blocks, Style B, Screw-Clamp-Terminal Wire Connection.

    Style A

    Style B

    Image of Product. Style C. Front orientation. Terminal Blocks. Touch-Safe Terminal Blocks, Style C, Screw-Terminal Wire Connection.

    Style C

    These terminal blocks protect you from shocks and prevent short circuits. The terminals are recessed in the block, so you can't accidentally touch them when installing or adjusting your wire.
    Screw-Clamp-Terminal Wire Connection—The clamp flattens the wire to resist pullout and vibration better than screw terminals. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire.
    For DIN 3 Rails—Unlike other surface-mount terminal blocks, these have a notch that snaps onto DIN 3 rail. You can also screw them directly onto your control panel or other surface.
    Markers—Label your terminal block connections so you can identify them at a glance. These markers extend from underneath the terminal block.
    Terminal Blocks
    Markers
    Mounting
    Holes
    Style
    No. of
    Circuits
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Max. Temp.,
    ° F
    Color
    For DIN Rail
    Trade Size
    Dia.
    No.
    of
    Enclosure
    Rating
    Each
    Pkg.
    Qty.
    Pkg.
     
    600V AC/600V DC—20 amp per Circuit
    A622 to 12Screw-Clamp TerminalM3
    5/16"1 13/16"3/4"3/4"221White0.12"57618K61400000———0
     
    600V AC—30 amp per Circuit
    B618 to 10Screw-Clamp TerminalNo. 8
    9/16"3 1/2"1 3/16"1 3/4"220Black30.18"2IP20
    8839T1200000108839T12400000
     
    600V AC/600V DC—30 amp per Circuit
    A618 to 10Screw-Clamp TerminalM3
    3/8"2 1/4"3/4"13/16"221White0.15"57618K6340000———0
     
    600V AC/600V DC—40 amp per Circuit
    A620 to 8Screw-Clamp TerminalM3
    1/2"2 11/16"15/16"7/8"221White0.17"57618K6540000———0
     
    600V AC/600V DC—63 amp per Circuit
    A614 to 6Screw-Clamp TerminalM3
    9/16"3 3/8"1 1/8"1 1/16"221White0.17"57618K6740000———0
     
    600V AC/600V DC—85 amp per Circuit
    C618 to 4Screw Terminal1/4"
    5/8"3 11/16"1 1/4"1 1/8"302Black0.18"59130K4500000———0
     

    Space-Saving Terminal Blocks

    Image of Product. Front orientation. Terminal Blocks. Space-Saving Terminal Blocks.
    These single-row terminal blocks connect the same number of circuits as double-row blocks, but in a narrower footprint. Also known as barrier terminal strips, they have dividers to separate live wires and keep your setup tidy. Mount them directly onto control panels, enclosures, and equipment.
    You can screw down your stripped wire directly or attach a terminal to prevent damage from the screw. Ring, spade, and hook terminals fit around the screw and hang on tightly, even in high-vibration setups. Pin terminals, blade terminals, and wire ferrules are easier to slip under the screw head, but they don't stay put as well as other terminals when vibrated or pulled.
    Note: Stick the included insulation strip to the bottom of the block before installing. The voltage listed applies only when the strip is attached.
    Mounting
    Holes
    No. of
    Circuits
    For Wire
    Ga.
    Wire
    Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Max. Temp.,
    ° F
    Color
    Dia.
    No.
    of
    Each
     
    150V AC/150V DC—15 amp per Circuit
    622 to 16Screw TerminalNo. 5
    3/8"2 15/16"9/16"7/16"302Black0.17"28173T13000000
     
    600V AC/600V DC—30 amp per Circuit
    614 to 12Screw TerminalNo. 8
    9/16"4 5/16"3/4"3/4"302Black0.21"28173T5300000
     

    Enclosure-Mounted Terminal Blocks

    Image of Product. Center Terminal Block. Front orientation. Terminal Blocks. Enclosure-Mounted Terminal Blocks, Center Terminal Block, Screw-Clamp-Terminal Wire Connection.

    Center Terminal Block

    Image of Product. Side Terminal Block. Front orientation. Terminal Blocks. Enclosure-Mounted Terminal Blocks, Side Terminal Block, Screw-Clamp-Terminal Wire Connection.

    Side Terminal Block

    These blocks come mounted in an enclosure that you can pop directly onto walls or equipment. They also reduce hassle because you can wire your circuits before installing the enclosure. Enclosures protect the terminal blocks from water, oil, and corrosion. Knockouts make it easy to run wire in and out of the enclosure. For enclosures without knockouts, you’ll need to drill your own holes for the wiring.
    The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire. If you need to change wiring frequently without adjusting a screw, consider a terminal block with spring-clamp terminals.
    ABS—Tough yet lightweight, these enclosures shield terminal blocks from incidental knocks on busy worksites. They also keep their strength and shape when exposed to water and mild detergents.
    Powder-Coated Aluminum—Even more durable and impact resistant than ABS.
    Knockouts
    Gray
    White
    No. of
    Circuits
    No. of Terminals
    per Circuit
    Current per
    Circuit, amp
    Voltage,
    V AC
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Ht.
    Wd.
    Dp.
    No.
    of
    Trade Size
    Enclosure
    Rating
    Terminal
    Ctr.-to-Ctr.
    Each
    Terminal
    Ctr.-to-Ctr.
    Each
    Center Terminal Block
     
    ABS
    621512020 to 14Screw-Clamp TerminalNo. 6
    3 9/16"2 9/16"1 3/4"21/2, PG-13.5
    IP65, NEMA 6
    11/32"1041N1200000011/32"1041N332000000
     
    Side Terminal Block
     
    ABS
    621512020 to 14Screw-Clamp TerminalNo. 6
    3 1/8"2 9/16"1 3/4"31/2, PG-13.5
    IP65, NEMA 6
    5/16"1041N140000011/32"1041N34600000
     
    Powder-Coated Aluminum
    621512020 to 14Screw-Clamp TerminalNo. 6
    3 11/16"2 3/4"2 1/16"IP67, NEMA 12
    5/16"1041N34700000———0
     

    Through-Panel Terminal Blocks

    Image of Product. Front orientation. Terminal Blocks. Through-Panel Terminal Blocks.
    Mount these terminal blocks in a panel cutout to connect components on opposite sides. The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire.
    For Panel
    Cutout
    Mounting
    Holes
    No. of
    Circuits
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Lg.
    Ht.
    Max. Temp.,
    ° F
    Color
    Dia.
    No.
    of
    Each
    600V AC/600V DC—60 amp per Circuit
    610 to 3Screw-Clamp TerminalM5
    5/8"4 15/16"1 13/16"1 3/16"3 7/8"1"194Black0.21"28056T16000000
     

    Touch-Safe Plug-and-Socket Terminal Blocks

    Image of Product. Plug. Front orientation. Terminal Blocks. Touch-Safe Plug-and-Socket Terminal Blocks, Plugs, Screw-Terminal Wire Connection.

    Plug

    Image of Product. Socket. Front orientation. Terminal Blocks. Touch-Safe Plug-and-Socket Terminal Blocks, Sockets, Screw-Terminal Wire Connection.

    Socket

    These terminal blocks cut power when you pull the plug while protecting you from shocks. The terminals are recessed, so you can't accidentally touch them when installing or adjusting wire. You can wire the plug away from the block, then attach it to the socket you've already installed. Blocks can be cut into smaller sections. You'll need one plug and one socket for a complete terminal block.
    You can screw down your stripped wire directly or attach a terminal to prevent damage from the screw. Ring, spade, and hook terminals fit around the screw and hang on tightly, even in high-vibration setups. Pin terminals, blade terminals, and wire ferrules are easier to fit into the block, but they don't stay put as well as other terminals when vibrated or pulled.
    Mounting
    Holes
    No. of
    Circuits
    For Wire
    Ga.
    Wire
    Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Max. Temp.,
    ° F
    Color
    Dia.
    No.
    of
    Each
    Plugs
     
    600V AC/600V DC—20 amp per Circuit
    624 to 10Screw TerminalM3
    3/8"2 1/4"9/16"3/4"221White0.12"581905K1300000
     
    Sockets
     
    600V AC/600V DC—20 amp per Circuit
    624 to 10Screw TerminalM3
    3/8"2 1/4"13/16"3/4"221White0.14"581905K230000
     

    Plug-and-Socket Circuit Board Terminal Blocks

    Image of Product. Plug. Front orientation. Terminal Blocks. Plug-and-Socket Circuit Board Terminal Blocks, Plugs, Screw-Clamp-Terminal Wire Connection.
    Image of Product. Socket. Front orientation. Terminal Blocks. Plug-and-Socket Circuit Board Terminal Blocks, Sockets.

    Plug

    Socket

    Cut power with the pull of a plug when you need to swap out equipment or adjust your circuit. You can wire the plug away from the terminal block, then pop it into the socket you've already installed. Pins on the bottom of these blocks are spaced to match the layout of circuit boards. Solder them onto your board for a secure hold. You'll need one plug and one socket for a complete terminal block.
    The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire.
    Pin
    No. of
    Circuits
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Lg.
    Material
    Max. Temp.,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
    Plugs
     
    300V AC—18 amp per Circuit
    626 to 12Screw-Clamp TerminalM3
    3/16"1 3/16"1/2"11/16"220Black105701N18000000
     
    Sockets
     
    300V AC—18 amp per Circuit
    63/16"1 1/4"5/16"1/2"0.13"Tin-Plated Nickel220Black105701N1300000
     

    Terminal Blocks for Thermocouples

    Image of Product. Bottom orientation. Terminal Blocks. Terminal Blocks for Thermocouples.
    Unlike other terminal blocks, these blocks connect to thermocouple wire without distorting or destroying the signal. The metal in each terminal matches the metal of a specific thermocouple wire type. The ends of the blocks are labeled positive or negative so you know which end of the wire to attach.
    Also known as a barrier strip, this type of terminal block has dividers to separate live wires and keep your setup tidy. Mount the blocks directly onto control panels, enclosures, and equipment. The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled.
    Mounting
    Holes
    No. of
    Circuits
    No. of Terminals
    per Circuit
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Max. Temp.,
    ° F
    Color
    Dia.
    No.
    of
    Each
    For J Thermocouple Wire Type
     
    250V AC—20 amp per Circuit
    6416 to 14Screw-Clamp TerminalNo. 6
    7/16"7 1/8"1 5/16"1/2"300Black0.17"47882N17000000
     
    For K Thermocouple Wire Type
     
    250V AC—20 amp per Circuit
    6416 to 14Screw-Clamp TerminalNo. 6
    7/16"7 1/8"1 1/8"1/2"300Black0.17"47882N1800000
     
    For T Thermocouple Wire Type
     
    250V AC—20 amp per Circuit
    6416 to 14Screw-Clamp TerminalNo. 6
    7/16"7 1/8"1 5/16"1/2"300Black0.17"47882N1900000
     

    Clear-View Enclosure-Mounted Terminal Blocks

    Image of Product. Center Terminal Block. Front orientation. Terminal Blocks. Clear-View Enclosure-Mounted Terminal Blocks, Center Terminal Block, Screw-Clamp-Terminal Wire Connection.

    Center Terminal Block

    Image of Product. Side Terminal Block. Front orientation. Terminal Blocks. Clear-View Enclosure-Mounted Terminal Blocks, Side Terminal Block, Screw-Clamp-Terminal Wire Connection.

    Side Terminal Block

    A clear plastic cover lets you inspect your terminal block while keeping out dirt and liquids. These blocks come mounted in an enclosure that you can pop directly onto walls or equipment. They also reduce hassle because you can wire your circuits before installing the enclosure. Enclosures protect the terminal blocks from water, oil, and corrosion. Knockouts make it easy to run wire in and out of the enclosure. For enclosures without knockouts, you’ll need to drill your own holes for the wiring.
    The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire. If you need to change wiring frequently without adjusting a screw, consider a quick-connect terminal block with spring-clamp terminals.
    ABS—Tough yet lightweight, these enclosures shield terminal blocks from incidental knocks on busy worksites. They also keep their strength and shape when exposed to water and mild detergents.
    Knockouts
    Gray
    No. of
    Circuits
    No. of Terminals
    per Circuit
    Current per
    Circuit, amp
    Voltage,
    V AC
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Ht.
    Wd.
    Dp.
    No.
    of
    Trade Size
    Enclosure
    Rating
    Terminal
    Ctr.-to-Ctr.
    Each
    Center Terminal Block
     
    ABS
    621512020 to 14Screw-Clamp TerminalNo. 6
    3 9/16"2 9/16"1 3/4"21/2, PG-13.5
    IP65, NEMA 6
    11/32"1041N13000000
     
    Side Terminal Block
     
    ABS
    621512020 to 14Screw-Clamp TerminalNo. 6
    3 1/8"2 9/16"1 3/4"31/2, PG-13.5
    IP65, NEMA 6
    11/32"1041N1500000
     

    Circuit Board Terminal Blocks

    Image of Product. Front orientation. Terminal Blocks. Circuit Board Terminal Blocks.
    Pins on the bottom of these terminal blocks are spaced to match the layout of circuit boards. Solder them onto your board for a secure hold.
    The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire.
    Over-Barrier Jumpers—Fit these jumpers over terminal block dividers to leave free space on the side. They connect adjacent terminals so you can connect multiple components with a single wire.
    Terminal Blocks
    Over-Barrier Jumpers
    Pin
    No. of
    Circuits
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Lg.
    Material
    Max. Temp.,
    ° F
    Color
    Each
    Pkg.
    Qty.
    Pkg.
     
    300V AC/300V DC—25 amp per Circuit
    622 to 12Screw-Clamp TerminalNo. 6
    3/8"2 5/16"5/8"11/16"0.19"Tin-Plated Brass230Black8076K1600000508076K29000000
     
    Quick-Disconnect Adapters
    Image of Product. Straight. Front orientation. Terminal Block Adapters. Straight.
    Image of Product. 90° Angle. Front orientation. Terminal Block Adapters. 90° Angle.
    Image of Product. 45° Angle. Front orientation. Terminal Block Adapters. 45° Angle.

    Straight

    90° Angle

    45° Angle

    Convert screw terminal connections into quick-disconnect terminal connections.
    Shape
    Tab
    Wd.
    Pkg.
    Qty.
    Pkg.
    Straight0.187"1008076K31000000
    90° Angle0.187"508076K280000
    45° Angle0.187"1008076K2700000
     

    Terminal Blocks for RTD and Thermocouple Connection Heads

    Image of Product. Oblong. Front orientation. Terminal Blocks. Terminal Blocks for RTD and Thermocouple Connection Heads, Oblong, Screw-Terminal Wire Connection.
    Image of Product. Round. Front orientation. Terminal Blocks. Terminal Blocks for RTD and Thermocouple Connection Heads, Round, Screw-Terminal Wire Connection.

    Oblong

    Round

    These terminal blocks fit inside connection heads for thermocouples and RTD. Make sure the block has enough circuits for your probe, and use a wire that matches your probe type. You can insert stripped wire directly or attach a terminal to prevent damage from the fastener.
    Mounting
    Slots
    No. of
    Circuits
    For Max.
    Wire Ga.
    Wire
    Connection
    Dia.
    Ht.
    Wd.
    Dp.
    For Thermocouple
    Wire Type
    For RTD Probe
    Resistance
    Max. Temp.,
    ° F
    Material
    Ht.
    Wd.
    No.
    of
    Each
    Oblong
    614
    Screw Terminal1 3/8"2"1"J, JX, K, KK, KX, T, TX100 Ω; 1,000 Ω1,000Ceramic3/16"9/16"25927N12000000
     
    Round
    614
    Screw Terminal1 15/16"3/4"J, JX, K, KK, KX, T, TX100 Ω; 1,000 Ω1,000Ceramic3/16"5/16"25927N1600000
     

    Space-Saving Circuit Board Terminal Blocks

    Image of Product. Front orientation. Terminal Blocks. Space-Saving Circuit Board Terminal Blocks.
    Streamline wiring on small or crowded circuit boards. These terminal blocks connect the same number of circuits as larger blocks in about half the space. Pins on the bottom are spaced to match the layout of circuit boards. Solder them onto your board for a secure hold.
    The screw-clamp terminals flatten your wire so it stays put when vibrated or pulled. For an even stronger and more conductive connection, crimp a terminal or wire ferrule onto the end of the wire.
    Pin
    No. of
    Circuits
    For Wire
    Ga.
    Wire Connection
    Terminal
    Size
    Terminal
    Ctr.-to-Ctr.
    Lg.
    Wd.
    Ht.
    Lg.
    Material
    Max. Temp.,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
     
    300V AC—15 amp per Circuit
    622 to 12Screw-Clamp TerminalM3
    3/16"1 3/16"3/8"9/16"0.12"Tin-Plated Nickel220Black55747N15000000
     
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