Screwless Double-Level Terminal Blocks and Accessories
DINnectors™ (DIN Rail Terminal Blocks)
Screwless terminal blocks save time and money. They offer a quick and easy clamping system that is vibration proof and maintenance free. Just push the spring clamp, insert the wire and release.
- Faster installation than standard screws
- Easy clamp-system connection
- Vibration-proof connection
- Maintenance free
- Meets UL, CSA and IEC standards
Screwless Double-Level Terminal Blocks
Double-level terminal blocks offer twice the
wiring density of feed-through blocks. The
DN-QD12X version is supplied with an
internal jumper to common all four of its
connection points.
LED version: This style is available with LED indicator
installed. The LED illuminates when voltage
is present. The DN-QD12L2 version is for
12 - 24V AC/DC circuits, and includes
current limiting elements.
Diode version: Typically, an inductive load produces a
spike (neg.-going) when it is turned off.
These terminal blocks with built-in
clamping diode help protect your PLC’s
output circuits.
DINnectors Screwless Double-Level Terminal Blocks Overview 
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Why go screwless?
- Speed: On average, screwless connections
can be made in half the time as screw type
connections, cutting installation labor
costs in half.
- Ease: No need for twisting and turning
screws, so screwless terminal blocks are
much easier on the installer's hands and
arms. Also, wiring from the top of the
terminal blocks allow installers to accurately
and reliably see the wire fully
inserted into the spring clamp.
- Safety: Never have a problem with loose
connections from loose screws again!
Meets the same UL, CSA, and IEC
standards as screw-type terminal blocks.
- Reliability: Screwless terminal blocks
provide vibration-proof connections.
- Maintenance-free: The screwless springclamp
conforms to the wire with constant
tension, making it maintenance-free.
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Are there any trade-offs?
- Unless you need to clamp multiple wires to
the same connection point, the answer is
no. If you do, then there may be a slight
trade-off in requiring more panel space
than with screw terminal blocks.
- Unlike
screw terminal blocks, screwless terminal
block spring-clamps are designed to
clamp a single wire only.
- This is why
multiple versions exist like the "one-to-two"
or "two-to-two." These versions allow
multiple wires to be connected together via
multiple spring-clamps.
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For more details, select the "Products" tab and click on the desired "Item Code", or select the "Technical Info" tab.
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