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PCB Terminal Block Connector Side Entry 3.81mm Pitch

Replacement Compatibility Product Type: 3.81mm Pitch High-Density Fixed PCB Spring Terminal Block Reference Model: NT-235-3.81-XX Product Features ☑ Front-entry wire connection design allows wire insertion and spring operation from the same direction for easier installation. ☑ Built-in test port supports convenient electrical testing and maintenance without removing wires. ☑ Compact 3.81mm pitch design helps optimize […]

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Terminal Block

Spring Terminal Block CE Certified 3.5mm Pitch

Replacement Compatibility Product Type: 3.5mm Pitch Fixed PCB Spring Terminal Block Reference Model: NT-250-3.5-XX Product Features ☑ Compact 3.5mm pitch design suitable for signal and low-power PCB connections. ☑ Push-in spring clamp structure ensures secure and vibration-resistant wire termination. ☑ Side-entry connection design helps reduce overall PCB installation height. ☑ Suitable for wave soldering assembly […]

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Article Sep 23, 2026

What Is a Terminal Distribution Box? Types, Wiring, and How to Choose

A terminal distribution box is an electrical connection assembly that organizes incoming conductors and distributes one or more electrical potentials to multiple outgoing terminals. Depending on the product, it may be an enclosure containing terminal blocks, a compact DIN-rail distribution block, a fused power distribution module, or a breaker-equipped distribution box. The name alone does […]

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Article Oct 21, 2026

What Is the Difference Between a Control Module and a Relay Module?

A control module and relay module can look like similar purchases when both appear on a control-panel parts list. That similarity can lead to a costly mismatch: one product may process a signal, while another only switches a circuit.1 I start by asking what the system must decide, what output it already has, and what […]

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Article Oct 13, 2026

What Are Common Connector Types?

Connector types can look interchangeable in a catalog, but a familiar shape does not tell me whether two parts will mate or work in the same installation. A wrong choice can delay sampling or force a cable redesign. I find it more useful to identify the connection task first, then check the interface and installation […]

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Article Oct 10, 2026

What Are 5V Relay Modules Used For?

5V relay modules are used to let a low-voltage controller switch a separate electrical circuit, but many buyers misunderstand what the “5V” label actually means. I often see OEMs, PLC panel builders, and system integrators assume that a 5V module can only control a 5V load. A correct selection starts by separating the control side […]

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Article Sep 30, 2026

How to Connect Wire to Relay Module?

A relay module looks simple until a control cabinet fault appears after commissioning. One wrong assumption about COM, NO, NC, coil voltage, or load wiring can damage a PLC output or create intermittent machine stops.1 I usually start with the wiring logic first, then I match the exact module diagram. To connect wire to a […]

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Article Sep 30, 2026

What Does a Relay Module Look Like?

A relay module can look simple in a photo, but that simplicity often causes sourcing mistakes. I often see buyers identify only the blue relay body or terminal block, then later discover the coil voltage, contact type, or mounting style is wrong. The safer solution is to use appearance as the first clue, not the […]

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Article Sep 30, 2026

What Is a DC Power Distribution Module? Wiring, Protection, and Selection

A DC power distribution module accepts an existing DC supply and divides it into multiple output circuits through a compact terminal assembly. Depending on its design, it may also add switches, status LEDs, a common fuse, individual branch protection, or electronic circuit breakers. It distributes DC power; it does not normally convert AC to DC […]

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Article Sep 29, 2026

What Are the Different Types of PLC Modules?

If you've ever sent a supplier an inquiry for "PLC modules" and received a dozen clarifying questions back, you're not alone. The term covers everything from CPU cards to cabinet wiring blocks, and buying the wrong category doesn't just waste money — it stalls your entire system build. The term "PLC modules" actually describes two […]

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Terminal Block

5.0mm Pitch Pluggable PCB Terminal Block – Spring Clamp

The NITAI PL Series 5.0mm pitch pluggable PCB terminal block is designed for reliable wire-to-board connections in industrial control equipment and electronic systems. With a rated current of 20A and a rated voltage of 160V under overvoltage category III and pollution degree 2 conditions, this terminal block provides a practical solution for PCB-based electrical assemblies. […]

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Terminal Block

3.81mm Pitch Screw Connection Pluggable PCB Terminal Block

<p data-pm-slice="1 1 []">The NITAI PL Series 3.81mm pitch screw connection pluggable PCB terminal block is designed for wire-to-board connections in industrial control equipment, electronic devices, and automation systems.</p> Featuring an M2 screw connection with a slotted screwdriver drive, this terminal block provides mechanical clamping of conductors without requiring soldering at the wire termination point. […]

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Terminal Block

5.08mm Pitch Push-In Spring Pluggable PCB Terminal Block

The NITAI PL Series 5.08mm pitch pluggable PCB terminal block is designed for wire-to-board connections in industrial control equipment, automation systems, and electronic assemblies. Featuring a push-in spring connection, this terminal block allows convenient wire termination without conventional screw tightening. Its pluggable design enables connection and disconnection from a compatible PCB-mounted header during equipment assembly […]

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Terminal Block

3.81mm Pitch 8A Push-In Spring Pluggable PCB Terminal Block

<p data-pm-slice="1 1 []">The NITAI PL Series 3.81mm pitch pluggable PCB terminal block is designed for compact wire-to-board connections in industrial control equipment, electronic devices, and automation systems.</p> Featuring a push-in spring connection, this terminal block allows solid conductors to be inserted directly without screw tightening. Flexible conductors can also be connected using the appropriate […]

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