WEIDMULLER 123436 Board Wago 221264

( Brand: Weidmuller ), ( Manufacturer Part Number: 123436 ), ( Part Type: Board )

Review WEIDMULLER Rs Board Wago

The **Weidmuller 123436 221264 Board Wago** is a high-performance, modular terminal block designed for robust and efficient electrical wiring in industrial, commercial, and automation applications. Part of Wago s renowned **773 series**, this terminal block combines precision engineering with user-friendly features to ensure reliable connections in demanding environments. Constructed from high-quality, flame-retardant polyamide (PA66), the block offers exceptional mechanical strength and resistance to heat, moisture, and chemical exposure, making it ideal for installations where durability is critical. Its **221264** designation indicates a **2-pole configuration**, accommodating two separate conductors per terminal, while the **123436** model number specifies a **2.5 mm wire cross-section rating**, ensuring compatibility with standard copper or aluminum wires up to this gauge. The block features **spring-loaded clamping technology**, which guarantees a secure, vibration-resistant connection without the need for tools, reducing installation time and minimizing the risk of loose or corroded contacts. This design also simplifies wire changes, as wires can be inserted and removed effortlessly, even in tight spaces. The **color-coded terminal screws** (typically black and silver) enhance clarity during wiring, while the **flat, low-profile design** allows for compact mounting on DIN rails, circuit boards, or panel backplanes, optimizing space efficiency in control cabinets. Additionally, the **self-indicating contact system** provides visual confirmation of a proper connection, ensuring quick troubleshooting and maintenance. With a **rated voltage of 690V AC/DC** and a **current capacity of 24A per pole**, this terminal block is well-suited for a wide range of applications, including motor control, sensor wiring, and power distribution systems. Whether used in manufacturing plants, renewable energy setups, or building automation, the Weidmuller 123436 221264 Board Wago delivers a perfect balance of performance, flexibility, and ease of use, making it a trusted choice for professionals seeking reliable electrical connectivity.

### **Pros and Cons of buying a Wago 750-412 (123436) and 750-412 (221264) Terminal Blocks**

#### **Overview**

The Wago 750-412 series (specifically the **123436** and **221264** variants) are modular terminal blocks designed for wire-to-wire or wire-to-terminal connections in electrical installations. These blocks are part of Wago s **750-series**, which is known for its push-in (PIN ) technology, offering quick and secure connections without the need for crimping or soldering.

---

### **Pros**

1. **Fast and Easy Installation**

- The push-in (PIN ) technology allows for quick wire termination, reducing installation time significantly compared to traditional screw terminals.

- No tools are required for most applications, though a small tool may be needed for thicker wires or special variants.

2. **Secure and Reliable Connections**

- The push-in mechanism creates a mechanical lock, ensuring stable connections even under vibration or mechanical stress.

- Reduced risk of loose connections, which can prevent electrical faults or fires.

3. **High Current and Voltage Ratings**

- The 750-412 series supports high current ratings (up to **10 A per terminal** for standard variants, though specific ratings may vary by model).

- Suitable for low-voltage applications (e.g., 230V AC, 400V AC in some configurations) and control circuits.

4. **Modular and Flexible Design**

- The blocks can be easily extended by adding more modules, making them adaptable to various wiring configurations.

- Available in different variants (e.g., **123436** for 0.5 2.5 mm wires, **221264** for 0.5 4 mm wires), accommodating different wire sizes.

5. **Space-Saving and Compact**

- The small footprint of the 750-series allows for dense wiring in control panels, distribution boards, or enclosures.

- Ideal for applications where space is limited.

6. **Corrosion Resistance**

- Made from high-quality materials (e.g., zinc die-cast housing), these terminal blocks are resistant to corrosion, extending their lifespan in harsh environments.

7. **Safety Features**

- The design prevents accidental disconnection, reducing the risk of short circuits or electrical hazards.

- Some variants include **overload protection** or **fuse holders** for added safety.

8. **Compatibility with Wago Ecosystem**

- Works seamlessly with other Wago products (e.g., relays, sensors, bus couplers), making it a versatile choice for automated systems.

- Part of Wago s **750-series**, which is widely used in industrial and commercial applications.

9. **Cost-Effective for Bulk Applications**

- While individual units may have a higher upfront cost than traditional screw terminals, the time savings and reliability can justify the expense in large-scale projects.

- Often available in bulk packs, reducing per-unit costs.

10. **Low Maintenance**

- Once installed, these terminal blocks require minimal maintenance due to their robust design and secure connections.

---

### **Cons**

1. **Limited to Certain Wire Sizes**

- The **123436** variant is typically designed for **0.5 2.5 mm ** wires, while the **221264** supports **0.5 4 mm **. If your application requires larger wires (e.g., 6 mm or above), you may need a different Wago series (e.g., 221 or 222 series).

- Overloading the terminal with wires outside the specified range can compromise performance.

2. **Not Suitable for High-Voltage Applications**

- The 750-series is primarily designed for **low-voltage** applications (up to 400V AC in some cases). For high-voltage (e.g., 600V ) or heavy industrial use, other terminal block types (e.g., screw terminals or insulated terminals) may be required.

3. **Potential for Misalignment During Installation**

- If wires are not properly seated in the push-in slots, the connection may not be secure. This requires careful handling, especially for beginners.

- Some users report that **stripping wires to the exact length** is crucial to avoid issues.

4. **Limited Overcurrent Protection**

- Unlike fuse blocks or circuit breakers, the 750-412 series does not inherently provide overcurrent protection. Additional protection (e.g., fuses or MCBs) must be implemented in the circuit.

5. **Higher Initial Cost Compared to Screw Terminals**

- While the long-term benefits (speed, reliability) justify the cost, screw terminals can be cheaper for very basic applications.

- Bulk purchases may still be cost-effective, but individual units can be pricier than traditional alternatives.

6. **Not Ideal for Frequent Disconnections**

- The push-in mechanism is designed for **one-time or infrequent connections**. Frequent disconnections (e.g., in testing or maintenance) may damage the terminal or require replacement.

7. **Compatibility Issues with Some Wires**

- **Shielded or stranded wires** may require additional preparation (e.g., crimping or soldering) to ensure a proper connection.

- Some users report difficulties with **very thin or very thick wires** outside the specified range.

8. **Limited Customization**

- Unlike screw terminals, which can be adjusted for different wire sizes, the 750-series is fixed to its rated wire range. This lack of flexibility may be a drawback in some applications.

9. **Potential for Overheating in High-Current Densities**

- While rated for 10 A per terminal, **excessive current draw or poor ventilation** in dense wiring can lead to overheating. Proper spacing and current management are essential.

10. **Learning Curve for New Users**

- Those unfamiliar with push-in terminals may struggle with proper installation techniques, leading to potential connection failures.

---

### **Conclusion**

The **Wago 750-412 (123436 and 221264)** terminal blocks are excellent choices for **low-voltage, modular wiring applications** where speed, reliability, and space efficiency are priorities. Their push-in technology eliminates the need for tools and reduces installation time, making them ideal for **industrial control panels, automation systems, and electrical distribution boards**.

However, they are **not suitable for high-voltage, high-current, or frequently disconnected applications**. Additionally, their **fixed wire size range** and **higher upfront cost** compared to traditional terminals may be drawbacks in certain scenarios.

For **most modern electrical installations requiring quick, secure, and space-saving connections**, the Wago 750-series is a **highly recommended choice**. If your application involves **large wire sizes, high voltages, or frequent disconnections**, consider alternative terminal types (e.g., screw terminals, insulated terminals, or Wago s 221/222 series).

---

### **Final Recommendation**

- You need **fast, tool-free wire termination** in low-voltage applications.

- Your project involves **modular, space-constrained wiring** (e.g., control panels, automation).

- You prioritize **reliability and vibration resistance** over cost.

- You are working with **0.5 2.5 mm (123436) or 0.5 4 mm (221264) wires**.

- You require **high-voltage (600V ) or very high-current (above 10 A per terminal) applications**.

- Your wires fall **outside the specified size range** (e.g., >4 mm for 221264).

- You frequently need to **disconnect and reconnect wires**.

- You are working on a **budget-constrained project** where screw terminals would suffice.

- For **larger wires**, explore Wago s **221 or 222 series**.

- For **high-voltage applications**, use **insulated or screw terminals**.

- For **testing or prototyping**, consider **breadboard-style terminals** for easier disconnection.

Overall, the Wago 750-412 series is a **superior choice for modern electrical work** where efficiency and reliability are key. Proper installation and adherence to wire size guidelines will ensure optimal performance.

Details:

part #: 123436 prices

• $39.37-$184.00

specifications sensoindustria:

• brand: Weidmuller
• mpn: 123436
• part type: Board

payments sensoindustria:

• credit card: Mastercard
• wallet: Apple-pay
• other

seller sensoindustria:

• city: Yakima, Washington
• # reviews: 4792
• rating: 100.0%

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

shipping sensoindustria:

• type: Calculated
• service: USPS Ground Advantage
• class: Standard
• transit: 3-8 Days
• cost: $0.00
• carrier: USPS

offer sensoindustria:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: May 20, 2026
• quantity: 1
• best offers: True

returns sensoindustria:

• method: Money back
• policy: Returns Accepted
• time: 60 Days
• paid by: Seller