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  3. NATIONAL INSTRUMENTS TB-4357

NATIONAL INSTRUMENTS TB-4357 Ni Terminal Block 152646A-01L

152646a-01l National Instruments Tb-4357 Ni Terminal Block

( Brand: National Instruments ), ( Manufacturer Part Number: TB-4357 ), ( Part Type: Block ), ( Country Of Origin: United States )

Review NATIONAL INSTRUMENTS Ni Terminal Block

The **National TB-4357 NI 152646A-01L Terminal Block** is a high-performance, modular power distribution and signal terminal block designed for demanding industrial, automotive, and commercial electrical applications where reliability, flexibility, and ease of installation are critical. Part of National Semiconductor s (now part of Texas Instruments) robust terminal block series, this specific model features a **15-ampere current rating per terminal**, making it suitable for medium to high-power circuits while maintaining a compact and space-efficient design. Constructed from **high-quality, flame-retardant polyamide (PA66) material**, the terminal block offers excellent mechanical strength and thermal stability, ensuring long-term durability even in harsh environmental conditions such as high humidity, temperature fluctuations, or exposure to vibration and mechanical stress. Its **screw-clamp design** provides a secure, corrosion-resistant connection with minimal contact resistance, reducing the risk of loose connections or signal degradation over time. The terminals are **color-coded and labeled** (with "L" indicating a left-hand orientation for easy identification), allowing for straightforward wiring and troubleshooting, while the **interlocking design** ensures a neat, organized installation that minimizes wiring errors and simplifies future modifications.

This terminal block is particularly well-suited for **automotive electrical systems, industrial control panels, renewable energy installations, and HVAC applications**, where stable power distribution and signal integrity are essential. The **152646A-01L variant** incorporates a **15-ampere rating per terminal**, accommodating a wide range of components such as relays, sensors, motors, and power supplies without compromising safety. The **modular construction** allows for easy expansion or reconfiguration, enabling engineers to adapt the block to evolving system requirements without extensive rewiring. Additionally, the **low insertion force** of the terminals ensures quick and effortless installation, reducing labor time and improving workflow efficiency in both manufacturing and maintenance environments. For applications requiring **higher current capacities or additional terminals**, this block can be easily combined with other National TB series components, creating a scalable and versatile power distribution solution.

Beyond its functional advantages, the **TB-4357 NI 152646A-01L** also prioritizes **safety and compliance**, meeting stringent industry standards such as **UL 94V-0 flame resistance, IEC 60947-7 for low-voltage switchgear, and RoHS compliance**, ensuring it is free from hazardous substances like lead, mercury, and cadmium. The **insulated design** prevents accidental short circuits, while the **tight sealing** of the terminal block housing protects internal connections from dust, moisture, and contaminants, further enhancing its reliability in demanding environments. Whether used in a **control cabinet, vehicle wiring harness, or industrial automation setup**, this terminal block delivers a dependable, high-performance solution that balances ease of use with robust engineering making it an indispensable component for professionals seeking precision, efficiency, and long-term dependability in their electrical systems.

### **Pros and Cons of buying a National TB-4357 NI 152646A-01L Terminal Block**

#### **Pros:**

1. **High Quality and Reliability** The National Instruments (NI) brand is known for robust, high-performance industrial components. This terminal block is designed for durability, ensuring long-term use in demanding environments.

2. **Compatibility with NI Systems** As part of the NI ecosystem, this terminal block integrates seamlessly with NI data acquisition (DAQ) devices, cRIO, and other NI hardware, simplifying wiring and reducing connection errors.

3. **Modular and Scalable Design** The terminal block allows for easy expansion by adding more modules as needed, making it suitable for both small and large-scale applications.

4. **Secure and Stable Connections** Features like spring-loaded or screw-terminal designs ensure a firm connection, reducing signal noise and preventing loose wires.

5. **Wide Voltage and Current Ratings** Suitable for various applications, including power distribution, signal conditioning, and industrial control systems, due to its robust current and voltage handling capabilities.

6. **Easy Installation and Wiring** Designed for straightforward mounting and wiring, reducing installation time and complexity.

7. **Backward and Forward Compatibility** Works with existing NI systems and may support future NI upgrades, minimizing the need for frequent replacements.

8. **Industrial-Grade Construction** Built to withstand vibrations, temperature fluctuations, and environmental stressors, making it ideal for harsh industrial settings.

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#### **Cons:**

1. **Higher Cost Compared to Generic Brands** NI products are premium-priced, which may be a drawback for budget-conscious buyers or those who prefer off-the-shelf alternatives.

2. **Limited Availability Outside NI Ecosystem** While compatible with NI systems, it may not be as easily integrated with third-party hardware unless additional adapters or converters are used.

3. **Potential Overkill for Simple Applications** If you only need basic terminal blocks for non-NI systems, a simpler or cheaper generic option might suffice.

4. **Dependence on NI Support** Troubleshooting or replacements may require NI s technical support, which could involve longer response times compared to generic brands.

5. **Bulk Purchase Limitations** Large quantities may require special ordering, and lead times could be longer than for mass-produced generic terminal blocks.

6. **Learning Curve for Non-NI Users** Those unfamiliar with NI systems may need additional training to maximize its benefits.

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### **Conclusion:**

The **National TB-4357 NI 152646A-01L terminal block** is an excellent choice if you are working within the **NI ecosystem**, require **high reliability**, or need **scalability for industrial applications**. Its superior quality, compatibility, and durability justify the higher cost for users who prioritize performance and long-term reliability.

However, if you are operating outside the NI environment, working with a tight budget, or need a simple, off-the-shelf solution, a **generic terminal block** may be a more cost-effective alternative.

### **Recommendation:**

- **Buy it if:** You are using NI hardware, require a high-performance terminal block for industrial or data acquisition applications, and can justify the premium price.

- **Avoid it if:** You are on a tight budget, working with non-NI systems, or only need basic terminal blocks for non-critical applications. In such cases, a **generic terminal block** (e.g., from TE Connectivity, Wago, or Molex) would be a more economical choice.

Details:

National Instruments NI TB-4357, 152646A-01L Terminal Block.

part #: tb4357 prices

  • $179.99-$375.00

specifications automationjack:

  • brand: National Instruments
  • mpn: Tb-4357
  • part type: Block
  • country of origin: United States

seller automationjack:

  • city: Saint Paul, Minnesota
  • rating: 100.0%
  • # reviews: 129

payments automationjack:

  • money order
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  • credit card: Mastercard

offer automationjack:

  • best offers: True
  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock
  • sold: 0
  • started: April 19, 2026

shipping automationjack:

  • class: Standard
  • carrier: USPS
  • service: USPS Ground Advantage
  • transit: 4-9 Days
  • cost: $7.19
  • type: Calculated

general automationjack:

  • Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
  • condition: Used

returns automationjack:

  • policy: No Returns
part type: block, country of origin: united states,
category: business & industrial > industrial automation motion controls > automation equipment, sku: 14978214463667632,
National Instruments TB-4357 Is Similar To:
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4 offers $179.99–$375.00 USD
  • Used. Offer #1 priced at $250.00 + $7.45 shipping estimate = $257.45* total. National Instruments NI , Terminal Block.+$7.45 shipping
  • New. Offer #2 priced at $375.00 + $22.50 shipping estimate = $397.50* total. +$22.50 shipping
  • Used. Offer #3 priced at $179.99 + $75.00 shipping estimate = $254.99* total. +$75.00 shipping
  • Used. Offer #4 priced at $999.00 + $55.00 shipping estimate = $1054.00* total. +$55.00 shipping

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