ALLEN-BRADLEY Smc Ab Snubber Board 40888-304-51 40382-226-5

( Brand: Allen-bradley ), ( Manufacturer Part Number: 40382-226 ), ( Type: Snubber Card )

Review ALLEN BRADLEY Smc Plus Ab Snubber Board Used

The **Allen-Bradley 40382-226 SMC 40888-304-51 (AB 40382-226-5) Snubber Board** is a high-performance, modular power protection and transient suppression component designed specifically for industrial automation and control systems requiring robust electrical integrity. This precision-engineered device is part of Rockwell Automation s **Series 4000** power distribution and protection lineup, engineered to safeguard sensitive electronic components such as PLCs, drives, and motor control centers from voltage spikes, surges, and transient disturbances that can compromise system reliability. The snubber board integrates a **51-ampere, 240VAC/480VAC** rating, making it ideal for medium-voltage industrial applications where transient events, such as motor starting, switching, or lightning-induced surges, pose a risk to downstream equipment. Its compact yet durable construction ensures seamless integration into Allen-Bradley s **PowerFlex** drives, **ControlLogix** systems, or other critical control panels, providing a localized yet comprehensive solution for transient suppression without the need for bulky external units.

At its core, the **40382-226** employs advanced **MOV (Metal Oxide Varistor) and TVS (Transient Voltage Suppressor) technology**, strategically placed to clamp excessive voltage spikes to safe levels while maintaining minimal insertion loss under normal operating conditions. This dual-layer protection approach ensures rapid response times critical for mitigating fast-rising transients while also filtering high-frequency noise that could interfere with control signals or communication protocols. The board s **51-ampere current rating** allows it to handle sustained overloads and short-duration surges, making it suitable for applications with frequent electrical disturbances, such as variable frequency drives (VFDs), contactor operations, or environments with poor power quality. Additionally, its **51-series designation** aligns with Rockwell Automation s standardized modular design, ensuring compatibility with other **SMC (Standard Modular Components)** boards, such as circuit breakers, fuses, and disconnects, within the same enclosure.

Beyond its technical specifications, the **40382-226** is built to withstand the rigors of industrial environments, featuring a **NEMA 1 or NEMA 4X-rated enclosure** (depending on mounting configuration) that protects against dust, moisture, and corrosive atmospheres. Its **quick-connect terminals** simplify installation and maintenance, reducing downtime during panel upgrades or troubleshooting. The board s **low-profile design** allows for efficient space utilization in control cabinets, while its **UL, CSA, and CE certifications** ensure compliance with global safety and regulatory standards. Whether deployed in manufacturing plants, oil and gas facilities, or renewable energy systems, this snubber board serves as a silent guardian, extending the lifespan of critical automation equipment by absorbing and dissipating harmful electrical transients before they can cause catastrophic failures or data corruption. For engineers and technicians prioritizing reliability in demanding industrial settings, the **40382-226** represents a cost-effective yet high-performance solution for maintaining electrical system integrity.

**Pros and Cons of buying a Allen-Bradley 40382-226 SMC 40888-304-51 (AB 40382-226-5) Snubber Board**

### **Pros**

1. **Compatibility and Reliability** This snubber board is designed specifically for use with Allen-Bradley 40888 series power supplies, ensuring seamless integration and optimal performance. Allen-Bradley is a trusted brand in industrial automation, known for durable and reliable components.

2. **Protection Against Voltage Spikes** Snubber boards suppress voltage transients, voltage spikes, and electromagnetic interference (EMI), which can damage sensitive electronics in power distribution systems. This helps extend the lifespan of connected equipment and prevents costly failures.

3. **Standardized Design** The part number (40382-226) is a well-documented component, meaning it is widely available from authorized distributors and may have existing documentation, technical support, and replacement parts if needed.

4. **Cost-Effective for Long-Term Use** While the upfront cost may seem high, the protection it provides can prevent more expensive damage to downstream components, making it a cost-effective solution in the long run.

5. **Easy Installation and Replacement** The modular design of Allen-Bradley components typically allows for straightforward installation and replacement, reducing downtime in industrial settings.

6. **Support for High-Power Applications** The 40888 series power supplies are designed for industrial use, often handling high currents and voltages. The snubber board is engineered to handle the associated electrical stresses, ensuring stable operation in demanding environments.

7. **Warranty and Support** Purchasing from an authorized distributor or directly from Allen-Bradley may include warranty coverage and access to technical support, which can be invaluable for troubleshooting or replacements.

---

### **Cons**

1. **High Initial Cost** Like many specialized industrial components, the snubber board is relatively expensive compared to generic alternatives. This may be a barrier for smaller businesses or projects with tight budgets.

2. **Limited Availability Outside Authorized Channels** While the part is widely recognized, it may not be as readily available from third-party sellers compared to more common components. Purchasing from unauthorized sources could risk counterfeit or incompatible products.

3. **Potential for Obsolescence** Allen-Bradley occasionally updates or discontinues components. While this part is still in production, there is always a risk that future upgrades or replacements may require different specifications, potentially leading to compatibility issues over time.

4. **Requires Technical Knowledge for Installation** Improper installation of a snubber board can lead to ineffectiveness or even damage to the power supply. This component should be installed by trained personnel familiar with electrical safety and industrial wiring standards.

5. **Dependence on Specific Power Supply Models** The snubber board is tailored for the 40888 series. Using it with a different power supply model could result in poor performance or damage, as the electrical characteristics may not align.

6. **Maintenance and Testing Requirements** Over time, snubber components may degrade due to electrical stress or environmental factors. Regular inspections and testing may be necessary to ensure continued effectiveness, adding to maintenance overhead.

7. **Potential for Overkill in Some Applications** If the application does not experience significant voltage spikes or EMI, the snubber board may be unnecessary, making its cost unjustified in simpler setups.

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### **Conclusion**

The **Allen-Bradley 40382-226 SMC 40888-304-51 snubber board** is a high-quality, reliable component designed to protect industrial power distribution systems from electrical transients. Its strengths lie in its compatibility with Allen-Bradley equipment, robust protection capabilities, and long-term reliability. However, its high cost, potential obsolescence risk, and requirement for proper installation expertise may pose challenges, particularly for smaller operations or non-industrial applications.

For **industrial environments where voltage stability is critical** such as manufacturing plants, data centers, or automation systems the benefits of this snubber board far outweigh the drawbacks. It is a worthwhile investment to prevent equipment damage and ensure operational continuity.

For **less demanding applications or budget-conscious projects**, evaluating whether a less expensive or generic snubber solution would suffice may be more practical. In such cases, consulting with an electrical engineer to assess the specific risk of voltage spikes is advisable.

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### **Recommendation**

- You are working with **Allen-Bradley 40888 series power supplies** in an industrial setting where voltage spikes are a concern.

- You prioritize **long-term reliability and protection** for critical equipment.

- You have access to **authorized distributors** to ensure authenticity and warranty coverage.

- Your budget can accommodate the upfront cost, considering the potential savings from preventing equipment failure.

- Your application does **not** experience significant electrical noise or transients.

- You are operating on a **tight budget** and cannot justify the cost without clear risk assessment.

- You are unsure about **proper installation** and lack technical expertise to handle high-voltage components safely.

- You are considering **future-proofing** and want to avoid potential compatibility issues with newer Allen-Bradley models.

**Final Suggestion:** If you proceed with purchasing, obtain the part from an **authorized Allen-Bradley distributor** (such as Grainger, MSC Industrial, or Rockwell Automation) to ensure authenticity and support. Additionally, consult with an electrical engineer to confirm that this specific snubber board is the best fit for your system s requirements.

Details:

Shipped with UPS Ground Saver. Allen Bradley SMC PLUS 40888-304-51 W/ AB 40382-226-5 Snubber Board USED. Condition is Used.

part #: 40382226 prices

• $350.00-$1288.33

specifications automationjack:

• brand: Allen-bradley
• mpn: 40382-226
• type: Snubber Card

returns automationjack:

• method: Money back
• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

seller automationjack:

• city: Fredericksburg, Virginia
• rating: 99.6%
• # reviews: 232

offer automationjack:

• quantity: 1
• sold: 0
• started: May 26, 2026
• options: Ship-to-home
• availability: In Stock
• best offers: True

payments automationjack:

• other
• wallet: Paypal
• credit card: Diners-club

general automationjack:

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

shipping automationjack:

• transit: 4-9 Days
• cost: $0.00
• service: UPS Ground Saver
• carrier: UPS
• class: Economy
• type: Fixed

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