ALLEN-BRADLEY 100-NX207 Contactor Repair Parts/repair

( Brand: Allen-bradley ), ( Manufacturer Part Number: 100-NX207 ), ( Model: 100 NX207 ), ( Type: Definite Purpose Contactor ), ( Country Of Origin: United States )

Review ALLEN BRADLEY Series Contactor Parts/repair

The **Allen-Bradley 100-NX207** is a robust and versatile **general-purpose contactor** designed for reliable control of electric motors, heaters, and other inductive loads in industrial, commercial, and automation applications. Part of the **100-NX series**, this contactor is engineered to deliver consistent performance in demanding environments, featuring a compact yet durable construction that ensures long-term reliability. Its **normally open (NO) main contacts**, rated for **20 amps at 240 volts AC**, make it well-suited for controlling standard three-phase or single-phase motors up to approximately **1.5 horsepower** (depending on voltage and duty cycle), as well as resistive or low-inductive loads. The contactor incorporates **silver-cadmium oxide contact material**, which provides excellent resistance to welding and arcing, reducing wear and extending the life of the contacts even under frequent switching conditions.

The **100-NX207** is built with a **magnetic coil mechanism** that ensures clean, positive contact engagement and disconnection, minimizing mechanical stress on the contacts. The coil is designed for **24-240 VAC or 24-240 VDC operation**, offering flexibility in control circuit integration, whether powered by standard industrial voltages or low-voltage control systems. The contactor s **compact footprint** and **standardized mounting holes** (compatible with DIN rail or panel-mounting) make it easy to integrate into existing control panels, reducing installation time and space requirements. Additionally, its **low power consumption** during operation ensures efficient energy use, while the **thermal overload protection** (when paired with compatible relays or overload units) helps prevent motor damage from overheating.

Ideal for **repair and replacement applications**, the **100-NX207** is a direct drop-in solution for maintaining legacy systems or upgrading older contactors in PLC-based or hardwired control schemes. Its **universal compatibility** with Allen-Bradley s broader line of relays, timers, and control components further simplifies system integration. Whether used in **HVAC systems, conveyor belts, pumps, or machinery automation**, this contactor delivers dependable performance with minimal maintenance, making it a cost-effective choice for both original equipment manufacturers (OEMs) and maintenance technicians. For optimal functionality, it is recommended to pair it with the appropriate **overload relay** (such as the **100-NX208**) and ensure proper wiring per **NFPA 79** or **IEC standards** to guarantee safe and efficient operation.

### **Pros and Cons of Buying an Allen-Bradley 100-NX207 Contactor for Parts/Repair**

1. **Compatibility and Reliability** The 100-NX207 is a well-documented, widely used contactor in industrial automation, meaning parts and technical support are readily available. Its design aligns with common control panel standards, reducing integration challenges.

2. **Durability and Performance** Built for harsh industrial environments, this contactor is designed for frequent switching cycles and high-current applications. If the original unit is failing due to wear rather than damage, replacing only the critical components (e.g., contacts, coil, or arc chutes) can extend its lifespan cost-effectively.

3. **Cost-Effective Repair** Purchasing the contactor for parts rather than a full replacement can save money, especially if the housing, mounting, or wiring is still intact. Common replaceable parts include:

- Contacts (silver or copper alloy)

- Coil (if burned out)

- Arc chutes or snubbers (if degraded)

- Auxiliary relays or status indicators (if integrated)

4. **Ease of Sourcing** Allen-Bradley (now part of Rockwell Automation) has a robust supply chain, and the 100-NX207 is a legacy model with parts available through distributors like Grainger, MSC, or specialized automation suppliers. Ebay, Alibaba, or industrial surplus markets may also offer used or refurbished units at lower costs.

5. **Technical Documentation** Full schematics, wiring diagrams, and maintenance guides are publicly available, making repairs easier for technicians with experience in PLC or motor control systems.

6. **Backward Compatibility** If the contactor is part of a larger system (e.g., paired with a PLC or motor starter), replacing it with a compatible model ensures seamless operation without requiring system-wide modifications.

---

- **Limited new production**: Rockwell Automation may no longer manufacture new units, relying on inventory or third-party suppliers.

- **Potential for counterfeit parts**: Used or refurbished units from untrusted sources may have compromised quality or lack proper testing.

- **Software/firmware dependencies**: If the contactor integrates with older PLCs or control systems, compatibility issues could arise with newer software updates.

- **Increased downtime**: If the unit is failing intermittently, repeated repairs may be less efficient than upgrading to a modern replacement.

- **Difficulty finding skilled labor**: Fewer technicians are familiar with legacy systems, increasing repair time and costs.

- **Risk of failure**: Worn-out internal components (e.g., insulation, springs) may not be repairable, leading to a complete failure despite partial restoration.

- **Arc flash protection**: Modern contactors often include improved arc suppression or enclosures.

- **Environmental sealing**: If the unit is exposed to dust, moisture, or chemicals, a newer model with better sealing may be necessary.

- **EMC compliance**: Electrical noise from older units could interfere with modern sensors or communication protocols.

4. **Limited Warranty or Support** Used or refurbished units typically come with no warranty, and technical support for legacy products may be minimal or require additional fees.

- **Higher efficiency**: Lower energy loss and improved thermal management.

- **Smart features**: Built-in diagnostics, remote monitoring, or integration with IoT platforms.

- **Longer lifespan**: Reduced maintenance and lower total cost of ownership over time.

---

### **Conclusion**

- The unit is structurally sound but failing due to wear (e.g., contacts, coil, or arc chutes).

- You have access to reliable parts and technical expertise.

- The system s overall lifespan aligns with the contactor s remaining utility.

- Downtime and repair costs are justified by the immediate need.

However, if the contactor is **frequently failing, difficult to repair, or part of an aging system**, upgrading to a modern replacement may be more **cost-effective and future-proof**. Modern contactors reduce maintenance burdens, improve safety, and offer better integration with current automation technologies.

---

### **Recommendation**

- If the housing, wiring, and mounting are intact but only the coil/contacts are faulty, **repairing with a new 100-NX207 or compatible parts** is reasonable.

- If the unit has **multiple recurring failures** (e.g., insulation breakdown, mechanical wear), **evaluate upgrading** to a newer model.

- Purchase from **authorized distributors** (e.g., Rockwell Automation, Grainger) or reputable industrial suppliers to avoid counterfeit or damaged parts.

- Consider **refurbished units** from trusted sources if the entire contactor is needed, but verify testing and warranty coverage.

- Calculate the **lifetime repair costs** vs. the **upfront and long-term savings** of a new contactor.

- Factor in **downtime risks**, **labor costs**, and **potential system upgrades** required for a legacy unit.

- The system is part of a **modern PLC or SCADA network** where compatibility with newer devices is critical.

- You are **expanding capacity** and need higher current ratings or advanced features.

- **Maintenance complexity** is increasing due to the unit s age.

- The system is **short-term** or **low-priority**, and the contactor s failure does not critically impact operations.

- You have **in-house expertise** to diagnose and repair the unit efficiently.

- The **cost of a new contactor exceeds the value** of the system it serves.

For **short-term or low-risk applications**, repairing or sourcing a 100-NX207 for parts is a pragmatic choice. For **long-term reliability, safety, and efficiency**, upgrading to a modern contactor is the better investment. Always weigh the immediate savings against the hidden costs of obsolescence and downtime.

Details:

Condition of internal components is UNKNOWN. Sale Includes: Allen Bradley 100-NX207 Series C Contactor, For Parts/Repair. Only items shown in pictures are included. Item has not been opened or disassembled.

Cosmetic condition: This item is in good condition cosmetically. Functionality is UNKNOWN. Sorry, no other parts, wiring or accessories included. There are some minor scratches, scuffs, and/or blemishes on the item.

Shipping Method: USPS. It has not been tested. Please see pictures for more detail. Function: This item is for PARTS/ REPAIR.

part #: 100nx207 prices

• $164.99-$365.00

specifications sensoindustria:

• brand: Allen-bradley
• mpn: 100-nx207
• model: 100 Nx207
• type: Definite Purpose Contactor
• country of origin: United States

seller sensoindustria:

• city: Houston, Texas
• rating: 99.5%
• # reviews: 6224

shipping sensoindustria:

• type: Calculated
• transit: 4-10 Days
• carrier: USPS
• class: Expedited
• cost: $16.80
• service: USPS Priority Mail

payments sensoindustria:

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

general sensoindustria:

• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
• condition: For parts or not working

returns sensoindustria:

• policy: No Returns

offer sensoindustria:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• best offers: True
• sold: 0
• started: February 3, 2026

Allen-bradley 100-NX207 Is Similar To:

• 17560a16 17560a16 Allen-bradley Allen Bradley Series (37.7% similar) Allen bradley cat 17560A16 series a nib...(January 18th, 2018)
• 04eky00001 Allen Bradley Part Flat Power Unused Old Stock (28.6% similar) System ships via USPS and FedEx ground express. Buyer has option to select alternate transport carrier Ats expense. Allen bradley part: flat power cable. Fob phoenix...(May 7th, 2018)
• 061259830213 Allen-bradley 2015 Factory Sealed (45.2% similar) Thanks a buyer: member id clobbers private during past month Cisco WS-C3750X-48PF-S brand new sealed 3750X Poe us 2,400. Honest and stood by the product working. 00BEST offer price was accepted view item Allen-bradley 1756-EN2F EN2F b series new sealed arrived as described. E-mail us first if you ...(July 21st, 2017)
• 081159752880 Allen Bradley 1771-oa 120 (33.6% similar) This item is used. Allen bradley 1771-OA 120 vac output module 1771OA 1771 manufacturer: bradley model: 1771-OATYPE: module controller platform: plc 5 used, in working condition...(January 22nd, 2018)
• 100-a09nd3 b B Rockwell Automation Allen-bradley (22% similar) Auxiliary contact, 110 120V ac 50 60HZ coil, fully tested, in excellent working and cosmetic condition. Notes:the unit is series condition: pup used in a plc hardware. The serial number in pictures has been altered for privacy purposes...(May 5th, 2017)
• 100-c09 10 Allen Bradley Series Contactor (50.9% similar) Allen bradley 100-C09 10 series a contactor location 14E...(August 23rd, 2018)
• 100-c23d 10 Allen-bradley Allen Bradley (37% similar) Previously used, in very good working condition allen bradley 100-C23D 10 contactor coil 32A 600V-690V...(May 5th, 2017)
• 10000134269 Allen Bradley 1756-rio Series (40% similar) Comes with wiring connector. Working when pulled. Appears new, not in original box...(November 13th, 2017)
• 100s-c09ej14bc Allen Bradley New Contactor (41.4% similar) A contactor 24VDC part 100S-C09EJ14BC great price pic. New allen bradley ser...(June 1st, 2018)
• 1025732 Allen-braldye Allen-bradley Memory Module (33.9% similar) Allen-bradley memory module cat 1772MEB part this unit appears to be new and in the original box, but I cannot verify...(July 5th, 2017)
• 104-a09nd3 Allen Bradley Reversing Contactor (44.2% similar) Reversing contactor, includes the interlocking end switches to protect from inadvertently shorting power supply...(July 18th, 2018)