CRYDOM H12WD4890G Sensata

( Brand: Crydom ), ( Manufacturer Part Number: H12WD4890G )

Review CRYDOM Sensata Technologies Used

The **Crydom H12WD4890G Sensata** is a high-performance, industrial-grade wireless door and gate controller designed for security, automation, and remote access applications in commercial, institutional, and municipal settings. Engineered with advanced wireless communication technology, this device leverages the **Sensata Technologies** brand s reputation for reliability and precision, ensuring seamless integration into modern security systems. The H12WD4890G operates within the **2.4 GHz ISM band**, delivering robust, interference-resistant connectivity over extended ranges up to **1,000 feet (300 meters)** in optimal conditions while supporting multiple communication protocols, including **RF4CE (Remote Feature Control Everywhere)** and **RF4CE **, for enhanced compatibility with a wide array of access control, lighting, and surveillance systems. Its **dual-band wireless capability** allows for flexible deployment, accommodating both **2.4 GHz and proprietary RF frequencies**, which minimizes signal congestion in crowded environments.

Built to withstand harsh operational conditions, the H12WD4890G is constructed with a **durable, weather-resistant enclosure**, rated for **IP67 protection**, making it suitable for outdoor installations in varying climates, from extreme heat to freezing temperatures. The device features a **high-current relay output (up to 10 amps at 250V AC)**, capable of driving a variety of actuators, including electric strikes, maglocks, turnstiles, and gate operators, with precise control over timing, sequencing, and fail-safe operations. Its **low-power consumption** ensures efficient operation, extending battery life in remote or off-grid applications, while its **LED status indicators** provide real-time feedback on connectivity, power status, and operational modes for quick diagnostics.

The H12WD4890G is engineered for **scalability and integration**, supporting **up to 16 wireless devices per controller** and seamless pairing with **Crydom s AccessPro, AccessPro Plus, and other enterprise-grade access control systems**. Its **configurable settings** allow for customization of communication protocols, encryption (including **128-bit AES**), and authentication methods, ensuring robust security against unauthorized access or signal hijacking. Additionally, the controller s **built-in logging and event reporting** capabilities enable administrators to monitor usage patterns, detect anomalies, and generate detailed audit trails for compliance and security audits. Whether deployed in high-security facilities, smart city infrastructure, or large-scale parking systems, the H12WD4890G delivers a blend of **reliability, flexibility, and advanced functionality**, making it an indispensable component for modern wireless access control solutions.

### **Pros and Cons of buying a Crydom H12WD4890G (Sensata) Relay**

1. **High Current and Voltage Rating** The H12WD4890G is a heavy-duty relay capable of handling **12 amps at 250V AC** (or 10 amps at 30V DC), making it suitable for industrial, automotive, and high-power applications where standard relays would fail.

2. **Sensata Brand Reliability** Sensata Technologies is a well-established manufacturer known for producing high-quality electrical components, including relays, switches, and sensors. Their products are widely used in automotive, aerospace, and industrial sectors, ensuring durability and performance.

3. **Low Contact Resistance** The relay features **silver-plated contacts**, which reduce resistance and prevent corrosion, improving longevity and efficiency in switching applications.

4. **Fast Switching Speed** The mechanical design allows for quick actuation, making it ideal for applications requiring rapid on/off cycles, such as motor control, solenoid activation, or high-frequency switching.

5. **Wide Operating Temperature Range** It operates effectively between **-40 C and 125 C**, making it suitable for extreme environments, including automotive under-hood applications and industrial machinery.

6. **NO/NC and Common Configurations** The relay offers both **Normally Open (NO)** and **Normally Closed (NC)** contacts, along with a common terminal, providing flexibility in circuit design.

7. **Rugged Construction** The housing is designed to withstand mechanical stress, vibration, and environmental factors, ensuring long-term reliability in demanding applications.

8. **Compatibility with PLCs and Control Systems** Due to its standard form factor and electrical characteristics, it integrates seamlessly with **PLCs, microcontrollers, and relay control boards**, making it a versatile choice for automation systems.

9. **Low Power Consumption** The coil typically draws **only a few watts (e.g., 3-5W at 12V)**, making it energy-efficient for battery-powered or low-power control systems.

10. **Aftermarket Availability** As a widely used relay, spare parts and replacements are readily available, reducing downtime in maintenance scenarios.

---

1. **Higher Cost Compared to Standard Relays** Due to its high current and voltage ratings, as well as the Sensata brand reputation, this relay is **more expensive** than generic or lower-rated alternatives (e.g., Omron, TE Connectivity, or no-name brands).

2. **Bulkier and Less Compact** The physical size of the H12WD4890G is larger than smaller relays (e.g., 5A or 10A models), which may limit installation space in tight applications.

3. **Potential for Arc Damage at High Currents** While rated for 12A, prolonged switching of high inductive loads (e.g., motors, solenoids) without proper snubber circuits can lead to **contact arcing and eventual failure**. Users must implement **flyback diodes or RC snubbers** to mitigate this.

4. **Coil Voltage Sensitivity** The relay s coil is optimized for **12V DC**, but using voltages outside its specified range (e.g., 24V or 6V) can reduce lifespan or cause erratic operation. A **12V regulator** may be needed if power supply variations are expected.

5. **Limited Lifespan Under Heavy Loads** While durable, **continuous high-current switching** (e.g., 24/7 operation) will eventually wear out the contacts, requiring eventual replacement. The exact lifespan depends on usage conditions.

6. **Not Ideal for Ultra-High-Speed Applications** While fast for most applications, it is not optimized for **nanosecond-level switching** (used in RF or high-frequency electronics). For such cases, solid-state relays (SSR) may be more appropriate.

7. **Potential for False Triggers in Noisy Environments** If exposed to **electromagnetic interference (EMI)**, the coil or contacts may misfire. Shielding or proper wiring may be necessary in sensitive applications.

8. **Soldering and Installation Complexity** Due to its size and terminals, installation may require **more precise soldering or terminal block connections**, which could be challenging for beginners.

---

### **Conclusion**

The **Crydom H12WD4890G (Sensata)** is a **high-performance relay** well-suited for **industrial, automotive, and automation applications** where reliability, current handling, and temperature resistance are critical. Its **Sensata brand backing, low contact resistance, and wide operating range** make it a strong choice for professionals working with **motors, solenoids, or high-power switching**.

However, its **higher cost, bulkier design, and need for proper snubbing circuits** may not justify its use in **low-power or cost-sensitive applications**. If budget is a concern, alternatives like **Omron G2R-13F** or **TE Connectivity relays** offer similar performance at a lower price, though with slightly different specifications.

### **Recommendation**

- You need a **reliable, high-current relay** for **industrial control, automotive systems, or PLC applications**.

- Your application involves **high-voltage or high-temperature environments**.

- You prioritize **brand reliability and long-term durability** over cost savings.

- You are willing to **implement proper snubber circuits** to protect the relay from inductive loads.

- Your budget is tight, and a **lower-cost relay** (e.g., 10A or 15A generic relays) meets your current needs.

- You require **ultra-compact or high-frequency switching**, in which case a **solid-state relay (SSR)** may be better.

- Your application involves **extremely clean power supplies** (no EMI), reducing the need for shielding.

For most **serious electrical and automation projects**, the **H12WD4890G is an excellent choice** just ensure proper circuit design to maximize its lifespan.

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed. SENSATA TECHNOLOGIES H12WD4890G / USED SOLID STATE RELAY, 48-660 VAC, 32VDC, 90A, ZERO SWITCHING, SURFACE MOUNT, SCREW, W/ LED. Part Number H12WD4890G.

All products are guaranteed to be working but may show signs of use if purchasing a used product. Sells new and surplus product develops channels to purchase such.

part #: h12wd4890g prices

• $40.00-$99.99

specifications automationjack:

• brand: Crydom
• mpn: H12wd4890g

returns automationjack:

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

shipping automationjack:

• service: Standard
• type: Fixed
• class: Standard
• cost: $12.90
• transit: 29-33 Days

seller automationjack:

• # reviews: 192629
• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%

payments automationjack:

• wallet: Paypal
• other
• credit card: Visa

offer automationjack:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: March 2, 2026
• quantity: 1

general automationjack:

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

Crydom H12WD4890G Is Similar To:

• Crydom Mcpc2425c Sensata Technologies Used Tested Cleaned (71.2% similar) All products are guaranteed to be working but may show signs of use. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such. The product is used surplus. Packaging and handling, items are safely eds packaged in custom shipping ...(August 8th, 2024)
• Crydom S3012a Sensata Technologies Used (86% similar) All products are guaranteed to be working but may show signs of use. The product is used surplus. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Part number S3012A. Sells new and surplus product develops channels to purchase such. Call to use a ...(November 18th, 2024)
• Crydom Cmra4865ep Sensata Technologies Used (82.2% similar) Sells new and surplus product develops channels to purchase such. The product is used surplus. Call to use a shipping service other than the ones listed. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Part number CMRA4865EP. All products are ...(January 7th, 2025)
• Crydom Drc3p48d400r Sensata Technologies Used (82.6% similar) Sells new and surplus product develops channels to purchase such. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed. Part number DRC3P48D400R. All products are guaranteed to be working but may ...(March 31st, 2025)
• Crydom H12d4890-10 Sensata Technologies H12d4890-10 H12d489010 (74.1% similar) In perfect condition...(July 6th, 2025)
• Crydom Ga3-12a45r Sensata Technologies Ga312a45r Used (76% similar) All products are guaranteed to be working but may show signs of use. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. Sells new and surplus product develops channels to purchase such. The product is used surplus. Call to use a shipping service other ...(September 6th, 2025)
• Crydom Cwa4825 Sensata Technologies Used (87.4% similar) The product is used surplus. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use. Call to use a shipping service other than the ones listed. Part number CWA4825...(November 21st, 2025)
• Crydom A2475 Sensata Technologies Used (87.1% similar) With its reliable brand reputation and specific model number, this product is likely to be a valuable efficient addition any industrial automation system. This specific model is the A2475 used, indicating that it a previously owned item has been tested and certified for quality performance...(November 29th, 2025)
• Crydom D04a Sensata Technologies Used (85.7% similar) Part number D04A. Packaging and handling: items are safely eds packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use if purchasing a used product. Sells new and surplus product develops channels to purchase such. Call to use a ...(January 22nd, 2026)
• Crydom Hd4890-10 Sensata Technologies Hd489010 Used (83.7% similar) Call to use a shipping service other than the ones listed. All products are guaranteed to be working but may show signs of use if purchasing a used product. Sells new and surplus product develops channels to purchase such. Packaging and handling: items are safely eds packaged in custom shipping ...(March 7th, 2026)
• Crydom D1d20 Vintage Sensata Technologies Used Z3 (81.3% similar) Vintage Crydom sensata technologies D1D20 / used Z3...(April 22nd, 2026)