SIGMATEK CRO081 Dias Relay Module 12-064-081-O

( Brand: Sigmatek ), ( Manufacturer Part Number: CRO081 ), ( Type: Electrical/plc/automation ), ( State: South Carolina ), ( Country: United States )

Review SIGMATEK C dias Relay Output Module

The **Sigmatek CRO081 C-DIAS Relay Module (12-064-081-O)** is a high-performance, compact industrial relay module designed to integrate seamlessly into Sigmatek s C-DIAS automation platform, offering reliable and flexible control solutions for a wide range of applications. Part of Sigmatek s modular and scalable C-DIAS system, this module is engineered to deliver precise and efficient switching capabilities while maintaining robust performance in demanding industrial environments. Featuring eight normally open (NO) relay contacts with a continuous current rating of up to 8 amps at 250V AC or 30V DC, the CRO081 is well-suited for applications requiring high switching capacity, such as motor control, lighting management, heating systems, and signal relaying in automation processes. Each relay contact is individually isolated, ensuring safety and preventing cross-contamination between circuits, while the module s compact DIN-rail mounting design optimizes space efficiency in control panels and distributed automation setups.

The CRO081 is built with Sigmatek s signature focus on durability and reliability, incorporating high-quality materials and robust construction to withstand harsh conditions, including temperature fluctuations, vibration, and electromagnetic interference. The module operates within a temperature range of -25 C to 70 C, making it ideal for both indoor and outdoor industrial applications where environmental stability is critical. Its digital interface ensures seamless communication with the C-DIAS controller, enabling real-time monitoring, diagnostics, and remote control via the platform s intuitive software interface. This integration allows operators to track relay status, detect faults, and configure parameters effortlessly, enhancing overall system efficiency and reducing downtime.

Beyond its technical specifications, the CRO081 stands out for its ease of implementation and compatibility with Sigmatek s broader ecosystem. The module s plug-and-play design simplifies installation, while its compatibility with the C-DIAS automation system ensures smooth integration with other components like I/O modules, PLCs, and human-machine interfaces (HMIs). Whether deployed in discrete manufacturing, process automation, or building automation, the CRO081 provides a dependable solution for applications requiring precise, high-current switching with minimal maintenance. With its blend of performance, flexibility, and industrial-grade reliability, the Sigmatek CRO081 C-DIAS Relay Module is a versatile choice for engineers and automation professionals seeking a dependable relay solution within Sigmatek s advanced automation framework.

### **Pros and Cons of buying a Sigmatek CRO081 C-DIAS Relay Module (12-064-081-O)**

#### **Pros**

1. **High Reliability and Durability** Sigmatek is a well-established brand known for industrial automation components, and this relay module is designed for robust, long-term use in harsh environments. It features a solid-state construction with no moving parts in the relay contacts, reducing wear and tear.

2. **Compact and Space-Efficient Design** The module is part of Sigmatek s C-DIAS series, which is modular and designed for integration into control systems with limited space. This makes it suitable for applications where compactness is important.

3. **Wide Voltage and Current Ratings** The module supports a broad range of AC and DC voltages (up to 250V AC/30V DC) and currents (up to 10A), making it versatile for various industrial applications, including motor control, signaling, and switching.

4. **Isolation and Safety Features** The relay provides optical and electrical isolation between input and output, enhancing safety in high-voltage or sensitive applications. It also includes surge protection to prevent damage from transient voltage spikes.

5. **Easy Integration with PLCs and Control Systems** The module is designed to work seamlessly with Sigmatek s C-DIAS and other industrial control platforms. It supports standard communication protocols (e.g., Modbus, Profibus, or direct wiring) and can be integrated into larger automation setups without complex modifications.

6. **Low Power Consumption** As a solid-state relay, it consumes minimal power compared to electromechanical relays, which can be advantageous in energy-sensitive applications.

7. **Long Lifespan** Solid-state relays typically have a longer operational lifespan (often measured in billions of cycles) compared to mechanical relays, reducing maintenance needs.

8. **Temperature and Environmental Resistance** The module is rated for operation in a wide temperature range (typically -25 C to 70 C) and can withstand vibrations and humidity, making it suitable for industrial or outdoor applications.

9. **Quick Response Time** Solid-state relays activate and deactivate faster than mechanical relays, which can be beneficial in applications requiring rapid switching.

10. **Compatibility with Sigmatek Ecosystem** If you already use Sigmatek products (e.g., PLCs, HMIs, or other modules), this relay will integrate smoothly without compatibility issues.

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#### **Cons**

1. **Higher Upfront Cost** Compared to generic or off-the-shelf relays, Sigmatek s industrial-grade modules are more expensive. This may not be cost-effective for low-volume or non-critical applications where cheaper alternatives exist.

2. **Limited Availability of Spare Parts** While Sigmatek is reliable, finding replacement parts or support for older models can be challenging if the product is discontinued or if you re not a direct Sigmatek customer.

3. **No Mechanical Contacts (Potential Trade-Offs)** Solid-state relays lack physical contacts, which means they cannot handle very high currents or voltages with arcing (e.g., inductive loads like motors without snubber circuits). You may need additional components (e.g., snubber diodes) to protect the relay when switching inductive loads.

4. **Dependence on Power Supply Stability** Solid-state relays require a stable power supply. Fluctuations or power surges can affect their performance, whereas mechanical relays may be more resilient in unstable conditions.

5. **Limited Customization** Unlike some mechanical relays, this module does not offer extensive customization options for contact ratings, coil voltages, or mounting configurations. You must use the exact specifications provided.

6. **Potential for Heat Dissipation Issues** In high-current or continuous-duty applications, the relay may generate heat. Proper cooling or derating may be necessary to prevent overheating, especially in enclosed environments.

7. **Learning Curve for Non-Industrial Users** If you re not familiar with industrial automation or Sigmatek s products, setting up and troubleshooting this module may require additional time and expertise.

8. **Vendor Lock-In Risk** Sigmatek s proprietary integration with their ecosystem means that switching to a different brand later could require significant rework or additional costs.

9. **No Built-In Diagnostics** Unlike some advanced PLCs or relays, this module does not include built-in diagnostic features (e.g., self-testing or fault reporting), which could complicate maintenance in large systems.

10. **Potential for Overkill in Simple Applications** For basic on/off switching in non-industrial settings (e.g., home automation or small projects), this relay may be overkill compared to simpler, cheaper alternatives.

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### **Conclusion**

The **Sigmatek CRO081 C-DIAS Relay Module (12-064-081-O)** is an excellent choice for **industrial automation applications** where reliability, isolation, and long-term performance are critical. Its solid-state design, compact form factor, and compatibility with Sigmatek s ecosystem make it ideal for PLC-controlled systems, motor control, signaling, or high-precision switching tasks. However, its **higher cost, lack of mechanical contacts, and potential overkill for non-industrial uses** may not justify the purchase for simpler or low-budget projects.

If you require a **durable, modular, and high-performance relay** for an industrial setup, this module is a strong recommendation. For **budget-conscious or non-industrial applications**, consider alternatives like generic solid-state relays, mechanical relays, or cheaper brands that meet your specific requirements.

### **Recommendation**

- You are working on an **industrial automation project** (e.g., PLC-based control, motor control, or high-reliability switching).

- You need **optical/electrical isolation** and **long-term durability**.

- You are already using **Sigmatek products** and want seamless integration.

- Your application involves **high-voltage or high-current switching** (with proper snubber circuits for inductive loads).

- You are on a **tight budget** and can use a cheaper, generic relay.

- Your application is **non-industrial** (e.g., home automation, small electronics projects).

- You require **mechanical contacts** for high-current inductive loads without additional components.

- You need **extensive customization** or diagnostics features not provided by this module.

For most **industrial or professional automation needs**, this relay is a **high-quality investment**. For other uses, weigh the cost against simpler alternatives.

Details:

Brand: SIGMATEK. Stock #: DG1626-3276E. SIGMATEK CRO081 C-DIAS RELAY OUTPUT MODULE 12-064-081-O Electrical/PLC/Automation unit available. Used condition.

Model: CRO081. Specifications:: SIGMATEK CRO081 Electrical/PLC/Automation unit available. Overview:: Type: Electrical/PLC/Automation.

part #: cro081 prices

• $100.00-$153.11

specifications sensoindustria:

• brand: Sigmatek
• mpn: Cro081
• type: Electrical/plc/automation
• state: South Carolina
• country: United States

payments sensoindustria:

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

general sensoindustria:

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

shipping sensoindustria:

• transit: 3-7 Days
• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• cost: $20.00
• carrier: FedEx
• type: Fixed

seller sensoindustria:

• city: wood ruff, South Carolina
• rating: 100.0%
• # reviews: 2465

offer sensoindustria:

• started: May 11, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• best offers: True
• availability: In Stock

returns sensoindustria:

• policy: No Returns

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