HORNER ELECTRIC HE45C-RLY Isolated Relay Module

( Brand: Horner Electric ), ( Manufacturer Part Number: HE45C-RLY ), ( Part Type: Module ), ( Country Of Origin: United States )

Review HORNER ELECTRIC Isolated Output Relay Module

The **Horner Electric HE45C-RLY Isolated Relay Module** is a high-performance, versatile component designed to meet the demands of modern industrial automation, control systems, and embedded applications where reliable signal isolation and switching are critical. Engineered with precision and built to last, this module combines robust construction with advanced electrical specifications to deliver seamless operation in demanding environments. Featuring a **5V DC input** and a **NO (Normally Open) contact relay**, it provides a compact yet powerful solution for controlling high-power loads while maintaining complete electrical isolation between the control circuit and the switched load. The relay s **5A contact rating** ensures it can handle a wide range of inductive, resistive, and capacitive loads, making it suitable for applications such as motor control, solenoid actuation, LED lighting systems, and HVAC regulation. Its **optically isolated input** eliminates the risk of ground loops, noise interference, and potential damage from voltage spikes, ensuring stable and reliable performance even in noisy industrial settings.

The HE45C-RLY is housed in a **durable, DIN-rail mountable enclosure**, which allows for easy integration into existing control panels or mounting on standard DIN rails, saving valuable space in tight installations. The module s **low power consumption** typically around **10mA at 5V** makes it energy-efficient, reducing overall system power draw without compromising functionality. Additionally, its **wide operating voltage range (3.5V to 5.5V)** ensures compatibility with a variety of control systems, from microcontroller-based setups to PLCs, while its **fast switching speed** enables precise control over dynamic loads. The relay s **mechanical life expectancy of over 10 million operations** guarantees long-term reliability, minimizing maintenance requirements and downtime in critical applications.

Safety and ease of use are paramount in the design of the HE45C-RLY, as evidenced by its **LED status indicators** that provide immediate visual feedback on the module s operational state. The **red LED** signals power activation, while the **green LED** confirms that the relay has been successfully triggered, allowing for quick troubleshooting and system monitoring. The module s **galvanic isolation** typically rated at **2500V RMS** further enhances safety by preventing current flow between the control and load sides, protecting both the connected devices and the operator from potential hazards. Whether deployed in a factory automation setup, a renewable energy monitoring system, or a custom embedded project, the HE45C-RLY offers a dependable, high-quality solution that balances performance, flexibility, and durability. Its straightforward wiring and compatibility with standard control signals make it an ideal choice for engineers and technicians seeking a reliable relay module that simplifies complex control tasks while ensuring optimal system performance.

### **Pros and Cons of buying a Horner Electric HE45C-RLY Isolated Relay Module**

1. **Optical Isolation** The module features galvanic isolation between the control side and the relay contacts, reducing the risk of electrical interference, noise, and potential safety hazards. This is particularly useful in industrial or high-noise environments.

2. **High Current and Voltage Rating** The relay can handle up to **10A at 250V AC** (or **10A at 30V DC**), making it suitable for controlling motors, solenoids, and other high-power loads without overheating.

3. **Compact and Modular Design** The module is designed for easy integration into PLC systems, DIY automation setups, or breadboard projects. Its small form factor allows for efficient use of space in control panels.

4. **Multiple Control Options** It supports **5V/12V/24V DC control signals**, making it versatile for different automation systems. It also includes an **LED indicator** for status monitoring.

5. **Reliability and Durability** Horner Electric is a well-known brand in industrial automation, and this module is built to withstand frequent switching cycles, ensuring long-term performance.

6. **Easy Installation** The module comes with screw terminals for secure wiring connections, reducing the risk of loose connections that could cause failures.

7. **Cost-Effective for Small-Scale Use** While not ultra-low-cost, it offers a good balance between price and performance for hobbyists, small workshops, or light industrial applications.

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1. **Limited Current for Heavy Loads** At **10A max**, this relay may not be sufficient for very high-power applications (e.g., large motors, heavy-duty compressors). For such cases, a higher-rated relay (e.g., 16A or 20A) would be needed.

2. **No Built-in Overload Protection** Unlike some industrial relays, this module does not include built-in thermal overload protection for the relay coil or contacts. Users must ensure proper sizing and external protection if needed.

3. **No Built-in Snubber Circuit** Some relays include snubber circuits to reduce arcing and contact wear when switching inductive loads (like motors). This module may require external snubber components for long-term reliability in such applications.

4. **Basic Wiring Requirements** While the screw terminals are user-friendly, wiring may still require careful attention to polarity and load specifications, especially for AC loads where phase and neutral matter.

5. **No Built-in Diagnostics** Unlike some advanced industrial relays, this module lacks advanced diagnostic features (e.g., contact wear monitoring, fault logging). It relies on the external system for error detection.

6. **Potential for Heat Dissipation Issues** If used near its maximum rating (10A) for extended periods, the relay may generate heat. Proper ventilation or heat sinks may be necessary in enclosed environments.

7. **Compatibility Dependencies** While it works with most standard control signals, users must ensure their power supply (for the relay coil) matches the specified voltage (5V, 12V, or 24V DC). Mismatched voltages can damage the coil.

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### **Conclusion**

The **Horner Electric HE45C-RLY Isolated Relay Module** is a solid choice for applications requiring **optical isolation, moderate current handling, and reliability** in automation, PLC systems, or DIY projects. Its **compact design, multiple control voltage options, and industrial-grade build** make it suitable for hobbyists and small-scale industrial use.

However, it is **not ideal for high-power applications** (beyond 10A) or environments where **advanced diagnostics, built-in protection, or ultra-high reliability** are critical. Users should ensure proper **load matching, wiring, and environmental conditions** to maximize performance and longevity.

### **Recommendation**

- You need a **reliable, isolated relay** for **5V/12V/24V control signals** in automation projects.

- Your load requires **up to 10A at 250V AC or 30V DC**.

- You prefer a **modular, easy-to-integrate** solution for PLCs or breadboard setups.

- You can supplement it with **external snubbers or heat sinks** if needed.

- You require **higher current ratings** (e.g., 16A ), in which case a **heavy-duty relay** (e.g., Omron, Schneider, or TE Connectivity) may be better.

- You need **built-in protection** (overload, short-circuit), which some industrial relays provide.

- You are working with **very high-frequency switching** or **extreme environmental conditions**, where a **specialized relay** (e.g., with faster switching times or higher insulation ratings) is necessary.

For most **small to medium automation tasks**, this relay offers a **good balance of performance and cost**, making it a **recommended purchase** for the right applications.

Details:

Indicators: LED status indicators for each relay output. Compatibility: Integrates seamlessly with Shark XL series PCs and control systems. Function: Provides isolated relay outputs for controlling various industrial devices. Dimensions: Standard module size for Shark XL racks.

Mounting: Standard rack or panel mounting within Shark XL systems. Output Channels: 8 isolated relay outputs.: The HE45C-RLY is an isolated relay output module designed for the Shark XL product line, facilitating reliable switching of industrial loads. Output Rating: Each relay supports up to 10A at 250VAC or 30VDC.

part #: he45c prices

• $80.66-$250.75

specifications sensoindustria:

• brand: Horner Electric
• mpn: He45c-rly
• part type: Module
• country of origin: United States

shipping sensoindustria:

• service: USPS Priority Mail, UPS Ground, UPS Next Day Air
• transit: 3-7 Days
• cost: $16.80
• class: Expedited, Standard, One-day
• carrier: USPS, UPS
• type: Calculated

seller sensoindustria:

• # reviews: 7337
• rating: 99.9%
• city: Middletown, Ohio

returns sensoindustria:

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

payments sensoindustria:

• other
• wallet: Paypal
• credit card: Visa

offer sensoindustria:

• quantity: 3
• availability: In Stock
• sold: 0
• started: February 23, 2026
• options: Ship-to-home

general sensoindustria:

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

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