VERIS H548 Hawkeye Combination Switching Relay Spst 0.5 No/nc

( Brand: Veris ), ( Manufacturer Part Number: H548 )

Review VERIS Hawkeye 548 0.5 To Combination Switching Relay Spst No/nc

The **Veris H548 Hawkeye 548 0.5 Ampere Combination Switching Relay (SPST No/NC)** is a high-performance, versatile relay designed for precision control in industrial, commercial, and automation applications where reliability and efficiency are paramount. Engineered with Veris s signature engineering excellence, this compact yet robust relay combines the functionality of a **single-pole, single-throw (SPST) switching mechanism** with **normally open (NO) and normally closed (NC) contact configurations**, offering unmatched flexibility for circuit management. Built to handle **0.5 amperes of continuous current** at standard voltage levels, it is ideal for low-power signaling, control logic, and auxiliary switching tasks where minimal heat dissipation and low contact resistance are critical. The relay s **Hawkeye 548 series** is renowned for its **high switching capacity, low contact bounce, and extended operational lifespan**, making it a dependable choice for applications such as PLC control systems, motor starters, sensor interfaces, and relay-based logic circuits.

What sets the **H548 apart** is its **modular and adaptable design**, featuring a **coil voltage range of 5 30V DC or 110 240V AC**, ensuring compatibility with a wide array of control signals and power supplies. The **SPST configuration** allows for straightforward integration into circuits requiring either a single break or make contact, while the **NO/NC versatility** enables seamless switching between active and inactive states without the need for additional components. Constructed from **high-grade, corrosion-resistant materials**, the relay is built to withstand harsh environmental conditions, including temperature fluctuations, humidity, and electrical noise, making it suitable for both indoor and outdoor installations. Its **low-power consumption** and **fast response time** further enhance its efficiency, reducing energy waste and minimizing latency in control applications.

The **H548 s compact form factor** allows for easy mounting in tight spaces, whether in a control panel, distribution board, or automated machinery, while its **plug-and-play design** simplifies installation and reduces wiring complexity. Whether used in **industrial automation, building management systems, or custom control panels**, this relay delivers **consistent performance, minimal wear, and reliable operation** over thousands of switching cycles. With its **precise mechanical actuation and optimized contact materials**, it ensures **low contact resistance and high current-carrying capacity**, even under intermittent or cyclic loading. For engineers and technicians seeking a **durable, high-performance relay** that balances cost-effectiveness with advanced functionality, the **Veris H548 Hawkeye 548 0.5A SPST (NO/NC) Combination Relay** stands as an exemplary solution for demanding switching applications.

### **Pros and Cons of buying a Veris H548 Hawkeye 548 0.5A 15V SPST (Single Pole Single Throw) NO/NC Combination Switching Relay**

1. **Dual Functionality (NO/NC)** The relay provides both normally open (NO) and normally closed (NC) contacts in a single unit, making it versatile for applications requiring switching in both states without needing separate relays.

2. **Low Current Rating (0.5A)** Suitable for low-power applications such as signal switching, LED control, small motor drivers, or logic-level switching in circuits where higher currents are not required.

3. **Low Voltage Operation (15V)** Works well with common control voltages like 5V, 12V, or 15V, making it compatible with Arduino, Raspberry Pi, and other microcontroller-based systems.

4. **Compact and Reliable** The Hawkeye series is known for its small form factor and durable construction, making it ideal for space-constrained projects.

5. **Mechanical Latching (Optional)** Some variants in the Hawkeye series support latching (retaining state without power), though this specific model (H548) is likely non-latching. If latching is needed, this should be confirmed before purchase.

6. **Good for Signal Switching** Effective for non-inductive loads like LEDs, relays, or transistors where low current is sufficient.

7. **Affordable** Generally priced competitively compared to other high-quality relays in its class.

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1. **Low Current Limit (0.5A)** Not suitable for high-power applications such as motors, solenoids, or high-wattage lighting. For such uses, a higher-current relay (e.g., 5A, 10A, or 10A ) is required.

2. **No Built-in Diode (Flyback Protection Missing)** Inductive loads (e.g., motors, coils) require an external flyback diode to protect the relay from voltage spikes. The user must add this separately.

3. **Potential Wear Over Time** Like all mechanical relays, repeated switching can lead to contact arcing and eventual degradation, though the Hawkeye series is designed for longevity.

4. **Limited Voltage Rating** The 15V coil voltage may not be ideal for all control systems (e.g., 24V or 36V setups). Lower voltages (like 5V or 12V) may require additional circuitry (e.g., a transistor driver).

5. **No Integrated Optocoupler** If galvanic isolation is needed (e.g., for safety or noise reduction), an optocoupler relay would be a better choice, though this is not a dealbreaker for many applications.

6. **Soldering Required for Some Installations** Depending on the mounting method, users may need to solder connections, which could be inconvenient for quick prototyping.

7. **Potential for False Triggers** In noisy environments, the relay coil may pick up interference unless proper filtering (e.g., capacitors) is added.

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The **Veris H548 Hawkeye 548 0.5A 15V SPST NO/NC relay** is a solid choice for **low-power, low-voltage switching applications** where dual contact functionality (NO/NC) is beneficial. It excels in signal switching, LED control, and microcontroller-driven projects but is **not suitable for high-current or inductive loads** without additional components (e.g., a flyback diode).

- **Non-inductive loads under 0.5A** (e.g., LEDs, transistors, small sensors),

- **A need for both NO and NC contacts in one relay**, or

- **Compatibility with 5V 15V control signals**,

then this relay is a practical and cost-effective option.

- **Higher current handling** (e.g., motors, solenoids),

- **Galvanic isolation** (optocoupler relay),

- **Latching functionality**, or

- **Robustness for frequent high-current switching**,

you may need to consider alternatives like a **higher-current relay, a transistor-based switch, or a solid-state relay**.

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Your application involves **low-power switching** ( 0.5A).

You need **both NO and NC contacts** in a single unit.

Your control voltage is ** 15V** (e.g., 5V or 12V).

You are willing to **add a flyback diode** if inductive loads are involved.

You need to switch **motors, solenoids, or high-wattage loads**.

Your control voltage is **significantly higher than 15V** (e.g., 24V ).

You require **latching or high-reliability industrial use**.

- For **higher current**: **Omron G2R-13VDC**, **Panasonic AK2011**, or **TE Connectivity 12V 10A relays**.

- For **optocoupler isolation**: **MOC3021-based relays** or **solid-state relays (SSR)**.

- For **latching**: **Veris H549 (latching version)** or **Omron G5LE series**.

Details:

In addition, we often have more than the listed quantity in stock. SAM UEI: L1UUS9LTYXG7, CAGE NCAGE: 9KWG6, Section 889 Compliant. This includes automation, building controls, electrical, HVAC, plumbing, and industrial materials. Veris H548 Hawkeye 548 0.5 to 15 A Combination Switching Relay, SPST, NO/NC.

D-U-N-S: 01-246-1875, Expiring BIN: 961642662, LEI: 984500DZF582F7RD9J66.

part #: h548 prices

• $65.00-$86.00

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• brand: Veris
• mpn: H548

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