Electrical systems are vulnerable to voltage spikes and surges that can damage equipment, cause costly downtime, and compromise system reliability. Transient voltage surge can be caused by a number of situations including operations of circuit breakers, VFDs, motors, transformers, capacitor banks or switching of power networks. Low-voltage Surge Protective Devices (SPDs) play a critical role in safeguarding sensitive equipment from these harmful electrical disturbances.
Why SPDs Matter:
- Prevent Equipment Damage: SPDs limit voltage surges by diverting surge currents away from electrical systems, helping prevent irreversible damage to sensitive equipment.
- Improve Reliability: By protecting systems from transient overvoltage, SPDs ensure consistent performance, reducing the risk of unexpected failures and downtime.
- Cost-Effective Protection: SPDs are an affordable way to safeguard electrical systems, providing long-term protection at a low cost compared to potential repair or replacement expenses.
- Versatile Applications: SPDs depending on the Type rating are suitable for a wide range of facilities, including industrial systems, communications infrastructure, process control systems, and even residential electrical panels to protect home appliances.
How SPDs Work:
SPDs function by limiting the voltage supplied to a circuit during a surge event. The SPD provides a low impedance path for the surge through its Metal oxide Varistor (MOV) absorbing or diverting excess surge current to the ground, ensuring that electrical devices continue to operate within safe voltage levels. At normal operating voltages, SPDs remain in a high-impedance state, so they don’t interfere with the system’s performance.
NOARK’s U4 Surge Protective Devices
NOARK Electric’s U4 Surge Protective Devices are designed for use in low-voltage AC 50/60Hz systems with voltages up to 600V in delta and wye systems. These SPDs protect your electrical system by suppressing transient overvoltage, discharging energy surge, and ensuring the safety of both circuits and equipment.
Key Features:
- Optional Signal Contact: Provides dry contact signal output to indicate the device’s operational status.
- Built-in Thermal Trip: Automatically disconnects the device when its temperature rises due to faults, ensuring safe operation.
- Pluggable Module Installation: Makes maintenance and replacement quick and easy without disconnecting the product from the grid.
By installing NOARK’s U4 SPD, you can enhance the reliability and safety of your electrical systems and prevent the costly consequences of electrical surges.
Stay protected, stay efficient with NOARK Surge Protective Devices!
For more details, please consult our SPD Data Card.
Contact our Regional Reps here for more information.
