Why Choose the Lovato SG21NA300 Surge Protection Device?
The Lovato SG21NA300 is a compact Type 2 surge protection device (SPD) designed to protect low-voltage AC electrical installations against transient overvoltages caused by indirect lightning effects and electrical switching events. Part of the Lovato SG2 surge protection range, this 1P+N device provides coordinated protection for phase and neutral conductors in single-phase distribution systems.
The SG21NA300 uses a modular, plug-in construction that simplifies installation and maintenance within electrical distribution boards. Its replaceable protection cartridges allow worn surge protection elements to be serviced without replacing the complete device, while visual status indication enables straightforward inspection of protection condition.
With a 300 V AC maximum continuous operating voltage Uc, the SG21NA300 is designed for AC power-line protection in residential, commercial and industrial electrical systems. Its DIN rail format makes it particularly suitable for distribution panels, control cabinets and other installations containing equipment vulnerable to transient overvoltages.
Key Advantages
- Dedicated Type 2 surge protection for low-voltage AC installations.
- 1P+N configuration provides phase-to-neutral and neutral protection for single-phase systems.
- 300 V AC maximum continuous operating voltage Uc.
- Plug-in modular construction simplifies servicing and replacement.
- Visual status indication assists routine inspection and maintenance.
- Fast response to transient overvoltages helps protect sensitive electrical and electronic equipment.
- Compact DIN rail mounting for distribution boards and control panels.
Key Features
- Lovato SG2 surge protection series.
- Type 2 surge protection device.
- 1P+N pole configuration.
- Designed for AC power-line surge protection.
- 300 V AC maximum continuous operating voltage Uc.
- Replaceable plug-in protection cartridges.
- Integrated visual status indication.
- Protection against switching surges and indirect lightning-induced overvoltages.
- DIN rail format for straightforward panel installation.
Reliable Protection Against Transient Overvoltages
Type 2 surge protection devices are installed within low-voltage distribution systems to limit transient overvoltages caused by switching operations and indirect lightning effects. By diverting surge energy away from downstream equipment, the Lovato SG21NA300 helps reduce the risk of insulation damage, premature component failure and disruption to sensitive electrical and electronic systems.
The SG2 series combines modular DIN rail construction with replaceable protection cartridges, allowing efficient maintenance throughout the life of the installation. Its 1P+N arrangement makes the SG21NA300 particularly suitable for protecting single-phase AC circuits where coordinated phase and neutral surge protection is required.
Typical Applications
- Single-phase electrical distribution boards.
- Commercial building electrical systems.
- Industrial control and automation panels.
- Residential electrical distribution equipment.
- Machine control cabinets and auxiliary power circuits.
- Protection of sensitive electronic and electrical equipment against transient overvoltages.
