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SA31NA320R – SURGE PROTECTION DEVICE TYPE 2 1P+N+R.C.
Lovato SA31NA320R Type 3 surge protection device with plug-in cartridge, 1P+N configuration and remote signalling contact for protecting AC power systems.
£49.86
Why Choose the Lovato SA31NA320R Surge Protection Device?
The Lovato SA31NA320R is a high-performance Type 3 surge protection device (SPD) designed to protect sensitive electrical and electronic equipment from transient overvoltages caused by switching events and residual lightning surges. As part of the trusted Lovato Electric SA3 surge protection range, it provides reliable protection for final distribution boards, control panels and industrial automation systems.
Designed for installation on 230 V AC power systems, the SA31NA320R features a 1P+N configuration with a replaceable plug-in protection cartridge and integrated remote status signalling contact. Its compact single-module DIN rail design simplifies installation while allowing quick maintenance when the cartridge reaches end of life.
Engineered to IEC/EN 61643-11 standards, this surge protection device offers a 10 kV / 5 kA combination wave rating, rapid response times and low residual voltage, helping protect PLCs, HMIs, instrumentation, control equipment and other sensitive electronic devices in commercial and industrial environments.
Key Advantages
- Compact Type 3 surge protection device for AC power systems.
- 1P+N configuration for single-phase installations.
- Integrated remote signalling contact for monitoring device status.
- Replaceable plug-in protection cartridge for easy maintenance.
- Fast response time helps minimise transient overvoltage damage.
- DIN rail mounting for straightforward installation in electrical panels.
Key Features
- Lovato Electric SA3 series.
- Type 3 surge protection device (SPD).
- 1P+N pole configuration.
- 320 V AC maximum continuous operating voltage (Uc).
- 10 kV / 5 kA combination wave protection (Uoc/Icw).
- Voltage protection level <1.5 kV.
- Remote signalling auxiliary contact.
- Compact 1 DIN module design.
- DIN rail mounting.
- Front status indicator for operational monitoring.
Reliable Protection Against Electrical Surges
Transient overvoltages can significantly reduce the lifespan of electronic equipment and may lead to costly downtime. The Lovato SA31NA320R helps minimise these risks by diverting surge energy safely to earth before it reaches sensitive devices.
Its replaceable cartridge, visual status indicator and remote monitoring contact make the device ideal for industrial automation, building services and commercial electrical installations where equipment reliability and preventative maintenance are essential.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- Building management systems.
- Electrical distribution boards.
- Instrumentation and monitoring equipment.
- Commercial and industrial electrical installations.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole + N | |
| Device Type | Surge protection device | |
| SPD Type | Type 3 | |
| Remote Signal | Yes | |
| Manufacturer | Lovato Electric | |
| Series | SA3 | |
| Model | SA31NA320R | |
| Product type | Type 3 Surge Protection Device (SPD) | |
| Application | AC power lines | |
| Operating voltage | 230 V AC | |
| Maximum continuous operating voltage (Uc) | 320 V AC | |
| Number of poles | 1P+N | |
| Combination wave rating (Uoc/Icw) | 10 kV / 5 kA | |
| Voltage protection level (Up) | <1.5 kV | |
| Response time | <100 ns | |
| Maximum short-circuit current | 10 kA | |
| Remote status indication | Yes | |
| Mounting type | DIN rail | |
| DIN modules | 1 | |
| Operating temperature | -40°C to +85°C | |
| Weight | Approx. 140 g | |
| Compliance | IEC/EN 61643-11 | |
| HS Code | 85365080 |
Frequently Asked Questions
What is the Lovato SA31NA320R used for?
It is a Type 3 surge protection device designed to protect sensitive electrical and electronic equipment from transient overvoltages on AC power systems.
What electrical system is this SPD designed for?
The SA31NA320R is intended for 230 V AC single-phase systems with a 1P+N configuration.
Does the device include remote monitoring?
Yes. It includes an integrated auxiliary contact for remote status indication, allowing monitoring from building or automation systems.
Can the protection module be replaced?
Yes. The surge protection cartridge is plug-in and can be replaced without changing the complete device.
Where is the SA31NA320R typically installed?
It is typically installed on a DIN rail inside electrical distribution boards, control panels and industrial automation cabinets.
Trusted Protection for Industrial Electrical Systems
Lovato Electric surge protection devices are trusted worldwide by panel builders, electrical contractors and automation engineers to help safeguard critical equipment from damaging transient overvoltages.
