SG23NA300R – SURGE PROTECTION DEVICE TYPE 2 3P+N PLUGIN + RELAY

Q: What is the Lovato SG23NA300R used for?

It protects three-phase AC electrical installations from transient overvoltages caused by lightning activity and switching operations.

Q: What type of surge protection device is this?

The SG23NA300R is a Type 2 surge protection device designed for low-voltage AC power distribution systems.

Q: Does it include remote monitoring?

Yes. The device includes an integrated auxiliary contact that provides remote indication of its operational status.

Q: Can the protection cartridges be replaced?

Yes. The surge protection cartridges are plug-in and replaceable, allowing simple maintenance without replacing the complete unit.

Q: Where is the SG23NA300R typically installed?

It is typically installed on a DIN rail inside electrical distribution boards, industrial switchgear and control panels.

Lovato SG23NA300R Type 2 surge protection device with 3P+N configuration, plug-in cartridges, remote signalling contact and DIN rail mounting for AC power systems.

SKU: SG23NA300RMPN: SG23NA300R

List Price £220.80 ex VAT

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£220.80

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Manufacturer Lead Time

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Why Choose the Lovato SG23NA300R Surge Protection Device?

The Lovato SG23NA300R is a high-performance Type 2 surge protection device (SPD) engineered to protect low-voltage three-phase electrical installations against transient overvoltages caused by indirect lightning strikes and switching operations. As part of the reliable Lovato SG2 surge protection series, it safeguards industrial equipment, commercial electrical systems and sensitive electronic devices from surge-related damage.

Designed for 230/400 V AC power systems, the SG23NA300R features a 3P+N configuration with plug-in replaceable protection cartridges and an integrated remote signalling contact for continuous status monitoring. Its DIN rail mounted design allows straightforward installation inside switchboards and industrial control panels.

Offering a 20 kA nominal discharge current (In) per pole and a 50 kA maximum discharge current (Imax) on line conductors, the SG23NA300R complies with IEC/EN 61643-11, providing dependable surge protection for industrial, commercial and photovoltaic electrical installations.

Key Advantages

Reliable Type 2 surge protection for three-phase AC power systems.
3P+N configuration for comprehensive phase and neutral protection.
20 kA nominal discharge current per pole.
50 kA maximum discharge current on L-N circuits.
Integrated remote signalling contact for monitoring device status.
Plug-in replaceable cartridges simplify maintenance and reduce downtime.

Key Features

Lovato Electric SG2 series.
Type 2 surge protection device.
230/400 V AC system.
3P+N pole configuration.
300 V AC maximum continuous operating voltage (Uc).
20 kA nominal discharge current (In).
50 kA / 65 kA maximum discharge current (Imax).
Voltage protection level <1.5 kV.
Integrated thermal disconnection protection.
Front status indicator with auxiliary remote contact.
DIN rail mounting.
Suitable for photovoltaic AC applications.

Reliable Protection for Three-Phase Electrical Systems

The Lovato SG23NA300R is designed to divert damaging transient overvoltages safely away from connected equipment, helping to reduce unplanned downtime and extend the service life of valuable electrical and electronic assets.

Its replaceable protection modules, thermal disconnection system and remote status indication make it an ideal solution for industrial automation, commercial buildings, manufacturing facilities and photovoltaic AC distribution systems.

Typical Applications

Main electrical distribution boards.
Industrial control panels.
Motor control centres.
Commercial buildings.
Manufacturing facilities.
Photovoltaic AC distribution systems.

Technical Specifications

Phase	Three Phase
Manufacturer	Lovato Electric
Series	SG2
Model	SG23NA300R
Product type	Type 2 Surge Protection Device (SPD)
Application	AC power lines
Rated system voltage	230/400 V AC
Maximum continuous operating voltage (Uc)	300 V AC
Number of poles	3P+N
Nominal discharge current (In 8/20 μs)	20 kA
Maximum discharge current (Imax 8/20 μs)	50 kA (L-N) / 65 kA (N-PE)
Voltage protection level (Up)	<1.5 kV
Response time	<25 ns (L-N), <100 ns (N-PE)
Maximum short-circuit current	50 kA (line fuse ≤250 A)
Remote signalling	Yes
Mounting type	DIN rail
DIN modules	4
Operating temperature	-40°C to +85°C
Weight	Approx. 492 g
Compliance	IEC/EN 61643-11
HS Code	85365080
Poles	3-pole + N
Device Type	Surge protection device
SPD Type	Type 2
Nominal Discharge Current (In)	20 kA
Remote Signal	Yes

Frequently Asked Questions

What is the Lovato SG23NA300R used for?

It protects three-phase AC electrical installations from transient overvoltages caused by lightning activity and switching operations.

What type of surge protection device is this?

The SG23NA300R is a Type 2 surge protection device designed for low-voltage AC power distribution systems.

Does it include remote monitoring?

Yes. The device includes an integrated auxiliary contact that provides remote indication of its operational status.

Can the protection cartridges be replaced?

Yes. The surge protection cartridges are plug-in and replaceable, allowing simple maintenance without replacing the complete unit.

Where is the SG23NA300R typically installed?

It is typically installed on a DIN rail inside electrical distribution boards, industrial switchgear and control panels.

Trusted Protection for Industrial Power Distribution

Lovato Electric surge protection devices are trusted worldwide by electrical contractors, panel builders and automation engineers to provide dependable protection for commercial and industrial power systems.

Phase	Three Phase
Manufacturer	Lovato Electric
Series	SG2
Model	SG23NA300R
Product type	Type 2 Surge Protection Device (SPD)
Application	AC power lines
Rated system voltage	230/400 V AC
Maximum continuous operating voltage (Uc)	300 V AC
Number of poles	3P+N
Nominal discharge current (In 8/20 μs)	20 kA
Maximum discharge current (Imax 8/20 μs)	50 kA (L-N) / 65 kA (N-PE)
Voltage protection level (Up)	<1.5 kV
Response time	<25 ns (L-N), <100 ns (N-PE)
Maximum short-circuit current	50 kA (line fuse ≤250 A)
Remote signalling	Yes
Mounting type	DIN rail
DIN modules	4
Operating temperature	-40°C to +85°C
Weight	Approx. 492 g
Compliance	IEC/EN 61643-11
HS Code	85365080
Poles	3-pole + N
Device Type	Surge protection device
SPD Type	Type 2
Nominal Discharge Current (In)	20 kA
Remote Signal	Yes

UK delivery

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