XGW MK series combined Type 1+2 surge protection device for lighting distribution boards

XGW MS series Type 2 surge protection device for luminaire-internal mounting

XGW ML series Type 1 surge protection device for pole-top mounting

Surge Protection Devices for LED Lighting

Name: Surge Protection Devices for LED Lighting
Brand: XGW Tech
Availability: InStock

XGW builds surge protective devices around a GDT + MOV hybrid with a thermal disconnect, so end of life is a controlled open circuit rather than a short to earth. Three series cover luminaire-internal, distribution-panel and pole-top duty, all type-tested on the IEC 61643-11 combination wave.

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Key Features

Type 1, Type 2 and combined Type 1+2 devices across three series
Ratings of 10 kV / 5 kA and 20 kV / 10 kA to match site exposure class
GDT + MOV hybrid — the gas tube blocks the leakage current that ages a bare MOV
Thermal disconnect means end of life is a controlled open circuit, never a short to earth
Type-tested on the 1.2/50 µs and 8/20 µs combination wave to IEC 61643-11
UL 1449 recognition on the MK series for North American specifications

Technical Specifications

Technical specifications
Standard	IEC 61643-11; UL 1449 (MK series)
Device types	Type 1, Type 2, Type 1+2
Ratings	10 kV / 5 kA and 20 kV / 10 kA
Protection modes	L-N, L-PE and N-PE depending on series
Technology	GDT + MOV hybrid with thermal disconnect
Mounting	Luminaire internal, panel / DIN rail, pole-top

SPD Series

Three mounting positions, three device types — sized to where the surge actually enters the installation.

Surge protection device series specifications
Series	Type	Models	Imax	Modes	Mounting	Standard
MS	Type 2	MS-10KV / MS-20KV	10 kV / 5 kA	L-N, L-PE	Luminaire internal	IEC 61643-11
MK	Type 1+2	MK-20KV / MK-10KV	20 kV / 10 kA	L-N, L-PE, N-PE	Panel / DIN rail	IEC 61643-11 · UL 1449
ML	Type 1	ML-20KV / ML-10KV	20 kV / 10 kA	L-N, L-PE	Pole-top	IEC 61643-11

MS is installed inside the luminaire or pole junction box and protects the LED driver from induced transients. MK is a combined Type 1+2 device for distribution boards feeding lighting circuits, where critical LED and control electronics sit downstream. ML mounts at the pole top and handles direct lightning current at the point of exposure, before it reaches the luminaire.

All three are type-tested on the 1.2/50 µs and 8/20 µs combination wave — not a single-wave bench figure — and every GDT + MOV stack includes a thermal disconnect.

Applications

Street lighting

Luminaire-internal Type 2 protection for city roads and residential streets, protecting the driver from induced transients.

Highway and tunnel

High-power surge protection with dimming control for highways, tunnels and bridges where exposure is high and access is costly.

Distribution panels

Combined Type 1+2 devices on boards feeding lighting circuits, protecting critical control electronics.

Pole-top exposure

Type 1 devices mounted at the top of the pole, handling direct lightning current before it reaches the luminaire.

Frequently Asked Questions

What is the difference between Type 1, Type 2 and Type 1+2?

Type 1 devices are tested for direct lightning current and are typically installed at the point of exposure, such as a pole top. Type 2 devices handle induced transients and are installed inside equipment or at distribution boards. A Type 1+2 device is tested for both and suits distribution panels feeding lighting circuits.

Where should an SPD be installed in a street light?

It depends on the exposure. For most street lighting, a Type 2 device inside the luminaire or pole junction box protects the driver. Where lightning exposure is direct, a Type 1 device at the pole top handles the current before it reaches the luminaire, and a combined Type 1+2 device at the distribution board protects everything downstream.

What does the thermal disconnect do?

It takes the device out of circuit in a controlled way at end of life. Without it, a degraded MOV can fail as a short to earth. With it, end of life is a controlled open circuit — which is the failure mode you want on a street lighting network.

How do I choose between 10 kV and 20 kV?

Match the rating to the exposure class of the site. Sheltered urban streets are normally served by 10 kV / 5 kA; exposed routes, elevated sites and regions with high lightning activity justify 20 kV / 10 kA.

Do your SPDs carry UL recognition?

The MK series carries UL 1449 recognition in addition to IEC 61643-11. All series are type-tested on the IEC combination wave; full test reports are available on request.

Download the Full Catalogue

The smart lighting accessories catalogue covers the NEMA and Zhaga platforms, the SPD range, certification standards and reference deployments across 50+ countries.

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