Surge Protection

40kA Surge Protector 385V AC Type 2 SPD

Walax 40kA Type 2 surge protector for 385V AC industrial distribution. Protects switchgear and equipment from switching and residual surges, with DIN-rail mounting for main and sub-distribution boards.

40kA Imax

High discharge capacity for industrial distribution with elevated surge exposure.

385V AC Rated

Suits three-phase and single-phase industrial supplies.

Type 2 Protection

The standard for sub-distribution boards protecting downstream equipment.

Specifications

Technical Specifications

Standard ratings listed below – custom configurations available on request. Contact our engineers to confirm parameters for your market.

StandardIEC 61643-11 · CE
Max continuous voltage (Uc)385V AC
Max discharge current (Imax)40kA
Nominal discharge current (In)20kA
Voltage protection level (Up)≤ 1.8kV
TypeType 2
Poles1P / 2P / 3P / 4P
Mounting35mm DIN rail
Ambient temperature-40°C to +80°C
Applications

Where These Devices Install

Industrial distribution boards, sub-distribution panels and control cabinets on 385V AC supplies. Protects against switching surges and residual lightning energy.

FAQ

Frequently Asked Questions

A Type 2 SPD protects against switching surges and residual lightning energy, installed in distribution boards downstream of the service entrance.
It is the maximum continuous operating voltage (Uc) the SPD can withstand without conducting.
Yes – 385V Uc is the standard rating for 400V three-phase distribution.
A status window shows green when healthy and red when the module needs replacement.
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