3-Phase Surge Protector Industrial 400V SPD | Factory-Direct Wholesale
Type 1, Type 2 & Type 1+2 three-phase surge protectors — IEC 61643-11 CE certified for industrial and commercial 400V systems. TN-S, TT, TN-C & IT earthing. 50kA Iimp to 40kA Imax. DIN rail. Factory-direct wholesale to distributors, EPC contractors & OEM brands. Quote & CE documents within 24h. Part of the TrilPeak SPD range.
3-Phase Surge Protector Types — Type 1, Type 2 & Type 1+2 for 400V Industrial Panels
3-phase surge protectors are classified by IEC 61643-11 based on installation position and surge energy level. Select the right type first — then select the product. Full comparison guide →
Mandatory at the main service entrance when an external LPS is present or supply is via overhead lines. Handles direct partial lightning current — the highest energy event in the protection cascade.
Standard installation at every MDB and MCC per IEC 60364-5-53. Handles induced surges and switching transients from VFDs and motors. The most commonly specified 3-phase surge protector.
Combines Type 1 and Type 2 in one DIN rail module. Eliminates the 10m coordination distance requirement. Ideal for compact industrial panels, retrofit installations, and solar PV inverter boards.
3-Phase Surge Protector Range — TPK Series | All Types In Stock
All models CE certified by ECM Italy · DIN rail · All Uc voltages & pole configurations available · View CE certificate →
Standard 3-Phase Type 2 Surge Protector — MDB & MCC
Required at every distribution board per IEC 60364-5-53
TPK-40 — 40kA 3-Phase Type 2 Surge Protector | Pluggable Industrial
Type 2 · Pluggable Hot-Swap · Commercial & Industrial MDB · IEC 61643-11
The standard 3-phase surge protector for commercial MDBs, industrial panels, VFD installations, data centres, and solar PV AC output boards. 40kA Imax (8/20µs) with pluggable modular cartridge — hot-swap replacement without disconnecting wiring. Form C remote signalling (NO/NC/COM) for BMS/SCADA integration. Full Type 2 SPD range →
TPK-20 — 20kA 3-Phase Type 2 Surge Protector | Sub-Distribution
Type 2 · DIN Rail · Sub-Distribution & Light Commercial · IEC 61643-11
Standard 3-phase Type 2 surge protector for sub-distribution boards, switching transient defence, and lower lightning risk installations. Compact 18mm per-pole DIN rail profile. All standard pole configurations and Uc voltages in stock. Industrial SPD guide →
3-Phase Type 1 Surge Protector — Direct Lightning Protection
Mandatory when external LPS present per IEC 62305
TPK-I-50 — 50kA 3-Phase Type 1 Surge Protector | Class I Service Entrance
Type 1 · Class I · 50kA Iimp · All Earthing Systems · IEC 61643-11
Flagship 3-phase Type 1 surge protector for main service entrance panels. 50kA Iimp per pole (10/350µs) handles direct partial lightning current — the highest energy event any SPD must survive. Mandatory per IEC 62305 when an external LPS is installed. Configurations for TNC (3+0), TT/TNS (3+1), and TNS (4+0). Full Type 1 SPD range →
3-Phase Type 1+2 Combined Surge Protector — Space-Saving Class I+II
Eliminates 10m coordination distance requirement
TPK-I-25 — 25kA 3-Phase Type 1+2 Surge Protector | Premium Combined
Type 1+2 · Class I+II · 25kA Iimp · Critical Infrastructure · IEC 61643-11
Premium 3-phase Type 1+2 combined surge protector with 25kA Iimp per pole — replaces separate Type 1 + Type 2 installation in a single DIN rail unit. Eliminates the 10m coordination distance requirement per IEC 61643-12. Ideal for compact industrial panels, retrofit projects, and solar PV AC boards. Full Type 1+2 range →
Full wholesale range — Single-phase SPD, DC / Solar PV SPD, Full AC range.
3-Phase Surge Protector — Earthing System Selection & Installation Cascade
Your earthing system dictates the required pole configuration and Uc voltage. Specifying the wrong configuration causes either under-protection or premature failure. Full selection guide →
| Earthing System | Pole Config | Uc | Key Rule | Recommended Model |
|---|---|---|---|---|
| TN-S | 4P / 3P+N | 275V | N-PE mode essential — prevents neutral-earth potential rise during surge | TPK-40, TPK-I-50 |
| TT | 3P+1 | 320V | Higher Uc essential — prevents TOV trip on TT earth fault | TPK-40, TPK-12.5 |
| TN-C | 3P (3+0) | 255V | Never fit an N-PE module — creates parallel path for earth current | TPK-40, TPK-I-50 |
| IT | 3P+0 / 3P+1 | 385–440V | High Uc + leakage <1mA required — avoids false IMD alarms (hospitals) | TPK-40, TPK-12.5 |
Not sure which earthing system you have? Single vs 3-phase SPD guide → · Use the SPD selector →
TPK-I-50 — mandatory when external LPS is present. Handles 10/350µs direct lightning current, 50kA Iimp per pole.
TPK-40 directly after the main breaker — mandatory at every MDB and MCC per IEC 60364-5-53. Up ≤1.5kV.
Additional Type 2 SPD at sub-boards feeding sensitive loads. ≥10m cable separation from upstream Type 2, or use Type 1+2 combined.
4 Rules Every 3-Phase Surge Protector Installation Must Follow
Getting any of these wrong negates the protection — even if the right model is installed. These apply to every 3-phase surge protector installation. Full installation guide →
Combined L+N+PE connection wire must not exceed 0.5m. Each extra metre adds ~1kV inductive drop during a 10kA surge — directly reducing clamping effectiveness. Use V-wiring topology. Wiring guide →
IEC 60364-5-53 requires a short-circuit protection device in series with every SPD. TPK-20: MCB 63A min. TPK-40: MCB 125A min. Never exceed the maximum SCPD rating. Coordination guide →
IEC 61643-12 requires ≥10m cable between separate Type 1 and Type 2 units, or a ≥10µH decoupling inductor. Without separation the faster Type 2 absorbs energy beyond its rating. Alternative: use Type 1+2 combined SPD.
High earth impedance raises potential of all earthed equipment during a surge, negating clamping. IEC 62305-3 requires ≤10Ω. Measure annually. Earthing accessories →
3-Phase Surge Protector Applications — Match Your Scenario
Every 400V industrial and commercial installation requires at minimum a Type 2 3-phase surge protector at the MDB. Select your scenario below to confirm the right model.
Industrial
Specify: TPK-40 · Type 2
3-Phase Surge Protector for Industrial MDB & VFD Panels
400V MDB, MCC, and VFD panels. TPK-40 40kA Type 2 (3P+N, Uc 275V TN-S) at every distribution board. Pluggable cartridge with NO/NC remote signalling for SCADA.
Industrial SPD Guide →
Commercial
Specify: TPK-40 or TPK-I-15 · Type 2 / 1+2
3-Phase Surge Protector for Commercial Buildings & High-Rise
Office, retail, and high-rise MDB. TPK-40 Type 2 at main distribution board. Where LPS is installed, add TPK-I-15 Type 1+2 at service entrance — no 10m separation required.
Building SPD Guide →
Solar PV
Specify: TPK-12.5 · Type 1+2
3-Phase Surge Protector for Solar PV AC Output
3-phase inverter AC output boards. TPK-12.5 Type 1+2 at inverter AC terminals — single module covers both waveforms, no coordination distance needed. Pair with DC SPD on string side.
Solar SPD Guide →
Data Centre
Specify: TPK-I-50 + TPK-40 · Type 1 + Type 2
3-Phase Surge Protector for Data Centres & Critical Infrastructure
Full cascade: TPK-I-50 Type 1 at service entrance MDB, TPK-40 Type 2 at rack distribution boards with SCADA remote signalling. TN-S 4P configuration, Uc 275V.
Data Centre SPD Guide →Why Distributors & OEM Brands Choose TrilPeak for 3-Phase Surge Protector Supply
Most Chinese surge protection suppliers are trading companies or assembly-only operations. TrilPeak manufactures 3-phase surge protectors end-to-end — in-house MOV varistor production, injection moulding, copper stamping, and 100% per-unit electrical testing. CE certification from ECM Italy — accepted by EU customs and public procurement tenders in 50+ countries.
Third-Party CE Certification
CE certified by ECM Italy (EU notified body) — not self-declaration. Certificate No. 0P260312.YTEUD26, verifiable on the ECM registry. Accepted at EU customs and public procurement tenders without re-testing.
View CE Certificate →In-House MOV Production
TrilPeak produces MOV varistor chips in-house — guaranteeing batch-to-batch clamping voltage consistency. 100% per-unit electrical test before shipment. Third-party inspection (SGS / BV / Intertek) welcomed.
Vertical Integration →OEM & Private Label Programme
Custom logo, rebranded datasheets, EU Declaration of Conformity in your company name. ECM CE certification transfers legally to your brand for all EU market entry and tender submissions. MOQ negotiable, NDA standard.
OEM Programme →7–30 Day Lead Time
Standard stock models ship in 7–14 days. Custom Uc, pole configurations, and OEM branding in 21–30 days. In-house manufacturing eliminates trader lead times. Factory-direct pricing — no middleman markup.
Request Samples →CE certificates, EU DoC, and IEC type test reports available free of charge within 24h. Accepted for EU customs, tender submissions, and project commissioning.
3-Phase Surge Protector — Frequently Asked Questions
How do I select the right pole configuration for my 3-phase surge protector?
TN-S: 4P (4+0) with Uc 275V. TT: 3+1 configuration with Uc 320V — higher Uc is essential to prevent TOV trip. TN-C: 3+0 (no neutral protection) with Uc 255V — never fit an N-PE module. IT systems (hospitals, offshore): 3+0 or 3+1 with Uc 385–440V and leakage <1mA to avoid IMD false alarms. Wrong pole config or Uc causes under-protection or premature SPD failure. Full selection guide →
Why is 10m separation required between Type 1 and Type 2 3-phase SPD?
Without ≥10m cable separation, the faster Type 2 SPD activates before the Type 1 and absorbs the full 10/350µs lightning current impulse — which carries 10–20× more energy than the 8/20µs waveform the Type 2 was rated for, causing immediate failure. Solution: maintain 10m separation, or use a Type 1+2 combined 3-phase SPD which is factory-coordinated internally.
Can a 3-phase surge protector cause RCD tripping?
Yes — if the wrong Uc is selected. A 3-phase surge protector with Uc too close to nominal voltage has higher leakage through the MOV under normal conditions. For TT systems, this leakage may trip a sensitive 30mA RCD. Solution: use Uc 320V (not 275V) for TT systems. For IT systems, verify SPD leakage is <1mA to prevent IMD alarms. Tripping guide →
Do VFDs (variable frequency drives) need 3-phase surge protection?
Yes — VFDs are both victims and sources of surges. They generate high dv/dt switching transients that stress other equipment on the 400V bus, AND their IGBT power electronics are highly vulnerable to incoming surges. Install a Type 2 3-phase surge protector (TPK-40 3P+N) at the VFD panel AC input, and consider a Type 3 SPD at the VFD's control supply terminals. Industrial SPD guide →
Is TrilPeak 3-phase surge protector CE certified?
Yes — third-party CE certification by ECM Italy (EU notified body). Certificate No. 0P260312.YTEUD26, valid to March 2031, covering 25 AC SPD models to IEC/EN 61643-11:2025. This is independent type testing — not self-declaration. Verifiable on the ECM registry. Full CE documentation package available with every wholesale order. View CE certificate →
What OEM options are available for 3-phase surge protectors?
Full OEM package: custom logo on product and packaging, rebranded datasheets, EU Declaration of Conformity in your company name with ECM Italy as Notified Body. Standard wholesale MOQ from 100 units; OEM private-label from 500 units. Mixed-model trial orders available. Samples with CE test reports within 7 days. OEM programme →
3-Phase Surge Protector Selection Guides & Technical References
Essential reading for engineers, panel builders, and procurement teams specifying 3-phase surge protection.
Request 3-Phase Surge Protector Wholesale Pricing & CE Documentation
Share your specifications — earthing type, voltage, pole configuration, Imax requirement, and destination — and our team responds within 24 hours with factory-direct pricing and the full CE documentation package.