Surge Protection
FAQs — B2B SPD Questions Answered

TrilPeak manufactures a complete range of surge protective devices (SPDs) for AC power, DC power, and signal lines — all CE certified and IEC 61643-11 type tested. Our core product families include:

• AC Surge Protectors — single-phase (230V) and three-phase (400V/690V), Type 1, Type 2, Type 1+2, and Type 3
• DC Surge Protectors — up to 1,500Vdc for solar PV, EV charging, and BESS systems
• Signal & Network SPDs — Ethernet, RS-485, PoE, coaxial, and CCTV line protection
• Surge Backup Protectors (SCB) — disconnection and backup protection for AC SPDs
• Lightning Protection Systems — ESE air terminals, earth electrodes, and lightning strike counters

All products are available for OEM with custom branding and packaging.

TrilPeak operates a fully integrated, 20,000m² production facility in Yueqing, Zhejiang, with over 25 years of SPD manufacturing experience. Our in-house capabilities span the entire value chain:

• MOV chip manufacturing — in-house metal oxide varistor production for cost control and quality consistency
• Plastic injection moulding — DIN rail enclosures and housing components produced on-site
• Metal stamping — contacts, terminals, and copper busbars
• Semi-automated assembly — controlled torque application and repeatability
• 100% electrical testing — every unit tested before shipment

Quality is governed by ISO 9001, ISO 14001, and ISO 45001, with products type tested to IEC 61643-11 by accredited third-party laboratories.

TrilPeak holds CE certification issued by Ente Certificazione Macchine (ECM), Italy — covering both AC and DC/PV SPD product lines. This is a third-party issued certificate, not a self-declaration, valid across all EU member states.

• CE — LVD 2014/35/EU — type tested to EN IEC 61643-11:2025 (AC) and EN 61643-31:2019 (DC/PV)
• CE — EMC 2014/30/EU — surge immunity and emission compliance
• CB Scheme — IEC 61643-11 international safety testing, recognised in 50+ countries
• RoHS 2011/65/EU — lead-free, compliant for EU market access
• ISO 9001 — Quality Management System
• ISO 14001 — Environmental Management
• ISO 45001 — Occupational Health and Safety

The EU Declaration of Conformity (DoC) is available for all certified models on request, typically sent within 24 hours.

Yes. TrilPeak provides a complete certification document set for EU public procurement tenders, project approvals, and customs clearance:

• ECM-issued CE certificates (PDF download available)
• EU Declaration of Conformity — per model, signed and dated
• IEC 61643-11 type test reports — full laboratory results
• English product datasheets with wiring diagrams
• RoHS compliance statements

All documents are provided free of charge. Contact us with your model number and project specification — our team responds within 24 hours.

Yes. TrilPeak is an experienced OEM and ODM surge protector manufacturer, supplying private-label SPDs to distributors, system integrators, and electrical brands in over 50 countries.

• OEM (Custom Branding) — your logo, label, and packaging on TrilPeak's certified product range. CE documentation can be issued in your company name where applicable.
• ODM (Full Custom Design) — we develop new SPD models from your specifications with custom voltage ratings, form factors, or housing designs.
• Custom packaging — retail box, colour carton, blister pack, or neutral packaging
• Custom documentation — datasheets, installation manuals, and CE paperwork in your branding

Yes. We strongly encourage sampling before bulk orders. Our standard sample process:

• Standard catalogue samples — typically available within 3–5 business days
• OEM branded samples — typically 10–15 business days depending on label and packaging artwork
• Custom ODM samples — timeline depends on tooling and engineering requirements

Sample costs may apply but are often credited against your first bulk order. Contact our sales team with the specific models and quantities you require.

MOQ varies by product and configuration. As a factory-direct manufacturer, we offer flexibility that distributors cannot:

• Standard catalogue products — MOQ typically starts at 100 pcs per model
• OEM branded products — MOQ typically starts at 500 pcs for label changes
• Trial / evaluation orders — smaller quantities considered on a case-by-case basis for new clients

Contact us with your product list and annual forecast for a tailored quotation.

We accept the following payment methods for international B2B orders:

• T/T (Telegraphic Transfer) — standard for most orders; typical terms are 30% deposit, 70% before shipment
• L/C (Letter of Credit) — available for larger orders from established buyers
• Western Union — for smaller orders
• PayPal — available for sample and small orders

Payment terms are negotiable for long-term partners and high-volume orders.

Yes. All TrilPeak surge protective devices are covered by a manufacturer's warranty against defects in materials and workmanship. Warranty duration varies by product line — please contact us for the specific terms applicable to the model you are interested in.

Warranty coverage includes product replacement or repair for confirmed manufacturing defects. It does not cover damage caused by improper installation, operation outside specified parameters, or direct lightning strike events beyond the device's rated impulse discharge capacity.

OEM products can be supplied with warranty documentation under your brand name.

Lead times depend on the product type and order size:

• Standard catalogue products — 2–3 weeks for in-stock items; 3–5 weeks for production runs
• OEM branded products — 4–6 weeks including label and packaging preparation
• Custom ODM products — typically 8–14 weeks for new product development

We handle end-to-end logistics and work with established freight partners for both air and sea shipment. We can ship DDP, FOB, CIF, or EXW depending on your preference. We export to over 50 countries across Europe, the Middle East, Southeast Asia, South America, and Africa.

TrilPeak exports to 50+ countries across Europe, the Middle East, Southeast Asia, South America, and Africa. Our CE certification makes us a natural fit for European Union buyers requiring full regulatory compliance documentation.

To place an order or request a quotation:

• Use the contact form on our website
• Email us at [email protected]
• Call or WhatsApp: +86-18072102135

Our sales team will respond with a detailed quotation within 24 hours.

Our engineering team provides pre-sales and post-sales technical support for all TrilPeak products:

• Product selection — use our SPD Selector Tool or contact our engineers for complex multi-zone projects
• System design review — we can review your single-line diagram and recommend SPD types per IEC 61643-11
• Installation guidance — wiring diagrams and installation notes included with all products
• Troubleshooting — remote support via email or WhatsApp
• On-site support — available for large-scale projects by arrangement

Technical responses are typically provided within 24 hours on business days.