Manufacturing Capability for AC, DC, Signal Line SPDs and SCBs

Cresin supports production, testing, OEM customization, packaging and project-based supply for surge protection device customers.

Manufacturing Support

01    AC, DC PV and Signal SPD Production

02  Standard Model and Project Order Supply

03 OEM Label and Packaging Support

04 Quality Inspection before Shipment

SPD Product Categories

Large-scale factory, complete R&D system, global marketing channels, strict quality control system.

SPD Specific Disconnector

AC Power SPD

Equipped with overcurrent, overheat temperature control trip devices, and fault failure indication.

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Solar Photovoltaic

Solar PV DC & AC SPD

Extremely large flow capacity, suitable for outdoor photovoltaic scenarios with severe lightning strikes.

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Signal Protection

Signal & Data SPD

For RS485, RJ45, telecom, data line and industrial control signal protection.

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Power Supply

DC Power SPD

Plug-and-play modular structure design, no power outage required for module replacement after failure.

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New Energy

Wind Power

Standard remote signal alarm interface, design of intelligent remote monitoring for wind power system.

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Specialized SPD

PT / VT Secondary Grounding SPD

CSMS-PVT60/FM is equipped with a unique dual-break protection device, featuring both thermal and overload protection.

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Signal Protection

CCTV & Security SPD

Low residual voltage, high power bearing capacity, large current capacity and fast response speed.

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Electric Vehicles

EV Charging Station SPD

35mm standard rail installation, simple installation and convenient maintenance.

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SPD Specific Disconnector

Surge Circuit Breaker

SCB can provide professional backup protection for first-level, second-level, third-level, etc. power SPDs.

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Production and Delivery Capability

Multiple process quality inspections, efficient delivery and stable quality. Special personnel conduct full-process tracking and synchronously monitor the delivery progress, ensuring efficient and stable supply of goods to overseas customers.

Production Capacity


Large-scale production base

Quality Pre-Control


Multiple verification nodes

Delivery Schedule control


Comprehensive order management

Logistics Support


Follow through the entire process

Key Manufacturing Process

From the incoming material inspection, the precise processing of conductive copper parts, the sorting and pairing of lightning protection chips, the welding and sealing of the integrated internal core, to the modular assembly of the entire machine and the laser marking and forming process, every step is carried out by our own team.

1

Material Preparation

Component preparation, housing preparation, terminal preparation and material inspection.

2

Module Assembly

SPD module assembly, disconnector structure assembly and internal part matching.

3

Testing & Inspection

Electrical inspection, appearance inspection, marking and batch quality control.

4

Packaging & Delivery

Labeling, packaging customization, export cartons and shipment preparation.

OEM and Customization Capability

Cresin supports OEM and project-based customers with labeling, packaging and product documentation support.

Logo and label customization

Package and carton customization

English datasheet and product catalog support

Model selection based on voltage and application

Mixed model order support for distributors

OEM and Customization Capability

Quality Control Before Shipment

Stage Inspection Focus Purpose
Incoming Inspection Components, housing, terminals and key materials Reduce material-related quality risks
Process Inspection Assembly, marking, structure and appearance Control quality during production
Final Inspection Electrical performance, labeling, packaging and quantity Ensure order consistency before shipment

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Address: No. 978 Tianchen Road, High-tech Zone, Jinan, Shandong,China

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The product range includes production technologies for smart capacitors, digital display meters, surge protectors, dedicated backup protection devices for surge protectors, self-resetting over/under-voltage protectors, control and protection switches, and automatic transfer switches for dual power supplies.

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