Company Overview

Ningbo SUPU Electronics Co., Ltd., established in 1999, is a global supplier specializing in electrical connection solutions across four segments: electrical cabinet connection, electrical device connection, electrical field connection, and customized products. The company integrates R&D, production, sales, and services with a strong focus on innovation and technology foresight. SUPU’s technical center employs over 160 experts and holds multiple national patents including Cage Spring and PUSH-IN Spring Connection Technologies. In 2022, SUPU launched a digital factory emphasizing lean manufacturing to enhance efficiency, quality, and delivery. The company is certified under ISO9001, ISO14001, ISO45001, ISO22163, and IATF16949 standards, serving industries such as intelligent buildings, industrial automation, power transmission, new energy, and rail transit.

Enterprise Culture and Vision

• Mission: To be a model in the global electric industry.
• Core Values: Diligence, Innovation, Self-seeking, Altruism.
• Quality Policy: Pursuit of lean quality, continuous improvement, exceeding customer expectations, and brand building.
• Staff Welfare: Promoting material and spiritual happiness, enterprise value, and societal progress.
• 2024 Goals: Systematic target management, digital and efficient operations, and solid management constitution.

Product Range and Catalogue

SUPU offers a broad range of industrial electrical connectors and components including industrial switch interface modules, circular connector blocks, heavy-duty connectors, rail-mounted terminal blocks, and industrial relay PCB connectors. The catalogue provides detailed sections on cable glands, hoods, male/female inserts, crimp contacts, housings, tools, and accessories, along with installation diagrams, selection guides, connection modes, and enclosure protection classes.

Connection Technologies and Features

• Screw Connection: Widely used, simple, reliable, supports wiring cores from 6 to 48 plus PE.
• Crimp Terminal: Enables pre-installation, corrosion-resistant, supports wiring cores from 7 to 926 plus PE.
• Cage-Clamp Connection: Tool-free wiring, vibration resistant, wiring cores 6 to 48 plus PE.
• Plug-in Cage-Clamp: Allows live installation, simple maintenance, wiring cores 6 to 48 plus PE.

Connectors include shells, sealing pads, and lock catches to protect against dust, water, oil, and moisture. Shell sizes correspond to series and current ratings.

Technical Specifications and Standards

• Rated Voltage: Up to 500V depending on series.
• Rated Current: 5A to over 100A depending on connector type.
• Pollution Degree: Typically Pollution Degree 2.
• Flammability: UL94 compliant materials.
• Insulation and Contact Resistance: High reliability standards.
• Materials: Polycarbonate housings; copper alloy contacts with silver or gold plating.
• Mechanical Life: Defined mating cycles per DIN EN 61984 and DIN EN 60512-5.
• Connection Types: Screw, crimp, cage-clamp, push-in.

Product Series and Inserts

• SA Series: Small core slim inserts rated 10A-16A, screw and cage-clamp options.
• SE Series: Standard inserts up to 16A and 32A, supporting multiple connection types.
• SEE Series: Extended options with higher current ratings.
• SD, SDD, SQ Series: Cold pressing crimp terminals for large wiring cores.

Each series includes detailed part numbers, plating options (silver/gold), wire gauge compatibility, and recommended crimping/removal tools.

Tools and Accessories

• Crimping tools for wire gauges 0.5 to 4.0 mm² (AWG 20-12).
• Removal tools for cold pressing needles and crimp terminals.
• Accessories such as cable glands with various sealing and locking options.

Installation and Protection

Installation guides detail housing mounting dimensions, pin types, and connection modes. Enclosure protection classes ensure suitability for harsh environments. Connectors feature gold or silver plating for conductivity and corrosion resistance. Wire cross-section and tightening torque specifications ensure secure connections.

Connector Series Overview

• Connector inserts include standard, high-density, and ultra-high-density types with rated voltages of 250V or 500V and currents of 10A or 16A.
• Contacts are copper alloy with hard-gold or hard-silver plating.
• Wire gauges range from AWG 20 to 12 with specified strip lengths.
• Connection modes include crimp, screw, cage-clamp, and plug-in cage-clamp.
• Shell sizes range from 3A to 48B, supporting various insert models and contact densities.
• Crimping and removal tools are specified per series, supporting wire diameters 0.5mm to 4.0mm.
• Contact resistance requirements: ≤1mΩ for 16A series, ≤3mΩ for 10A series.

Technical Characteristics and Standards

• Current load capacity limited by plug-in body and pin temperature.
• Testing per DIN EN 60512-5; rated voltage per DIN EN 61984 and UL/CSA certifications.
• Pollution degree 2 applicable; materials comply with UL94 flammability.
• Mechanical life specified by mating cycles.

Performance Data

Graphs and tables illustrate current versus ambient temperature for wire diameters 0.75mm² to 4.0mm² across series such as SD and SDD, showing current ratings vary with wire gauge and temperature.

Hoods and Housings

• Available types include side entry, top entry, bulkhead mounting, surface mounting, cable-to-cable, and high construction variants.
• Cover materials include metal and plastic options.
• Protection grades up to IP65.
• Part numbers and thread sizes (metric M25, M32, M40, M50 and PG21, PG29, PG36, PG42) are provided.

Technical Parameters and Materials

• Plastic cable glands made of nylon with NBR sealing elements.
• Protection level IP68, temperature range -40°C to 100°C static, -20°C to 80°C dynamic.

Additional Components and Tools

• Crimping wire diameters 0.5 to 4.0 mm (AWG 20-12).
• Cold pressing needles for 10A, 16A, and 40A with specific order numbers.
• Base PG tools for cold crimping pins supporting 5A, 10A, and 16A ratings.

Critical Information Summary

• Match shell size and insert model to application requirements.
• Use specified crimping tools and needles to maintain contact resistance and reliability.
• Observe rated voltage, current, and temperature limits for safe operation.
• Follow DIN EN 60512-5 and DIN EN 61984 standards for testing and certification.
• Select appropriate housing and protection grade based on environment.

Summary

Ningbo SUPU Electronics Co., Ltd. is a technologically advanced manufacturer of industrial electrical connectors emphasizing innovation, quality, and customer-centric solutions. Their extensive product range covers multiple connection technologies and current ratings, supported by comprehensive technical documentation, tools, and accessories. Commitment to lean manufacturing and quality certifications ensures reliable products for diverse industrial applications.