Spiral Screw On Wire Connector Tool-Free Insulated Twist Wire End Cap
Product Basic Information
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Item
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Specification
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Product Series
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Spiral Screw On Wire Connector:
SP1, SP2, SP3, SP4, SP5.
HP11, HP12, HP13, HP14, HP16.
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Material
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Flame retardant Nylon PA66 shell + High strength galvanized carbon steel spiral spring
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Certification
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CE, RoHS, TUV, UL, REACH
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Rated Voltage
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600V
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Temperature Range
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-40°C ~ 105°C
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Type
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Tool-free spiral twist wire splicing end cap
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Wire Range
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0.5mm² – 2.5mm² (SP1/HP1 universal matching)
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Features
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Built-in spiral spring locking, tool-free installation, firm wire clamping, flame retardant insulation, anti-loose & anti-oxidation
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Application
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Lighting wiring, household electrical circuits, junction box hidden wiring, indoor low-voltage wire splicing
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Product Description
SP1 and HP1 series screw on wire connectors are upgraded spiral twist type wire end caps, widely used for fast and safe low-voltage wire splicing. Different from ordinary crimp terminals, these connectors adopt a built-in high-strength galvanized carbon steel spiral spring structure, which can tightly lock multi-strand or single-strand wires during manual twisting, ensuring zero loose contact and stable electrical conduction.
The outer shell is made of UL-approved flame retardant PA66 nylon material, featuring excellent high temperature resistance, aging resistance and insulation performance. The fully enclosed structure effectively isolates live wire joints, preventing electric leakage, short circuit, dust and moisture intrusion, greatly improving wiring safety. HP1 model adopts optimized double-wing spiral structure with larger contact area and stronger clamping force, suitable for more stable heavy-load wiring scenarios compared with standard SP1 type.
No professional crimping tools are required, just strip wire insulation, twist wires together and screw on the connector tightly to complete wiring. Compact size saves installation space, simple operation greatly improves construction efficiency. Durable and reusable, fully compliant with international industrial safety and environmental standards, ideal for indoor household and commercial electrical wiring.
Product Features
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Tool-Free Spiral Installation：No crimp tools needed, manual twisting assembly, fast and convenient wire splicing
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Built-In Reinforced Spiral Spring：High-strength galvanized steel spring, strong clamping force, anti-loose and anti-disconnection
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Flame Retardant PA66 Shell：UL certified flame retardant material, high temperature resistant, safe insulation and anti-aging
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SP1 & HP1 Dual Specifications：Standard SP1 for conventional wiring, upgraded HP1 double-wing spiral for higher stability
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Stable Conductive Performance：Large contact area, low contact resistance, no virtual connection for long-term power transmission
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Fully Enclosed Safety Design：Dustproof, moistureproof and leakage-proof, effectively protect wire joints
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Wide Wire Compatibility：Suitable for single-core, multi-core, stranded wires within 0.5-2.5mm²
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Full Global Certifications：Meet overseas market access and electrical safety standards
Application Scope
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Indoor household low-voltage power wire continuation and splicing
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LED lighting lamps and lanterns internal wire connection
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Junction box hidden wiring and closed wire joint processing
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Small household electrical appliances internal circuit connection
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Office and commercial building indoor electrical renovation wiring
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Low-voltage weak current circuit end sealing and fixing
Installation Steps
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Strip appropriate length of insulation from the wire ends and tidy up the copper cores;
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Twist multiple wire cores tightly together to ensure no scattered strands;
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Align the spiral wire connector with the wire end and twist clockwise tightly;
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Stop twisting when the connector is fully fixed to complete insulated sealing connection.
Precautions
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Select SP1 or HP1 model according to wire gauge and wire quantity to match actual wiring demand;
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Ensure wire cores are fully twisted and inserted in place to avoid poor contact;
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Do not over-twist violently to prevent cracking of the nylon insulating shell;
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Suitable for indoor dry environments only, not applicable for outdoor exposed or humid corrosive scenarios;
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Do not exceed the rated 600V voltage to avoid safety hazards.