SP Series Color-Coded Screw-On Wire Connectors

YOCL Electric SP screw-on wire connectors join electrical conductors with insulated, color-coded twist-on housings.

Nylon 66 housing with an internal galvanized spring-steel element.
Five models: SP1 gray, SP2 blue, SP3 orange, SP4 yellow and SP6 red.
Model-specific conductor combinations listed in mm² × conductor count.
Operating temperature -20°C to +100°C.
Twist-on connection with no crimping required.

Overview

YOCL Listrik SP Series Color-Coded Screw-On Wire Connectors join two or more electrical conductors using a twist-on connection. Each connector combines a Nylon 66 insulated housing with an internal galvanized spring-steel element.

The spring grips the prepared conductors as the connector is twisted into position. Five models use gray, blue, orange, yellow and red housings to distinguish sizes. SP connectors are suitable for general electrical wiring, building installations and electrical equipment within the specified -20°C to +100°C operating range.

Features

Screw-on connection: Joins conductors by twisting the connector into position.
Nylon 66 insulation: Surrounds the internal connection with a molded insulating housing.
Galvanized spring steel: Provides the internal conductor-gripping element.
Color-coded models: SP1 gray, SP2 blue, SP3 orange, SP4 yellow and SP6 red.
No crimping required: Uses a twist-on connection method.
Model-specific conductor combinations: Listed minimum and maximum combinations use mm² × conductor count.

Technical Specifications

Parameter	Specification
Brand	YOCL Listrik
Series	SP
Product type	Screw-on / twist-on wire connector
Insulation material	Nylon 66
Internal connection element	Spring steel
Spring surface treatment	Galvanized
Connection method	Screw-on / twist-on
Number of conductors	Two or more, depending on model and conductor combination
Conductor combination notation	Conductor cross-section (mm²) × conductor count
Operating temperature	-20°C to +100°C
Models	SP1 / SP2 / SP3 / SP4 / SP6
Number of listed models	5
Crimping required	No

Conductor Combinations

Model	Listed minimum combination (mm² × count)	Listed maximum combination (mm² × count)	Color
SP1	0.75 × 1 + 0.5 × 1	1.5 × 2	Gray
SP2	0.75 × 3	1.5 × 3	Blue
SP3	0.75 × 3	1.5 × 3 + 1 × 1	Orange
SP4	0.25 × 1 + 0.75 × 1	2.5 × 4 + 0.75 × 1	Yellow
SP6	0.25 × 2	6 × 2 + 4 × 2	Red

Each term gives the conductor cross-section in mm² followed by the number of conductors. A plus sign joins groups of different conductor sizes.

Dimension

Model	ØB (mm)	ØC (mm)	Length L (mm)	Color
SP1	8.5	6.5	15.0	Gray
SP2	10.1	7.8	17.5	Blue
SP3	12.8	9.6	21.7	Orange
SP4	13.8	10.7	24.0	Yellow
SP6	15.6	13.8	26.5	Red

All dimensions are in millimetres. ØB, ØC and L retain the dimensional symbols for this series. Colors are assigned to specific models.

Selection Guide

Select the connector using the listed conductor cross-sections and quantities together with the model’s dimensions. For example, SP3’s listed maximum combination, 1.5 × 3 + 1 × 1, means three 1.5 mm² conductors plus one 1 mm² conductor.

Use the model-specific combinations when selecting a connector. Housing color identifies the model: gray for SP1, blue for SP2, orange for SP3, yellow for SP4 and red for SP6.

Aplikasi

Building and lighting wiring.
Residential and commercial electrical installations.
Electrical equipment and control wiring.
Wire splicing in junction boxes.

Ordering Information

Specify the required SP model, conductor combination and quantity when making an enquiry to YOCL Electric. Housing colors are gray for SP1, blue for SP2, orange for SP3, yellow for SP4 and red for SP6.