Other products

SYM Cable®
UL758 Style 2501(105°C 600V)
UL758 Style 2517(105°C 300V)

Overview

This is a motor drive cable featuring a proprietary cable structure (patent pending) that significantly reduces the effects of conducted noise caused by inverter switching.

Features

Although non-shielded, it delivers noise resistance equivalent to shielded cables (noise reduction effect).
Achieves approximately 15% smaller outer diameter and approximately 20% lighter weight than shielded cable (VCT-SB).
More flexible than general cabtyre cables (VCT), providing easier handling during installation.
Noise resistance is achieved simply by collectively connecting the drain wire to ground; no troublesome shield processing is required, making termination work easy.
To meet FA applications that demand high flex reliability, we offer a lineup of cables for moving applications.
Leveraging the cable structure, these cables provide excellent flex durability.
Environmentally friendly product; compliant with the RoHS Directive.

Applications

Ideal as a drive cable for motors controlled by inverters.
In addition to motor-drive applications, it can also be used for noise countermeasures in various inverter-controlled equipment. (For CNC applications, it is intended exclusively for FANUC Corporation CNC systems.)
Suitable for supplying power to equipment such as inverter-controlled motor drives, elevators, pumps, air-conditioning/HVAC units, machine tools, robots, and material-handling/transfer equipment.

Performance

By reducing the impedance between the power conductors and ground (shield), noise current flows more readily to ground, improving noise resistance (= noise current collection effect).

Item	Conventional product (1) VCT (unshielded)(*1)	Conventional product (2) VCT-SB (shielded)(*2)	SYM cable®
Power line-to-ground (shield) impedance (Ω)	110	54	55
Noise current collection efficiency (reference value) (*3)	0.5	1	1

*1 : Vinyl cabtyre cable
*2 : Shielded vinyl cabtyre cable
*3 : Degree to which noise current can be collected to ground

Movement performance

Sliding bending	10 million times or more (Bend radius : Approximately 10 times the cable’s outer diameter)
Swinging	10 million times or more (Bend radius : Approximately 3 times the cable’s outer diameter)

* : OKI Electric Cable's test conditions and test methods are used. These data are for reference only and are not guaranteed values.

Product Codes and Lineup

Cable type	Product code	Cores		Drain wire	Finished cable
Cable type	Product code	Conductor size(mm2)	Insulation Outer diameter(mm)	Size(mm2)	Outer diameter(mm2)	Packing	Approx. mass(kg/km)
Fixed part	SYM 3×0.75SQ (2501)	0.75	2.8	0.25	10	100 m coil	120
	SYM 3×1.25SQ (2501)	1.25	3.1	0.43	11		150
	SYM 3×2SQ (2501)	2	3.4	0.76	11.5		180
	SYM 3×3.5SQ (2501)	3.5	4.2	1.27	13	100 m drum	280
	SYM 3×5.5SQ (2501)	5.5	5.1	2	15.5		390
	SYM 3×8SQ (2501)	8	6.1	2.7	17.5		530
Moving part	SYM-F 3×0.75SQ (2501)	0.75	2.9	0.27	10	100 m coil	125
	SYM-F 3×1.25SQ (2501)	1.25	3.2	0.42	11		160
	SYM-F 3×2SQ (2501)	2	3.6	0.67	11.5		200
	SYM-F 3×3.5SQ (2501)	3.5	4.3	1.2	13	100 m drum	280
	SYM-F 3×5.5SQ (2501)	5.5	5.4	1.9	15.5		400
	SYM-F 3×8SQ (2501)	8	6.3	2.7	17.5		560

Cable type	Product code	Cores		Drain wire	Finished cable
Cable type	Product code	Conductor size(mm2)	Insulation Outer diameter(mm)	Size(mm2)	Outer diameter(mm2)	Packing	Approx. mass(kg/km)
Fixed part	SYM 3×0.2SQ (2517)	0.2	1.1	0.09	4.8	100 m coil	30
	SYM 3×0.3SQ (2517)	0.3	1.3	0.14	5.1		35
	SYM 3×0.5SQ (2517)	0.5	1.6	0.18	5.8		50
	SYM 3×0.75SQ (2517)	0.75	1.9	0.25	6.5		60
	SYM 3×1.25SQ (2517)	1.25	2.3	0.43	7.4		90
Moving part	SYM-FE 3×0.2SQ (2517)	0.2	1.0	0.08	4.5	100 m drum	30
	SYM-FE 3×0.3SQ (2517)	0.3	1.3	0.1	5.1		35
	SYM-FE 3×0.5SQ (2517)	0.5	1.6	0.2	5.8		50
	SYM-FE 3×0.75SQ (2517)	0.75	1.7	0.27	6.0		60
	SYM-FE 3×1.25SQ (2517)	1.25	2.1	0.42	6.9		90

Specifications and Construction

UL StyleTYLE No.2501 105℃ 600V

Cable type	Fixed wiring	Movable wiring
Safety standards	UL Style No.2501	UL Style No.2501
Rated temperature and voltage	105℃,600V	105℃,600V
Operating ambient temperature	0℃～50℃	0℃～50℃
Storage ambient temperature	-30℃～60℃	-30℃～60℃
Environmental compliance	RoHS compliant	RoHS compliant
Cross-sectional view

* Depending on the cable size, fillers may be omitted.

UL StyleTYLE No.2517 105℃ 300V

Cable type	Fixed wiring	Movable wiring
Safety standards	UL Style No.2517	UL Style No.2517
Rated temperature and voltage	105℃,300V	105℃,300V
Operating ambient temperature	0℃～50℃	0℃～50℃
Storage ambient temperature	-30℃～60℃	-30℃～60℃
Environmental compliance	RoHS compliant	RoHS compliant
Cross-sectional view

* : Depending on the cable size, fillers may be omitted.

Termination Method

①Gather the three ground (earth) wires at the center of the cable.
②Evenly twist the three ground (earth) wires together.
③To prevent the twisted ground (earth) wires from unraveling, protect and insulate them with insulating tape or heat-shrink tubing.