Stainless Steel Interlocked (Retractable Type)
Flexible Electrical Conduit, WP-S2 series is manufactured with stainless steel strip by continuous wound in interlock profile. The size range of this series of flexible tube is ID 4.0~16.1mm. It is featured with excellent flexibility and higher tensile resistance. Its miniaturized diameter makes the tube be light and also pressure resistance. That offers benefit to protect wires on constant moving part and in complex or narrow spaces. The bare electrical flexible conduit can be directly used in a controlled environment. For those locations with splash or higher humidity, electrical flexible conduit with plastic jacket is recommended. That offers not only waterproof but also fire retardant. As for the demand of high abrasion resistance or preventing the interference of microwave or static electricity in the environment (EMC shielding), electrical flexible conduit with metal mesh braiding is the proper one to choose.
Specially applicable for protection of signal wire on machine tools, automation system or equipment, robot, access control, security system, etc.
Feature
-
Material:
Stainless Steel Square Lock (Stretched Type) -
Temperature Range：
-40℃~+350℃ -
IP Rating
IP 40 -
Flexibility :
High -
RoHS Compliance :
Yes -
Standard
Follow IEC standard, 2~3 joints are allowed in a length of 100M.
Parameter
| Part Number | ID (mm) | OD (mm) | Bending Radius (mm) | Tensile Resistance (kg) | Scaling Rate (%) | Package/Roll (m) |
|---|---|---|---|---|---|---|
| P040060S2 | 4.0±0.2 | 6.0±0.2 | ≤40 | ≥100 | ＜10% | 200 |
| P046066S2 | 4.6±0.2 | 6.6±0.2 | ≤45 | ≥100 | ＜10% | 200 |
| P050070S2 | 5.0±0.2 | 7.0±0.2 | ≤45 | ≥100 | ＜10% | 200 |
| P054078S2 | 5.4±0.2 | 7.8±0.2 | ≤47 | ≥120 | ＜10% | 150 |
| P059084S2 | 5.9±0.2 | 8.4±0.2 | ≤47 | ≥120 | ＜10% | 150 |
| P062082S2 | 6.2±0.2 | 8.2±0.2 | ≤47 | ≥100 | ＜10% | 150 |
| P066090S2 | 6.6±0.2 | 9.0±0.2 | ≤50 | ≥120 | ＜10% | 150 |
| P070095S2 | 7.0±0.2 | 9.5±0.2 | ≤60 | ≥120 | ＜10% | 150 |
| P080105S2 | 8.0±0.2 | 10.5±0.2 | ≤65 | ≥120 | ＜10% | 100 |
| P095125S2 | 9.5±0.2 | 12.5±0.2 | ≤65 | ≥140 | ＜10% | 100 |
| P125157S2 | 12.5±0.3 | 15.7±0.3 | ≤85 | ≥140 | ＜10% | 100 |
| P145170S2 | 14.5±0.3 | 17.0±0.3 | ≤90 | ≥140 | ＜10% | 50 |
| P150180S2 | 15.0±0.3 | 18.0±0.3 | ≤100 | ≥180 | ＜10% | 50 |
| P161195S2 | 16.1±0.3 | 19.5±0.3 | ≤110 | ≥200 | ＜10% | 50 |
What is the WP-S2 series flexible electrical conduit?
WP-S2 is a small-diameter, stainless steel interlocked flexible conduit, also referred to as a retractable-type conduit. It is manufactured from continuously wound stainless steel strip in interlock profile, offering excellent flexibility and higher tensile resistance in a compact, lightweight form. It is designed to protect signal wires on machine tools, automation systems, robots, access control, and security equipment.
What size range is available in the WP-S2 series?
WP-S2 covers 14 sizes with inner diameter from 4.0 mm to 16.1 mm and outer diameter from 6.0 mm to 19.5 mm. Bending radius scales from 40 mm on the smallest size up to 110 mm on the largest, part number P161195S2.
What is the operating temperature range of WP-S2 conduit?
WP-S2 is rated for -40°C to +350°C, allowing it to be used in both cold outdoor environments and high-temperature industrial settings without loss of flexibility.
Is WP-S2 waterproof, and what is its IP rating?
The bare WP-S2 conduit carries an IP40 rating and is intended for controlled, dry environments. For locations with splash exposure or higher humidity, Kaiflex recommends the WP-S2P1 version, which adds a PVC jacket for waterproof and fire-retardant protection.
What does the tensile resistance and scaling rate mean for WP-S2?
Tensile resistance ranges from 100 kg on the smallest sizes up to 200 kg on the largest, indicating the pulling force the conduit can withstand before deformation. Scaling rate, kept under 10% across the range, measures how much the conduit stretches under axial tension, which matters for applications involving constant movement or cable travel.
Does WP-S2 conduit meet any industry standards?
WP-S2 follows applicable IEC standards for flexible conduit construction. Per the standard, 2 to 3 joints are allowed within a 100-meter length. The material is also RoHS compliant, meeting EU restrictions on hazardous substances.
What applications is WP-S2 conduit suitable for?
Its miniaturized diameter and pressure resistance make WP-S2 well suited to protecting wires on constantly moving parts and in complex or narrow spaces, including machine tools, automation equipment, robotics, access control systems, and security systems.
What other WP-S2 configurations are available besides the bare conduit?
Beyond the bare stainless steel conduit, Kaiflex offers WP-S2P1 with a PVC jacket for waterproofing, WP-S2SB with stainless steel braiding for abrasion resistance and EMC shielding, WP-S2TB with tinned copper braiding, and combined versions such as WP-S2TBP1 and WP-S2P1SB for applications needing both shielding and a protective jacket.
How is WP-S2 conduit packaged and supplied?
Roll length decreases as diameter increases: the smallest sizes (4.0-5.9 mm ID) ship in 200 m rolls, mid sizes (5.4-6.6 mm range and 6.2-7.0 mm range) in 150 m rolls, 8.0-9.5 mm sizes in 100 m rolls, and the largest sizes (14.5-16.1 mm ID) in 50 m rolls.
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