Pin insulators

At Winwin Speciality Insulators (WSI) , we’re dedicated to the precision manufacturing of Pin Insulators, all meticulously crafted in strict compliance with ANSI standards. Our commitment to quality and innovation shines through in every product we create.

Our Diverse Applications

Small and Large Steel Head Pins

WS Pin Insulators are available with both small and large steel head pins, in line with ANSI C29.5 and C29.6 standards. This flexibility ensures that WS products can be tailored to your unique requirements.

Voltage Range 7.2 kV to 33 kV

We offer a wide variety of Pin Insulators, covering the voltage range from 7.2 kV to 33 kV. This comprehensive range ensures that we have the right solution for your electrical distribution line, whether it's lower or higher voltage.

Customized Solutions

Beyond our standard offerings, we're proud to offer custom Pin Insulators designed to meet your specific needs. We understand that each project is unique, and we're here to provide tailored solutions.

WSI Product Range

Designation Units WS-PI-11-001 WS-PI-11-002 WS-PI-11-003 WS-PI-11-004
Rated Voltage KV kV 11 11 11 11
Cantilever Strength kN 10 10 10 10
Maximum Diameter (D) mm 143 181 181 175
Maximum Height (H) mm 113 121 121 185
Total Creepage Distance mm 230 320 320 380
Thimble Size - Small Small Large Large
Low Frequency Dry Withstand kV 60 70 70 75
Low Frequency Wet Withstand kV 30 30 30 45
Low Frequency Dry Flashover kV 70 75 75 80
Low Frequency Wet Flashover kV 40 45 45 50
Impulse Withstand Positive kV 90 100 100 110
Impulse Withstand Negative kV 90 100 100 110
Impulse Flashover Positive kV 110 110 110 120
Impulse Flashover Negative kV 130 130 130 140
Puncture Voltage kV 95 115 115 120
RIV Test Voltage kV 8 8 8 8
RIV - plain ?V 5000 5000 5000 5000
RIV - radio freed ?V 100 100 100 100
Corona Extinction Voltage kV 8 8 8 8
Net Weight (approximate) kg 2 3 3 3.5
Drawings are ‘not to scale’
Values specified are only for informative purpose. Please send enquiries to get specific product details.
Designation Units WS-PI-22-001 WS-PI-22-002 WS-PI-22-003 WS-PI-22-004 WS-PI-22-005
Rated Voltage KV kV 22 22 22 22 22
Cantilever Strength kN 10 10 10 10 10
Maximum Diameter (D) mm 195 235 235 276 180
Maximum Height (H) mm 185 159 185 198 225
Total Creepage Distance mm 440 440 500 585 600
Thimble Size - Large Large Large Large Large
Low Frequency Dry Withstand kV 80 80 85 90 90
Low Frequency Wet Withstand kV 50 50 55 60 60
Low Frequency Dry Flashover kV 90 90 95 110 110
Low Frequency Wet Flashover kV 55 55 60 70 70
Impulse Withstand Positive kV 125 125 125 125 125
Impulse Withstand Negative kV 125 125 125 125 125
Impulse Flashover Positive kV 135 135 140 140 140
Impulse Flashover Negative kV 140 150 155 160 160
Puncture Voltage kV 130 130 130 140 140
RIV Test Voltage kV 15 15 15 15 15
RIV - plain ?V 8000 8000 8000 8000 8000
RIV - radio freed ?V 200 200 200 200 200
Corona Extinction Voltage kV 15 15 15 15 15
Net Weight (approximate) kg 5.5 4.5 5.5 7.5 5.5
Drawings are ‘not to scale’
Values specified are only for informative purpose. Please send enquiries to get specific product details.
Designation Units WS-PI-33-001 WS-PI-33-002 WS-PI-33-003
Rated Voltage KV kV 33 33 33
Cantilever Strength kN 10 10 10
Maximum Diameter (D) mm 310 310 310
Maximum Height (H) mm 238 258 258
Total Creepage Distance mm 720 840 990
Thimble Size - Large Large Large
Low Frequency Dry Withstand kV 110 110 110
Low Frequency Wet Withstand kV 80 80 80
Low Frequency Dry Flashover kV 140 140 140
Low Frequency Wet Flashover kV 90 90 90
Impulse Withstand Positive kV 150 150 150
Impulse Withstand Negative kV 150 150 150
Impulse Flashover Positive kV 220 220 220
Impulse Flashover Negative kV 240 240 240
Puncture Voltage kV 150 150 150
RIV Test Voltage kV 22 22 22
RIV - plain ?V 12000 12000 12000
RIV - radio freed ?V 200 200 200
Corona Extinction Voltage kV 22 22 22
Net Weight (approximate) kg 12.5 13.5 14.5
Drawings are ‘not to scale’
Values specified are only for informative purpose. Please send enquiries to get specific product details.

Why Choose WSI Pin Insulators

At WSI, we don’t just meet industry standards; we surpass them. Our commitment to excellence, precision engineering, and customer satisfaction has made us the preferred choice for Pin Insulators. When you choose WSI, you’re choosing a trusted partner for all your pin insulator needs.

  • QUALITY ASSURANCE

    WSI Pin Insulators undergo rigorous quality checks to ensure their reliability and performance.

  • INNOVATION

    WSI stay at the forefront of insulator technology, providing cutting-edge solutions for your electrical distribution needs.

  • CUSTOMIZATION

    WSI understand that your project may have unique requirements. WS team is here to work with you and create the ideal Pin Insulator for your application.

  • RELIABILITY

    Count on WSI to deliver Pin Insulators that offer long-lasting performance and dependable service in your electrical distribution systems.

Learn About our World of Product

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