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Poleline Spool Clevis · 3-1/4" W x 3" L · Galvanized Steel (Insulator Extra) · Hydel 314CLU
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Porclean Spool Insulator · Standard Size · 3 in x 3-1/8 in · Hydel 355WSPG
SKU: 355WSPG
Standard-size spool insulator for clevis and secondary distribution hardware in overhead pole line applications. Manufacturer catalogue data lists a 3 in length x 3-1/8 in width body, grey porcelain construction, 5/8 in pin diameter, and nominal 12 kV vertical / 15 kV horizontal class for utility use.
What this product is for
The Hydel 355WSPG is a standard-size grey porcelain spool insulator used in overhead secondary and pole line hardware assemblies where a spool-style insulator is required.
Use for
- Secondary distribution and service hardware
- Clevis-mounted spool insulator applications
- Utility and contractor overhead line maintenance
- Replacement of standard-size porcelain spool insulators
Avoid for
- Applications requiring a different insulator profile or mounting style
- Installations where polymer or higher-voltage insulator classes are specified
- Use without confirming hardware fit, pin diameter, and utility standard
Best for
Best for utility buyers and line contractors needing a standard porcelain spool insulator with published Hydel catalogue dimensions for existing pole line hardware systems.
Installed in
Typically installed on overhead distribution structures, service entrances, and pole-mounted secondary hardware assemblies. Fit should be confirmed against the clevis, pin size, and utility construction standard before ordering.
Why this product exists
This product provides electrical isolation and mechanical support in compact overhead hardware assemblies using a standard spool insulator format. Porcelain spool insulators remain common where utilities and contractors need compatibility with established line hardware designs.
Compared with similar products
Compared with smaller spool insulators, this standard-size model has a larger 3 in x 3-1/8 in body and a 5/8 in pin diameter. Hydel catalogue data identifies it as a nominal 12 kV vertical / 15 kV horizontal class unit, making it suitable where that class and geometry are required. Always match the insulator to the specified hardware and line design.
Specifications
- Brand: Hydel
- Manufacturer part number: 355WSPG
- Product type: Spool insulator
- Series / family: WSPG
- Size: Standard
- Material: Porcelain
- Colour: Grey
- Length: 3 in (76 mm)
- Width: 3-1/8 in (79 mm)
- Pin diameter: 5/8 in (16 mm)
- Nominal class: 12 kV vertical / 15 kV horizontal
- Flashover, dry: 25 kV
- Flashover, wet: 12/15 kV
- Typical application: Pole line and secondary distribution hardware
- Country context: Made in Canada listing applies in source cataloguing
Minimum Order $20
We accept the following payment methods:
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Click here for Contractor Credit Account 
Standard Shipping-Free on orders over $500 in Metropolitan Areas / Subject to $750 in Rural Areas.
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998(Updated August 2026)
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.
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