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Extension cords

(24 products)

Where reliable power meets unwavering safety. Our DeWalt, Milwaukee, and Makita extension cords transform impossible distances and limited access into robust connections that power your tools without compromise.

From Quebec construction sites to industrial workshops, equip yourself with cords that transmit electricity with the capacity required by your high-performance equipment.

Because every faulty connection compromises productivity and safety, and your tools deserve the stable power that only certified professional extension cords guarantee in all weather conditions.

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A complete guide to choosing your professional extension cords

What extension cord length should I choose depending on my application?

The length of extension cord needed depends on the distance between the power source and the equipment, while minimizing voltage drop that could compromise performance. Extension cords of 10 to 25 feet are suitable for workshops and garages where wall outlets are readily available near work areas. A minimal voltage drop of 1 to 3% maintains the rated power of tools. Prices range from $15 to $50 for home and light professional use.

50-foot extension cords are the standard on construction sites and outdoor applications requiring extended reach. A 3-5% voltage drop is acceptable for most heavy-duty tools like saws and drills that tolerate minor fluctuations. 12 AWG wire is recommended for 15-amp loads to minimize resistance. An investment of $60 to $150 is justified by its versatility, covering 80% of job site needs. The drum winding design makes transport and storage easy and tangle-free.

100-foot extension cords are ideal for large sites and remote areas inaccessible otherwise. 10 AWG wire is required, limiting voltage drop to 5-7% on maximum loads of 15-20 amps. Prices range from $150 to $250 for heavy-duty industrial construction. Calculate the actual distance: measure the route, including detours around obstacles, and add a 20% safety margin. Avoid excessively long extension cords, which create tripping hazards and unnecessary energy loss.

Polar Industrial Equipment recommends selecting a minimum length sufficient for the specific application.

AWG wire gauge: understanding amperage capacity and safety

The wire gauge, measured in AWG (American Wire Gauge), determines the safe amperage capacity of extension cords. The lower the AWG number, the thicker the wire, allowing it to carry higher current without overheating. 16 AWG extension cords can handle up to 10 amps over 25 feet for light-duty tools such as drills, sanders, and lights consuming 800 to 1200 watts. They are economical, priced from $15 to $40, for occasional home use.

14 AWG extension cords handle 13 amps over 50 feet, powering circular saws, vacuums, and light-duty compressors from 1200 to 1560 watts. Their mid-range construction offers a compromise between flexibility and capacity. Priced from $35 to $80 for moderate residential and commercial use. Minimal overheating occurs during 2 to 4 hours of continuous use. 12 AWG extension cords support 15 amps over 100 feet for heavy-duty equipment including compressors, portable heaters, and industrial tools from 1500 to 1800 watts.

Thick 2.05 mm diameter wires dissipate heat efficiently during intensive use of 8 to 10 hours per day. Priced from $60 to $200, their price reflects their safety and durability. 10 AWG extension cords handle 20 amps for 240V applications and extreme loads. Never overload extension cords: add up the wattage of all connected devices, divide by 120V, and select the appropriate amperage rating with a 20% safety margin.

Polar Industrial Equipment recommends a larger caliber when in doubt to avoid fire hazards.

Protection technologies: GFCI, enhanced insulation and certifications

Extension cords with integrated GFCI (Ground Fault Circuit Interrupter) protection detect current leaks of 4 to 6 milliamps, tripping the circuit breaker in less than 0.03 seconds to prevent electrocution. Mandatory for outdoor use and in humid environments, in accordance with the Quebec electrical code.

Test and reset buttons allow for monthly functionality checks. Priced from $50 to $120, these extension cords provide vital protection on worksites exposed to rain, snow, and humidity. DeWalt manufactures extension cords with triple-layer vinyl jackets resistant to abrasion, oil, and temperatures from -40°C to +60°C, typical of Quebec's climate. Molded, sealed connectors prevent water infiltration into electrical connections. Indicator lights confirm active power and proper grounding.

Robust construction withstands repeated vehicle and heavy equipment traffic without crushing conductors. Milwaukee offers extension cords with Twist-Lock locking plugs that prevent accidental disconnections during tool vibrations. The 90° twist system secures the connection mechanically without overtightening. CSA and UL certifications guarantee compliance with Canadian and American electrical safety standards.

Polar Industrial Equipment stocks certified extension cords that meet the rigorous requirements of commercial and industrial construction sites.

Professional applications: construction, events and maintenance

Construction contractors require 50- to 100-foot, 12 AWG extension cords to power saws, drills, compressors, and lighting simultaneously. Typical combined loads on job sites range from 10 to 15 amps, requiring 3 to 5 tools operating in parallel. GFCI extension cords are mandatory for safety compliance during inspections. The cords feature UV-resistant sheaths that withstand abrasion on rough concrete and asphalt surfaces. They offer a durability of 3 to 8 years under rigorous daily professional use.

Event organizers use extension cords ranging from 25 to 100 feet to power audio systems, stage lighting, and outdoor catering equipment. These cords have capacities of 15 to 20 amps, supporting loads of 1500 to 2400 watts per circuit. Various colors facilitate the identification of dedicated circuits, preventing accidental overloads. The drum-mounted design allows for quick deployment and efficient storage during repeated setup and teardown.

Industrial maintenance teams require robust 25- to 50-foot extension cords for mobile interventions on production equipment. Cold-resistant down to -30°C, these cords allow for winter handling without sheath hardening. Reinforced connectors withstand impacts and repeated drops during transport in service trucks. Multiple extension cords are stored in vehicles, covering varying distances from 10 to 100 feet to accommodate unpredictable intervention locations.

Polar Industrial Equipment provides complete ranges according to specific production rates and professional application environments.

Safety and maintenance: maximizing lifespan and preventing accidents

The safe use of extension cords requires a visual inspection before each use to identify cracked sheaths, exposed conductors, or damaged connectors that need immediate replacement. Cracks larger than 5 mm exposing copper wires create risks of electric shock and short circuits. Loose or burnt connectors indicate past overheating, compromising safety.

Replace faulty extension cords rather than repairing them with insulating tape, which creates dangerous, non-compliant connections. Fully unwind extension cords before prolonged use to prevent heat buildup in tightly wound coils that can degrade insulation. Extension cords wound on drums dissipate heat 50% less efficiently, generating temperatures of 60 to 80°C during continuous maximum loads. Hang extension cords 15 cm from the floor to prevent water accumulation and immersion during rain. Never pass extension cords through doors, windows, or walls, as this can cause pinching and rapid abrasion.

Store extension cords in dry locations, loosely coiled in circles 30 to 50 cm in diameter, avoiding permanent bends that create weak points. Clean the sheaths monthly with a damp cloth to remove oils, dust, and debris that accelerate degradation. Avoid direct sunlight during prolonged storage, as UV curing will occur in 6 to 12 months. Typical lifespan is 3 to 10 years, depending on usage and maintenance.

Polar Industrial Equipment offers certified replacement extensions for safe operational continuity.
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We answer your questions about extension cords

Which extension cord is best for high-power jobsite tools?

For high-power jobsite tools such as circular saws (1500W), compressors (2000W), and hammer drills (1200W), choose 50-foot 12 AWG extension cords rated for 15 amps.

Look for heavy-duty construction with a triple-layer jacket resistant to abrasion and extreme temperatures from -40°C to +60°C.

Recommended specifications:

• Gauge: Minimum 12 AWG for continuous 15A loads

• Length: 50 feet for sufficient reach without excessive voltage drop

• Protection: Built-in GFCI for outdoor jobsite compliance

• Connectors: Molded, sealed plugs to prevent water infiltration

Models with light indicators confirming proper grounding and active power make quick diagnostics easier. High-visibility yellow jackets reduce tripping hazards. CSA certification is mandatory for commercial jobsites.

Équipement Industriel Polar recommends DeWalt and Milwaukee brands for reliability in daily professional use.

Are GFCI-protected extension cords really necessary?

Yes, GFCI-protected extension cords are mandatory for outdoor use and wet environments according to Quebec electrical code.

They detect current leakage of 4 to 6 milliamps and trip within 0.03 seconds, preventing potentially fatal electrocution. Jobsites, gardens, and rain-exposed areas require this essential protection.

Situations requiring GFCI:

• Outdoor use: Jobsites, gardens, patios exposed to rain

• Moist environments: Basements, bathrooms, kitchens with water exposure

• Regulations: Required on inspected commercial jobsites

• Safety: Protects against shock up to 10 times faster than standard breakers

For dry indoor use with rugged tools, standard cords without GFCI are acceptable and save 30 to 50% of the cost.

However, GFCI adds an extra layer of protection even indoors against tool faults and defective wiring. Test the unit monthly using the test button to confirm proper operation.

Équipement Industriel Polar recommends GFCI for all professional applications to maximize worker safety.

What voltage drop can I expect from a 50-foot extension cord?

Voltage drop on a 50-foot extension cord ranges from 2% to 8% depending on wire gauge and load. A 12 AWG cord carrying 15 amps typically shows a 3 to 5% drop, acceptable for most tools.

A 14 AWG cord under the same load may experience a 5 to 8% drop, which can be problematic for sensitive equipment.

Typical voltage drops:

• 12 AWG, 50 ft, 15A: 3–5% acceptable for rugged tools

• 14 AWG, 50 ft, 15A: 5–8% borderline acceptable, risk of underperformance

• 16 AWG, 50 ft, 10A: 6–10% excessive, possible overheating

• 10 AWG, 50 ft, 20A: 2–3% minimal, optimal for heavy loads

Excessive voltage drop reduces available power. A 1500W tool with an 8% drop receives only 1380W, compromising performance.

Electric motors compensate by drawing more current, causing overheating and premature wear. For critical loads requiring stable voltage, use a heavier gauge or reduce length.

Équipement Industriel Polar recommends 12 AWG as the professional standard for optimal balance.

How can I extend the lifespan of my extension cords?

Extend lifespan by fully uncoiling extension cords before use to prevent heat buildup inside coils. Visually inspect before each use to identify cracked jackets or damaged connectors requiring replacement.

Store loosely coiled in 30 to 50 cm loops to avoid permanent bends that create weak points.

Essential maintenance practices:

• Fully uncoil before heavy use to prevent overheating

• Pre-use inspection to identify damage requiring replacement

• Store dry and loosely coiled to avoid permanent bends

• Monthly cleaning to remove oils and debris that accelerate degradation

Avoid running vehicles over cords, which crush conductors and crack jackets. Never run cords through doors or windows where insulation can be pinched. During rain, suspend cords at least 15 cm above ground to avoid prolonged immersion.

Protect connectors in weatherproof boxes during extended outdoor use. Immediately replace cords with cracks exposing copper wires. Typical lifespan ranges from 3 to 10 years depending on usage intensity and preventive care.

What warranty do you offer on extension cords?

Extension cords come with a manufacturer warranty ranging from 30 days to 2 years depending on the brand, covering manufacturing and material defects.

DeWalt offers a 1-year commercial warranty, while Milwaukee provides a 2-year professional warranty. Warranties exclude normal wear, physical damage from crushing, and accidental cuts due to misuse.

Typical warranty coverage:

• Manufacturing defects: Faulty jackets, improperly crimped conductors

• Materials: Insulation cracking prematurely, defective connectors

• Exclusions: Crushing damage, cuts, prolonged water immersion

• Équipement Industriel Polar policy: 30-day return on unused products

For warranty claims, keep your proof of purchase and the defective cord for inspection. Failures appearing during normal early use are replaced at no charge. Damage from electrical overload, vehicle traffic, or improper storage is excluded.

Free technical support is available at 1-800-567-3206 for load calculations, product selection guidance, and safe usage practices to maximize lifespan and code compliance.

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