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US-American and British units - Conversion of usual measuring units

Units for cables and wires
In the US the measurements are mainly used in AWG-numbers (AWG = American Wire Gauge). The AWG-numbers conform the British B&S-numbers (B&S = Brown & Sharp)
AWG No. Cross-section mm² Diameter mm Conductor Resistance Ohm/km AWG No. Cross-section mm² Diameter mm Conductor Resistance Ohm/km
1000 MCM* 507 25.4 0.035 14 2.08 1.63 8.79
750 380 22.0 0.047 15 1.65 1.45 11.20
600 304 19.7 0.059 16 1.31 1.29 14.70
500 254 20.7 0.07 17 1.04 1.15 17.80
400 203 18.9 0.09 18 0.8230 1.0240 23.0
350 178 17.3 0.10 19 0.6530 0.9120 28.3
300 152 16.0 0.12 20 0.5190 0.8120 34.5
250 127 14.6 0.14 21 0.4120 0.7230 44.0
4/0 107.2 11.68 0.18 22 0.3250 0.6440 54.8
3/0 85.0 10.40 0.23 23 0.2590 0.5730 70.1
2/0 67.5 9.27 0.29 24 0.2050 0.5110 89.2
0 53.4 8.25 0.37 25 0.1630 0.4550 111.0
1 42.4 7.35 0.47 26 0.1280 0.4050 146.0
2 33.6 6.54 0.57 27 0.1020 0.3610 176.0
3 26.7 5.83 0.71 28 0.0804 0.3210 232.0
4 21.2 5.19 0.91 29 0.0646 0.2860 282.0
5 16.8 4.62 1.12 30 0.0503 0.2550 350.0
6 13.3 4.11 1.44 31 0.0400 0.2270 446.0
7 10.6 3.67 1.78 32 0.0320 0.2020 578.0
8 8.366 3.26 2.36 33 0.0252 0.1800 710.0
8 6.63 2.91 2.77 34 0.0200 0.1600 899.0
10 5.26 2.59 3.64 35 0.0161 0.1430 1125.0
11 4.15 2.30 4.44 36 0.0123 0.1270 1426.0
12 3.30 2.05 5.41 37 0.0100 0.1130 1800.0
13 2.62 1.83 7.02 38 0.00795 0.1010 2255.0

4/0 is also stated: 0000; 1 mil = 0.001 inch = 0.0254 mm
* for bigger cross-section the sizes in MCM (circular mils)

39 0.00632

0.0897

 2860.0

1 CM = 1 Circ. mil. = 0.0005067 mm²
1 MCM = 1000 Circ. mils = 0.5067 mm²



General Measuring Units
Length

1 mil

= 0.0254 mm

1 in (inch)

= 25.4 mm

1 ft (foot)

= 0.3048 m

1 yd (yard)

= 0.9144 m

1 ch (chain)

= 20.1 m

1 mile (land mile)

= 1.609 km

 

 = 1760 yards

1 mile (nautic mile)

= 1.852 km

1 mm

= 0.039370 inches

1 m

= 39.370079 inches

Area

1 CM (circ. mil)

= 0.507 x 10-3 mm²
1 MCM = 0.5067 mm²

1 sq. inch (sq. inch)

= 645.16 mm²

1 sq. ft. (sq. foot)

= 0.0929 m²

1 square yard

= 0.836 m²

1 acre

= 4047 m²

1 square mile

= 2.59 km²

Density

1 cu. in. (cubic inch)

= 16.39 cm³

1 cu. ft. (cubic foot)

= 0.0283 m³

1 cu. yd. (cubic yard)

= 0.7646 m³

1 gal. (US gallon)

= 3.785 l

1 gal. (brit gallon)

= 4.546 l

1 US pint

= 0.473 l

1 US quart

= 0.949 l

1 US barrel

= 158.8 l

Temperature

F (Fahrenheit)

= (1.8 x C) + 32°

C (Celsius)

= 0.5556 x (F - 32°)

Weight

1 grain

= 64.8 mg

1 dram

= 1.77 g

1 oz (ounce)

= 28.35 g
1 lb (pound) = 0.4536 Kp
1 stone = 6.35 Kp
1 qu (quarter) = 12.7 Kp
1 US-cwt (hundred-weight) = 45.36 Kp

1 US ton (short ton)

= 0.907 t

1 brit. ton (long ton)

= 1.016 t

Force

1 lb

 = 4.448 N
1 brit. ton = 9954 N
1 pdl (Poundal) = 0.1383 N
I kp = 9.81 N
1 N = 0.102 kp

Velocity

1 mile/h

= 1.609 km/h

1 Knoten

= 1.852 km/h

1 ft/s

= 0.305 m/s

1 ft/min

= 5.08 x 10-3 m/s

Energy

1 lb/mile

= 0.282 kg/m

1 lb/yard

= 0.496 kg/m

1 lb/foot

= 1.488 kg/m

Radiation absorbed dose

1 Cray

= 1 J/kg

1 rad

= 10-2 J/kg = 1 Centi Gy = 0.01 Gy

1 Centi

= 100 Joule

1 rad

= cJ/kg = 0.01 Gy

1 Mrad

= 106 cJ/kg

Pressure
1 psi (lb/sq.) = 68.95 mbar
  = 6.895 x 10-3 Nmm²

1 lb/sq. ft.

= 0.478 mbar

1 pdl/sq. ft.

= 1.489 N/m²

1 in Hg

= 33.86 mbar

1 ft H2O

= 29.89 mbar

1 in H2O

= 2.491 mbar

1 N/mm²

= 145 psi = 10 bar

1 kp/mm²

= 1422 psi

1 at

= 736 Torr = 1 kp/cm²

1 Torr

= 1 mm Hg

1 bar

= 0.1 H Pa

1 Pa

= 1 N/m²

Density

1 lb/cu. ft.

= 16.02 kg/m³

1 lb/cu. in.

= 27.68 t/m³

Horse power

1 hp x h

= 1.0139 PS x h

 

 = 2.684 x 106 Joule

 

 = 746 Wh

1 BTU (brit. therm. unit) = 1055 Joule


Electrical units

1 ohm/1000 yd

= 1.0936 Ω/km

1 ohm/1000 ft

= 3.28 Ω/km

1 µF/mile

= 0.62 μ

1 megohm/mile

= 1.61 MΩ/km

1 µµf/foot

= 3.28 pF/m

1 decibel/mile

= 71.5 mN/m

Power rate

1 PS

= 0.736 kW

1 kW

= 1.36 PS

1 hp

= 0.7457 kW

1 kW

= 1.31 hp
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Sealcon is the Exclusive Importer of HUMMEL products. We offer over 6,000 different Types and Sizes of RoHS Compliant Liquid Tight Strain Relief Fittings, Cord Grips, Cable Glands, Circular Connectors, Conduit System, Industrial Enclosures and Other Related Cable Management Products which are rated the best in the industry.
Liquid Tight Strain Relief, Cord Grips, Cable Gland FittingsLiquid Tight Strain Relief Fittings, Cord Grips, Cable Glands
Threads: PG, NPT, Metric, BSPP Threads
Materials: Nylon, Nickel Plated Brass, PVDF (for chemicals and extreme temperatures) & Stainless Steel, NEMA 4x and 6 (IP68, IP 69K).
Approvals: RoHS, Deca BDE, UR, UL, CE, CSA, VDE, German Lloyd, etc.
Coming Soon: UL f1 (UL 746C) - Suitable for outdoor use with respect to exposure to ultraviolet light, water exposure and immersion in accordance with UL 746C
Circular ConnectorsCircular Connectors (M16, M23, RJ45, M27 and M40)
Sizes: M16 Signal, M23 Signal & Power, M27 Signal, M40 Power
Types: Twintus, RJ45 Industrial Ethernet, PoE Fast Ethernet, Push-Pull, Stainless Steel, Over Molded Cordsets, Standard/EMI Ready
Configurations: Signal (3-28 pole) & Power (6 & 8 pole)
Materials: Nickel Plated Brass, Stainless Steel and Aluminum
Approvals: RoHS, Deca BDE, UR, UL, CSA, TÜV, etc.
Hummel EnclosuresIndustrial Enclosures (Plastic & Metal)
Materials: Polycarbonate, ABS (Acryl-Butadiene-Styrene), Aluminum, Steel/Stainless Steel and Polyester.
Types: Gray or Transparent Lids, available with Hinges and Latches, Plain Walls or Knockouts.
Approvals: RoHS, Deca BDE, UL, CSA, TUV and CE. Modular, Expandable, UV and Impact Resistant, NEMA 4, 4x (IP 66/67). Solar Plus for Photovoltaic applications.
Our Enclosures can be equipped with Strain Relief Fittings, Circular Connectors or Conduit Fittings. Other customization options like cutting & drilling are also available.
Conduit SystemConduit System
High Pull-Out Resistance, Robust Performance, Long Life Expectancy, Fastest/ Easy installation, No Tools required!
Fittings: Push-In, Turn-to-Seal, Snapclic DUO (Nylon or Nickel Plated Brass), Double-Seal, Flange/Bulkhead
Conduit: Standard and Super Flex Corrugated Conduit
Accessories: Snap-In Mounting Brackets
Approvals: RoHS, Deca BDE, UR, German Lloyd, CE, etc.
Hazardous Location / Explosive Proof Cord Grips, Cable GlandsHazardous Location / Explosive Proof Cord Grips, Cable Glands
These fittings are labeled and approved to withstand the required needs of a combustible environment.
Materials: Nylon, Nickel Plated Brass, PVDF (chemical resistant & extreme temperatures), Stainless Steel.
Threads: NPT, Metric & PG. NEMA 4x (IP 67) and 6 (IP 68/69K)
Approvals: RoHS, Deca BDE, UL, CSA, VDE, CE, EEx e, ATEX, German Lloyd
EXIOS - High-end Cable Glands for armored cables in hazardous areas including the latest IECEx and ATEX certifications, for use in Ex-e, Ex-d and Ex-tD areas
Adapters, Enlargers, ReducersThread Adapters, Enlargers, Reducers
Convert, Increase or Decrease your thread size with our product lineof Adapters, Enlargers and Reducers.
Threads: NPT, Metric and PG.
Materials: Black or Gray Nylon, Nickel Plated Brass, Aluminum, Stainless Steel.
Approvals: RoHS, Deca BDE, CE, EEe x, ATEX, etc.
Hazardous / Explosive proof versions available.
Cable AccessoriesCable Accessories
Locking Nuts: Black & Gray Nylon, Nickel Plated Brass, Stainless Steel, EMI (w/ Cutting Edges)
O-Rings: Buna-N, Viton®, Silicone
Seal Rings: Polyethylene / Fiber-reinforced Plastic
Hole Plugs: Dome, Hex, Nylon, Nickel Plated Brass
Inserts: Standard, Reduced, Multi-Hole, Romex® for Flat Cables
Other Accessories: Ratchet & Socket Wrenches, Cable Clamps, etc.
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