Ul Class Fuse Overload Characteristics Interrupting Rating, Amperes AC Voltage Rating Available Ampere Ratings Ferraz-Shawmut Part Number L TIME-DELAY 200,000 600 200 – 6000 601 – 4000 200 – 2000 A4BQ A4BT A4BQ RK1*** TIME-DELAY 200,000 250 600 1/10 – 600 A2D-R A6D-R FAST-ACTING 200,000 250 600 1 – 600 A2K-R A6K-R RK5 TIME-DELAY 200,000 […]

C° F° C° F° C° F° C° F° 0 32 1 33.8 26 78.8 51 123.8 76 168.8 2 35.6 27 80.6 52 125.6 77 170.6 3 37.4 28 82.4 53 127.4 78 172.4 4 39.2 29 84.2 54 129.2 79 174.2 5 41 30 86 55 131 80 176 6 42.8 31 87.8 56 […]

The Specific Resistance (K) of a material is the resistance offered by a wire of this material which is one foot long with a diameter of one MIL. The resistance of a wire is directly proportional to the specific resistance of the material. Material “K” Material “K” Brass 43.0 Aluminum 17.0 Constantan 295 Monel 253 […]

Motor Horsepower Motor Ampere Size Breaker Size Starter Heater Ampere Size Wire Size Conduit 1 230V 460 V 4.2 2.1 15 15 00 00 4.830 2.415 12 12 3/4″ 3/4″ 1-1/2 230V 460V 6.0 3.0 15 15 00 00 6.900 3.450 12 12 3/4″ 3/4″ 2 230V 460V 6.8 3.4 15 15 0 00 7.820 […]

MOTOR R. P. M. Horse Power VOLTS 3800 1800 1200 900 1/2 230 1.72 2.15 2.38 460 .86 1.08 1.19 3/4 230 2.46 2.93 3.26 460 1.23 1.46 1.63 1 230 2.80 3.56 3.76 4.30 460 1.40 1.78 1.88 2.15 1 1/2 230 4.36 4.86 5.28 5.60 460 2.18 2.43 2.64 2.80 2 230 5.60 […]

Number of Conductors in a Raceway Percent of Total Value 4 thru 6 80 7 thru 9 70 10 thru 20 50 21 thru 30 45 31 thru 40 40 41 and above 35

Multiply: By: To Obtain: Acres 43560 Square Feet Acres 1.562 x 10-3 Square Miles Acre-Feet 43560 Cubic Feet Amperes per sq cm 6.452 Amperes per sq in. Amperes per sq in. 0.1550 Amperes per sq cm. Ampere-Turns 1.257 Gilberts Ampere-Turns per cm 2.540 Ampere-Turns per in. Ampere-Turns per in. 0.3937 Ampere-Turns per cm. Atmospheres 76.0 […]

Wiring Voltage 15 AMPERE 20 AMPERE 30 AMPERE Receptacle Plug Receptacle Plug Receptacle Plug 2-Pole 2-Wire 125V L1 L1-15R L1-15P 250V L2 L2-20R L2-20P 277V AC L3 Reserved For Future Configurations 600V L4 Reserved For Future Configurations 2-Pole 3-Wire Grounding 125V L5 L5-15R L5-15P L5-20R L5-20P L5-30R L5-30P 250V L6 L6-15R L6-15P L6-20R L6-20P L6-30R […]

NEMA Configurations for general-purpose nonlocking Plugs and Receptacles Voltage 15 Ampere 20 Ampere 30 Ampere 50 Ampere 60 Ampere Receptacle Plug Receptacle Plug Receptacle Plug Receptacle Plug Receptacle Plug 2 Pole 2 Wire 125V 1 1-15R 1-15P 250V 2 2-15P 2-20R 2-20P 2-30R 2-30P 277V AC 3 Reserved For Future Configurations 600V 4 Reserved For […]

Trade Size Wire Size (THWN, THHN) Conductor Size AWG/kcmil 14 12 10 8 6 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 500 600 700 750 1/2 EMT 12 9 5 3 2 1 1 1 1 1 IMC 14 10 6 3 2 1 1 1 1 1 1 GRC […]