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KANOMAX 6533 A533 Climomaster Thermal Anemometer  Test unit


KANOMAX 6533 A533 Climomaster Thermal Anemometer Test unit


$1,899.00


WESTINGHOUSE JT2250T THERMAL TRIP UNIT


WESTINGHOUSE JT2250T THERMAL TRIP UNIT


$1,175.00


CUTLER  HAMMER / WESTINGHOUSE MT3500T  THERMAL MAGNETIC TRIP UNIT  NEW IN BOX


CUTLER HAMMER / WESTINGHOUSE MT3500T THERMAL MAGNETIC TRIP UNIT NEW IN BOX


$980.00


CUTLER-HAMMER THERMAL MAGNETIC TRIP UNIT JT3100T *NEW*


CUTLER-HAMMER THERMAL MAGNETIC TRIP UNIT JT3100T *NEW*


$840.00


**BRAND NEW IN BOX** CUTLER HAMMER LD2600 & LT2600T THERMAL MAGNETIC TRIP UNIT


**BRAND NEW IN BOX** CUTLER HAMMER LD2600 & LT2600T THERMAL MAGNETIC TRIP UNIT


$795.88


CUTLER HAMMER KT3250TA TRIP UNIT 200-250 A 3 POLE THERMAL MAGNETIC TRIP BREAKER


CUTLER HAMMER KT3250TA TRIP UNIT 200-250 A 3 POLE THERMAL MAGNETIC TRIP BREAKER


$749.99


FISHER DM6351X1-A1 TYPE J THERMAL COUPLE INPUT UNIT 39A8567X022 REV F  1 YR RET


FISHER DM6351X1-A1 TYPE J THERMAL COUPLE INPUT UNIT 39A8567X022 REV F 1 YR RET


$700.00


CUTLER HAMMER LT3600T 600 THERMAL MAGNETIC TRIP UNIT  *** NEW ***


CUTLER HAMMER LT3600T 600 THERMAL MAGNETIC TRIP UNIT *** NEW ***


$595.00


SQUARE D CC 74.6, OVERLOAD RELAY THERMAL UNIT, LOT OF (5) NIB 


SQUARE D CC 74.6, OVERLOAD RELAY THERMAL UNIT, LOT OF (5) NIB 


$39.00


Cutler Hammer HLB3400T tirp unit thermal mag 3 pole 400amp


Cutler Hammer HLB3400T tirp unit thermal mag 3 pole 400amp


$500.00


ABB T5N300TW THERMAL MAGNETIC TRIP UNIT / MCCB


ABB T5N300TW THERMAL MAGNETIC TRIP UNIT / MCCB


$499.80


HEL TSU Thermal Screening Unit H.E.L Group   N


HEL TSU Thermal Screening Unit H.E.L Group N


$450.00


Ideal Thermal Soldering Unit - Thermo- Grip, Model 12062


Ideal Thermal Soldering Unit – Thermo- Grip, Model 12062


$399.00


SQUARE D THERMAL UNITS, MIXED LOT OF 95 PIECES, AR TYPE


SQUARE D THERMAL UNITS, MIXED LOT OF 95 PIECES, AR TYPE


$395.00


WESTINGHOUSE JT3200T THERMAL TRIP UNIT    NEW


WESTINGHOUSE JT3200T THERMAL TRIP UNIT NEW


$400.00


Westinghouse thermal magnetic trip unit model #KT3225T


Westinghouse thermal magnetic trip unit model #KT3225T


$399.99


Ideal Thermal soldering Unit with 4 handles 12-062D


Ideal Thermal soldering Unit with 4 handles 12-062D


$375.00


WESTINGHOUSE CIRCUIT BREAKER S1764658  THERMAL MAG TRIP UNIT FOR AQB & NQB C. B.


WESTINGHOUSE CIRCUIT BREAKER S1764658 THERMAL MAG TRIP UNIT FOR AQB & NQB C. B.


$350.00


CUTLER  HAMMER /WESTINGHOUSE KT3350T THERMAL MAGNETIC TRIP UNIT  NEW IN BOX


CUTLER HAMMER /WESTINGHOUSE KT3350T THERMAL MAGNETIC TRIP UNIT NEW IN BOX


$349.00


Cutler-Hammer KT3150T Srs. C Thermal Magnetic Trip Unit


Cutler-Hammer KT3150T Srs. C Thermal Magnetic Trip Unit


$325.00


Cutler Hammer KT3400T thermal magnetic trip unit 400amp 3pole


Cutler Hammer KT3400T thermal magnetic trip unit 400amp 3pole


$300.00


CUTLER HAMMER LT3600T 600 THERMAL MAGNETIC TRIP UNIT


CUTLER HAMMER LT3600T 600 THERMAL MAGNETIC TRIP UNIT


$300.00


NEW SIEMENS THERMAL  CIRCUIT BREAKER TRIP UNIT FD62T125


NEW SIEMENS THERMAL CIRCUIT BREAKER TRIP UNIT FD62T125


$295.00


Lot of 18 Square D Overload Relay Thermal Unit B 6.25 B6.25 New In Box!


Lot of 18 Square D Overload Relay Thermal Unit B 6.25 B6.25 New In Box!


$260.00


SQUARE D OVERLOAD RELAY THERMAL UNIT 8810 SCA2 *NEW*


SQUARE D OVERLOAD RELAY THERMAL UNIT 8810 SCA2 *NEW*


$250.00


SA CIRCUIT BREAKER TRIP UNIT MODEL: L-1904, THERMAL MAGNETIC TRIP UNIT KT 3300T


SA CIRCUIT BREAKER TRIP UNIT MODEL: L-1904, THERMAL MAGNETIC TRIP UNIT KT 3300T


$225.00


Allen Bradley Trip Unit 190-P320 24-32A Thermal NIB (7149)


Allen Bradley Trip Unit 190-P320 24-32A Thermal NIB (7149)


$225.00


NICE Cutler Hammer 300 amp Thermal Magnetic Trip Unit 300amp  KS360300D  600 vac


NICE Cutler Hammer 300 amp Thermal Magnetic Trip Unit 300amp KS360300D 600 vac


$199.00


Joslyn Clark Overload Thermal Heating Units Assorted


Joslyn Clark Overload Thermal Heating Units Assorted


$220.99


NICE Cutler Hammer 300 amp Thermal Magnetic Trip Unit 300amp  KS360300D  600 vac


NICE Cutler Hammer 300 amp Thermal Magnetic Trip Unit 300amp KS360300D 600 vac


$199.00


Westinghouse HKB3200T Trip Unit 200 A Thermal Magnetic


Westinghouse HKB3200T Trip Unit 200 A Thermal Magnetic


$205.00


Cutler Hammer KT3300TV thermal magnetic trip unit 300amp 3 pole


Cutler Hammer KT3300TV thermal magnetic trip unit 300amp 3 pole


$200.00


Lot of 167


Lot of 167 “B” Square D Thermal Overload Heater Units- Various Sizes


$199.00


2 UNITS OF G-V Thermal Time Delay Relay RO-40  115V 40 SEC


2 UNITS OF G-V Thermal Time Delay Relay RO-40 115V 40 SEC


$180.00


CUTLER HAMMER THERMAL MAGNETIC TRIP UNIT JT3250T 3 PHASE 250A 600V INV=2518


CUTLER HAMMER THERMAL MAGNETIC TRIP UNIT JT3250T 3 PHASE 250A 600V INV=2518


$188.10


WESTINGHOUSE JT2150T  THERMAL TRIP UNIT -NEW


WESTINGHOUSE JT2150T THERMAL TRIP UNIT -NEW


$200.00


Westinghouse Thermal Magnetic Trip Unit KT3400T $149.99


Westinghouse Thermal Magnetic Trip Unit KT3400T $149.99


$149.99


Cutler Hammer KT3400T Thermal Magnetic K Frame 3P 400A Trip Unit


Cutler Hammer KT3400T Thermal Magnetic K Frame 3P 400A Trip Unit


$153.55


BRAND NEW MEISEI 2A HOTnife HAND UNIT, NEW THERMAL WIRE STRIPPER


BRAND NEW MEISEI 2A HOTnife HAND UNIT, NEW THERMAL WIRE STRIPPER


$159.00


I.S.I. Group, ISI Model 86 Remote Camera Control Unit, CCU for Thermal Imaging?


I.S.I. Group, ISI Model 86 Remote Camera Control Unit, CCU for Thermal Imaging?


$139.00


LOT OF 29 NIB SQUARE D OVERLOAD RELAY THERMAL UNITS


LOT OF 29 NIB SQUARE D OVERLOAD RELAY THERMAL UNITS


$155.00


Lot of 10 Units T7DU1.6  ABB THERMAL OVERLOAD RELAY 1.0-1.6 FLA NEW OEM PACKAGE


Lot of 10 Units T7DU1.6 ABB THERMAL OVERLOAD RELAY 1.0-1.6 FLA NEW OEM PACKAGE


$150.00


NEW IN BOX WESTINGHOUSE HKA3100T THERMAL MAGNETIC TRIP UNIT


NEW IN BOX WESTINGHOUSE HKA3100T THERMAL MAGNETIC TRIP UNIT


$135.00


LOT OF 28 ASSORTED NIB GE HEATER OVERLOAD THERMAL UNITS


LOT OF 28 ASSORTED NIB GE HEATER OVERLOAD THERMAL UNITS


$119.00


Lot of 12 Square D Overload Relay Thermal Unit B 1.88 B1.88 New In Box!


Lot of 12 Square D Overload Relay Thermal Unit B 1.88 B1.88 New In Box!


$120.00


Square D Thermal Unit Heater Overload Relays B3.30 NIB


Square D Thermal Unit Heater Overload Relays B3.30 NIB


$114.74


LOT Square D Thermal Overload Heater Unit


LOT Square D Thermal Overload Heater Unit


$99.99


Allen Bradley Trip Unit 0.4-0.6AMP Thermal W/Relay 1NO/1NC (5704)  F


Allen Bradley Trip Unit 0.4-0.6AMP Thermal W/Relay 1NO/1NC (5704) F


$96.97


MATSUSHITA BMF6-10-4-2 Contactor BMF9-07 Thermal Unit


MATSUSHITA BMF6-10-4-2 Contactor BMF9-07 Thermal Unit


$98.95


Lot of 8 Square D Thermal Unit B3.30


Lot of 8 Square D Thermal Unit B3.30


$85.00


SQUARE D B2.65 OVERLOAD RELAY THERMAL UNIT - LOT OF 22


SQUARE D B2.65 OVERLOAD RELAY THERMAL UNIT – LOT OF 22


$88.00


Square D 9065SE05 thermal overload relay melting alloy use 3 type B thermal unit


Square D 9065SE05 thermal overload relay melting alloy use 3 type B thermal unit


$75.00


6 NIB SQUARE D B36 OVERLOAD RELAY THERMAL UNITS Q6-6


6 NIB SQUARE D B36 OVERLOAD RELAY THERMAL UNITS Q6-6


$73.99


LOT OF 8 SQUARE D A1.16 OVERLOAD RELAY THERMAL UNIT NEW


LOT OF 8 SQUARE D A1.16 OVERLOAD RELAY THERMAL UNIT NEW


$75.00


Lot of 15 Allen Bradley W15 Overload Thermal Unit W15 New!!!!


Lot of 15 Allen Bradley W15 Overload Thermal Unit W15 New!!!!


$76.50


9 NEW GE HEATER OVERLOAD THERMAL UNITS  123F719B   123F658B


9 NEW GE HEATER OVERLOAD THERMAL UNITS 123F719B 123F658B


$59.00


Lot of 8 Allen Bradley W74 Overload Thermal Unit W74 New!!!!


Lot of 8 Allen Bradley W74 Overload Thermal Unit W74 New!!!!


$66.60


MEISEI 2A HOTnife HAND UNIT, USED THERMAL WIRE STRIPPER


MEISEI 2A HOTnife HAND UNIT, USED THERMAL WIRE STRIPPER


$59.99


Lot of 6 Allen Bradley W59 Overload Thermal Unit W59 New!!!!


Lot of 6 Allen Bradley W59 Overload Thermal Unit W59 New!!!!


$61.20


6 NIB SQUARE D OVERLOAD RELAY THERMAL UNIT HEATER B0.81


6 NIB SQUARE D OVERLOAD RELAY THERMAL UNIT HEATER B0.81


$49.00


SQUARE D CC 54.5, OVERLOAD RELAY THERMAL UNIT, LOT OF (9) NIB 


SQUARE D CC 54.5, OVERLOAD RELAY THERMAL UNIT, LOT OF (9) NIB 


$55.00


Allen Bradley Thermal Overload Heating Units N19 NIB


Allen Bradley Thermal Overload Heating Units N19 NIB


$59.49


BOX OF 6 SQUARE D CC46.6 OVERLOAD RELAY THERMAL UNITS


BOX OF 6 SQUARE D CC46.6 OVERLOAD RELAY THERMAL UNITS


$50.00


Square D Heater Element CC180 Thermal Unit Circuit Part


Square D Heater Element CC180 Thermal Unit Circuit Part


$49.99


SQUARE D CC 103.0, OVERLOAD RELAY THERMAL UNIT, LOT OF (8) NIB 


SQUARE D CC 103.0, OVERLOAD RELAY THERMAL UNIT, LOT OF (8) NIB 


$49.00


3 CUTLER HAMMER FH33 MOTOR STARTER THERMAL UNITS / OVERLOAD HEATERS- OLD STOCK


3 CUTLER HAMMER FH33 MOTOR STARTER THERMAL UNITS / OVERLOAD HEATERS- OLD STOCK


$49.99


30876 New In box, Cutler-Hammer H2005B-3 Box-3 Overload Thermal Unit 1.20-1.96A


30876 New In box, Cutler-Hammer H2005B-3 Box-3 Overload Thermal Unit 1.20-1.96A


$47.25


Square D Overload relay Thermal unit B4.15 (6 new in box)


Square D Overload relay Thermal unit B4.15 (6 new in box)


$50.00


Square D Overload relay Thermal unit B8.20 (6 new in box)


Square D Overload relay Thermal unit B8.20 (6 new in box)


$50.00


United Electric Pre-Calibrated Thermal Assemblies pt. # TA/650-16BS, 5 per case


United Electric Pre-Calibrated Thermal Assemblies pt. # TA/650-16BS, 5 per case


$39.95


Lot of 6 Allen Bradley W58 Overload Thermal Unit W58 New!!!!


Lot of 6 Allen Bradley W58 Overload Thermal Unit W58 New!!!!


$52.20


THERMISTOR MOTOR PROTECTION  SIEMENS 3RN1010-1CB00 THERMAL OVERLOAD UNIT NIB!!!!


THERMISTOR MOTOR PROTECTION SIEMENS 3RN1010-1CB00 THERMAL OVERLOAD UNIT NIB!!!!


$45.00


SQUARE D B2.10 THERMAL OVERLOAD UNIT (LOT OF 7) ***NIB***


SQUARE D B2.10 THERMAL OVERLOAD UNIT (LOT OF 7) ***NIB***


$40.00


SQUARE D CC 121.0, OVERLOAD RELAY THERMAL UNIT, LOT OF (6) NIB


SQUARE D CC 121.0, OVERLOAD RELAY THERMAL UNIT, LOT OF (6) NIB


$45.00


SQUARE D CC 64.3, OVERLOAD RELAY THERMAL UNIT, LOT OF (6) NIB 


SQUARE D CC 64.3, OVERLOAD RELAY THERMAL UNIT, LOT OF (6) NIB 


$45.00


SQUARE D CC 28.8, OVERLOAD RELAY THERMAL UNIT, LOT OF (7) NIB 


SQUARE D CC 28.8, OVERLOAD RELAY THERMAL UNIT, LOT OF (7) NIB 


$45.00


SQUARE D CC 87.7, OVERLOAD RELAY THERMAL UNIT, LOT OF (6) NIB 


SQUARE D CC 87.7, OVERLOAD RELAY THERMAL UNIT, LOT OF (6) NIB 


$45.00


*Untested* Oyo Geospace GS-608P Thermal Plotter Unit


*Untested* Oyo Geospace GS-608P Thermal Plotter Unit


$19.95


SQUARE D GF 3.30 OVERLOAD RELAY THERMAL UNIT QTY 5 NEW


SQUARE D GF 3.30 OVERLOAD RELAY THERMAL UNIT QTY 5 NEW


$49.95


Lot of 13 Allen Bradley W73 Overload Thermal Unit W73 New!!!!


Lot of 13 Allen Bradley W73 Overload Thermal Unit W73 New!!!!


$49.50


SQUARE D OVERLOAD RELAY THERMAL UNITS (LOT OF 10) ***NIB***


SQUARE D OVERLOAD RELAY THERMAL UNITS (LOT OF 10) ***NIB***


$39.00


Lot 3pcs Square D DD 185 Overload Thermal Unit


Lot 3pcs Square D DD 185 Overload Thermal Unit


$19.00


Lot 3pcs. Square D DD160 Overload Thermal Unit


Lot 3pcs. Square D DD160 Overload Thermal Unit


$19.00


SQUARE D CC 156.0, OVERLOAD RELAY THERMAL UNIT, LOT OF (4) NIB


SQUARE D CC 156.0, OVERLOAD RELAY THERMAL UNIT, LOT OF (4) NIB


$43.00


Siemens 3UN8 020 Thermal Motor Protection Unit ++ NEW +


Siemens 3UN8 020 Thermal Motor Protection Unit ++ NEW +


$44.95


Lot of 15 Allen Bradley W18 Overload Thermal Unit W18 New!!!!


Lot of 15 Allen Bradley W18 Overload Thermal Unit W18 New!!!!


$45.00


Allen Bradley Electronic Thermal Overload Unit X592P-A2CT  0.32 - 1.0 amp


Allen Bradley Electronic Thermal Overload Unit X592P-A2CT 0.32 – 1.0 amp


$45.00


General Electric 867A qty 5 in each box  heater element thermal unit


General Electric 867A qty 5 in each box heater element thermal unit


$40.00


(4) ALLEN BRADLEY OVERLOAD THERMAL UNITS P31 (NIB)


(4) ALLEN BRADLEY OVERLOAD THERMAL UNITS P31 (NIB)


$39.99


Lot of 4 - New Square D Thermal Unit CC74.6


Lot of 4 – New Square D Thermal Unit CC74.6


$39.00


SQUARE D THERMAL UNITS, LOT OF 19 PIECES, NEW


SQUARE D THERMAL UNITS, LOT OF 19 PIECES, NEW


$38.00


SQUARE D 9065C01 OVERLOAD RELAY THERMAL UNIT NEW CONDITION IN BOX


SQUARE D 9065C01 OVERLOAD RELAY THERMAL UNIT NEW CONDITION IN BOX


$35.00


Square D B4.85 B Overload Relay THERMAL UNIT ~ Heater NEW pack of 6


Square D B4.85 B Overload Relay THERMAL UNIT ~ Heater NEW pack of 6


$39.99


Allen Bradley Thermal Overload Heating Units N17 NIB


Allen Bradley Thermal Overload Heating Units N17 NIB


$42.49


Allen Bradley Thermal Overload Heating Units N11 NIB


Allen Bradley Thermal Overload Heating Units N11 NIB


$42.49


WESTINGHOUSE MW Overload Relay HEATER BR36 THERMAL UNIT


WESTINGHOUSE MW Overload Relay HEATER BR36 THERMAL UNIT


$37.00


NIB LOT OF MISCELLANEOUS SQUARE D OVERLOAD THERMAL RELAY UNIT SIZES BELOW


NIB LOT OF MISCELLANEOUS SQUARE D OVERLOAD THERMAL RELAY UNIT SIZES BELOW


$30.00


22460 NEW Cutler-Hammer H2001B-3 Overload Thermal Unit


22460 NEW Cutler-Hammer H2001B-3 Overload Thermal Unit


$34.97


Lot of 15 Allen Bradley W19 Overload Thermal Unit W19 New!!!!


Lot of 15 Allen Bradley W19 Overload Thermal Unit W19 New!!!!


$40.50


SQUARE D 1-B0.71 THERMAL OVERLOAD UNIT (LOT OF 5) ***NIB***


SQUARE D 1-B0.71 THERMAL OVERLOAD UNIT (LOT OF 5) ***NIB***


$30.00

Thermal Unit Questions

Thermal Unit

Sizing and Cost of an Air Conditioner Unit for your Home

If you have an old air conditioner unit with an EER (Energy Efficiency Ratio) of 7 to 9, now is the right time to replace it. Modern air con units are becoming more affordable. Now, they even have more features like energy saving, quiet motors, digital controls and complete manageability of temperature settings and thermostat.

The EER is a rating given to any type of air con, including both one-room (window-installed) and centralized types. According to the law, all air cons must have at least an EER of 10. Higher numbers mean that more energy is saved. Among units with the same cooling capacity, those with higher EERs are more expensive. However, these are good investments because they can significantly lower your electric bill.

When it comes to sizing your prospective air conditioner unit, the primary criteria are the size of your house and the number of rooms. It is common to air-condition just one room. More often, this is the bedroom. The best choice for single-room conditioning is the window-type air con. The price of such unit starts at $100; however, prices increase with higher EERs. Units that are designed for larger rooms (more than 500 sq. ft. floor area) are available at $800 or more.

Another attribute that affects the price is the rating of BTU (British Thermal Unit). This number refers to the capacity to achieve uniform cooling for a closed place. In other words, high BTU means faster and stronger cooling. Normally, a larger room will require a bigger BTU unit. Consult your constructor on the minimum BTU for your home. Excess BTU is just a waste of cash and energy.

The cost of air conditioning is significantly higher if you want a centralized cooling system. This system requires a more organized duct and air dispersal system to evenly cool all your rooms-in just one press of a button. If there is an existing air-duct system, the price of an air conditioner unit, plumbing and wiring for a 2000 sq. ft. house falls between $3000 and $4000. If there is no ductwork yet, the cost will be doubled.

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