Reversing Motor
Nov/090
Reversing Motor
Electric Equipment, Tools, Meters
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 Electric Machine Tool Switch motor Reversing 20 Amp A H  US $5.50
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 Carling Tech reversing rocker for trolling motor US $25.00
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 RF Remote 120VAC On Off or AC Motor Reversing Control US $99.95
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 Forward and Reversing Switch For Motor US $8.99
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 Allen Bradley Size 00 Reversing Motor Starter US $115.00
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 Square D Size 4 Class 8536 8502 Reversing Motor Starter US $410.00
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 NEW TELEMECANIQUE LC1 D6511 REVERSING MOTOR STARTER 80A US $150.00
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 Furnas Reversing Motor Starter 15HP NEW 22EP32AA71 US $285.00
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 ALLEN BRADLEY INTERLOCKING REVERSING MOTOR STARTER 1 US $225.00
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 Square D Magnetic Motor Starter Size 2 REVERSING 25hp US $218.00
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 ALLEN BRADLEY REVERSING MOTOR STARTER SIZE 0 US $50.00
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 GE REVERSING MOTOR STARTER SIZE 0 US $65.00
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 Rockwell 24 Volt Reversing Motor Starter Manual US $10.00
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 ITE size 0 reversing motor starter contactor 24v coils US $35.00
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 GE CR309C1 Reversing Nema Motor Starter 27amp 600vac US $249.99
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 NEW ALLEN BRADLEY 100 C60DY10 REVERSING MOTOR CONTACTOR US $299.99
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 Allen Bradley Size 1 Reversing Motor Starter NEW US $249.00
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 ALLEN BRADLEY 100 A09NA3 NON REVERSING MOTOR CONTACTOR US $19.99
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 ALLEN BRADLEY SIZE 2 REVERSING MOTOR STARTER 505V COD US $199.99
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 GE REVERSING MOTOR FOR SOUTH BEND ATLAS LOGAN LATHE US $73.00
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 TELEMECANIQUE LC2D1201 Reversing Contactor Motor LC2 US $70.00
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 Square D Nema Size 2 8736 SD02 Reversing Motor Starter US $799.99
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 cutler hammer W200M1CFCY4Y7 non reversing starter motor US $325.00
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 CUTLER HAMMER 348 REVERSING MOTOR STARTER w RESET US $99.99
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 Allen Bradley 505 BOD Size 1 reversing motor starter US $249.95
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 Murr Elektronik 6650140 DC Motor Reversing Switch 24VDC US $40.00
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 SQUARE D 2511KG22C REVERSING MOTOR STARTING SWITCH US $99.88
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 Starter Motor Reversing Size 0 Allen Bradley US $232.00
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 Starter Motor Reversing Size 1 Allen Bradley US $262.00
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 Starter Motor Reversing Allen Bradley US $158.00
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 Westinghouse A201K1CX Non Reversing Motor Controller US $175.00
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 Mitsubishi MSO 2XN10 IEC motor starter Reversing NIB US $84.50
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 Mitsubishi S 2XN21 reversing IEC motor starter Nice US $92.50
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 Mitsubishi S N21 reversing IEC motor starter w overload US $149.99
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 Allen Bradley Size 2 Reversing Motor Starter US $450.00
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 CUTLER HAMMER SIZE 5 REVERSING MOTOR STARTER A50GNO US $2,250.00
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 Allen Bradley Reversing Motor Starter 505 AOD A2F 120v US $125.00
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 5X Panel Mount 3PDT Slide Switches Motor Reversing 324 US $3.00
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 Sprecher schuh 25 HP REVERSING MOTOR STARTER US $35.00
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 Telemecanique 15 HP REVERSING MOTOR STARTER US $34.00
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 GE CR309BO Size 0 Reversing Motor Starter Control US $249.95
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 Westinghouse A210M1CX Size 1 Reversing Motor Starter US $849.99
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 GE CR309COCAA Size 1 Reversing Motor Starter Vertical US $329.99
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 Reversing motor starter NEMA size 2 Sq D Class 8736 US $275.00
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 Allen Bradley Motor Starter 509 AOD Ser B Reversing US $21.00
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 509 TOD SERIES B SIZE 00 NON REVERSING MOTOR STARTER US $15.00
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 Telemecanique 2200EBR Reversing Motor Starter Ref US $95.95
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 ALLEN BRADLEY 505 BOD SERIES C REVERSING MOTOR STARTER US $375.00
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 Square D 2510KW2C Motor Switches Non Reversing NEW US $120.00
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 Telemecanique LP2D25004 Reversing Motor Contactor NNB US $284.99
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 Ektron Snap Trol DC Motor Control with Reversing US $173.22
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 allen bradley Starter Motor Reversing Size 1 505 BOD US $200.00
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 Fuji SW 05RM 2E Reversing Motor Starter US $75.00
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 Furnas 43FF32AAAE3 50A Size 2 Reversing Motor Starter US $275.00
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NISCO Fan Co. makes now a truly reversible (exhaust and supply roof fan for general ventilating.
The Type CBRE recirculators are designed for use in commercial and industrial applications where there is sufiicient ceiling height to create a temperature differential between the floor and the ceiling. These applications include factories, warehouses and large commercial buildings.
CBRE Roof Recirculators function as regular power roof ventilators in warmer weather and as an energy-saving recirculation air system in cold weather. Each unit is equipped with a reversible fan that distributes warm ceiling air thoughout the plant and reduces the builing's heating requirements. With a flip of a switch it can function as a conventional roof ventilator. There are two unit types: 1) for exhaust and recirculation; 2) for exhaust, supply and recirculation.
Available fan wheel sizes are from 24" to 60", performances: to 50,000 CFM @ 1/2" WG.
The reversible propeller incorporates specifically engineered airfoil sections and hub size for optimal efficiency and physical strength. Alternate adjustable pitch propeller blades are turned 180 degrees to one another and a double orifice is attached to the fan panel.
Type HS PRVs reliably extract large volumes of hot gases and smoke regardless of building configuration, location and weather conditions. They withstand high temperatures for long periods of time.
Another reliable ventilation system that can operate during a fire is Canada Blower Type HS Heat and Smoke Roof Ventilator. It prevents smoke logging, allows people to escape quickly, minimizes damages to property and contents and enables firemen to attack the fire without hindrance. These power roof ventilators have the added advantage of providing normal day to day ventilation and in many cases can also be fitted with duct work for use in multi storey buildings.
The concept of venting smoke and heat was first outlined by Industrial Risk Insurers (IRI). Use of powered ventilation could eliminate the problems experienced with gravity vents. Specially designed roof mounted exhaust fans would mechanically vent heat and smoke under emergency fire conditions.
The unique Type HS power roof ventilators provide a solution for emergency heat and smoke venting that is dependable under the most extreme circumstances.
All critical components of HS PTV that exposed to the airstream are ferrous construction to withstand high temperature conditions. These heavy gauge materials prevent warping of fan parts and malfunction at high temperatures. This also insures years of trouble-free service in normal daily operation of the PRV.
Belt and bearings are protected from the air stream by enclosing them in a ventilated tube. Design of HS fan incorporates a heat slinger/impeller. It isolates the fan bearings from damaging heat and draws cooler outside air through the motor compartment and over the belt and bearings. A spring load, fusible link activated device automatically opens dampers when temperature at the fan reaches 165 F. Thei enables the fan to function as a gravity ventilator prior to powered operation.
Type HC Power Roof Ventilators have been tested to operate:
- conituously at 650 F;
- 3 Hours at 800 F;
- 1.5 Hours at 1000 F;
- 1/2 Hour at 1,200 F.
Additional information can be found at the NISCO Fan Co. web site http://nisco.net/fanblower.html.
Oleg Tchechel
Industrial Air-Moving Process Designer
NISCO Fan Co.
http://nisco.net/index.html
http://nisco.net/custserv.html
About the Author:
Oleg Tchechel
Developer of Industrial Ventilation Equipment
NISCO Fan Co.
http://www.nisco.net/custserv.html
http://www.nisco.net/inquiry.html
Article Source: ArticlesBase.com - Roof Ventilators for Reversible Building Ventilation
Auto sales end '09 on upswing, Ford surges
DETROIT (Reuters) - Ford Motor Co posted a 33 percent sales gain in December as U.S. auto sales ended 2009 on an upswing after a year when GM and Chrysler went bankrupt and China overtook the United States as the biggest car market.