Circuit Transformer
Todays deals on Circuit Transformer?
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New Firing Circuits 1679-0007 Transformer Assembly $1,000.00 |
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NIB ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER X-231596 1497-N43A 2.0 KVA SN $349.00 |
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ALLEN-BRADLEY 1497-N43 A CONTROL CIRCUIT TRANSFORMER A1 NEW FROM OLD STOCK $300.00 |
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NEW ALLEN BRADLEY 1497-C-BASX-1-N CIRCUIT TRANSFORMER $325.00 |
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Lot of (5) Allen Bradley Control Circuit Transformers P/N 25636-169-01 $334.89 |
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MULTI TAP CT CURRENT TRANSFORMER FOR WESTINGHOUSE DB25 AIR CIRCUIT BREAKER $300.00 |
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G-S HEVI-DUTY CONTROL CIRCUIT TRANSFORMER Y3000 3.0KVA $199.95 |
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ALLEN BRADLEY 1497-N37 1000VA CONTROL CIRCUIT TRANSFORMER NSFP $285.00 |
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ALLEN BRADLEY 1497-N37 CONT.CIRCUIT TRANSFORMER $260.00 |
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NEW ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 0.250 KVA MODEL 1497-N8P $249.99 |
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Lot Of 2 ALLEN BRADLEY CONTROL Circuit Transformer 1497 N1 B $175.00 |
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NIB ALLEN BRADLEY 1497-N40 CONTROL CIRCUIT TRANSFORMER $225.00 |
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Huber Control Circuit Transformers 85/1036 Type EI200 $250.00 |
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ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 1497-N19 SER. A NEW SEALED 1497N19 $200.00 |
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33710 Old-Stock, Allen-Bradley 1497-N2 Control Circuit Transformer 240/480V $158.84 |
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ALLEN BRADLEY 1497-N19 CONTROL CIRCUIT TRANSFORMER NEW $150.00 |
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New RSA Lighting 250 Watt 120 to 12 Volt Transformer T250CB12 w/ circuit breaker $150.00 |
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New Allen-Bradley 1497-N11P Sr A Bulletin 1497 Control Circuit Transformer 350V $169.00 |
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Daykin Electric MDGTA-13 480 Volt Circuit Transformer $165.00 |
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Allen Bradley Control Circuit Transformer 1497-N18-FREE SHIPPING $164.95 |
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ALLEN BRADLEY 1497-N5 CONTROL CIRCUIT TRANSFORMER .200 KVA PART # X-210922 NNB $140.00 |
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ALLEN BRADLEY 1497-N11 CONTROL CIRCUIT TRANSFORMER NEW $125.00 |
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SQUARE D FC34070, 70 A. CIRCUIT BREAKER TRANSFORMER $130.00 |
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NEW ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 1497-N19 $120.00 |
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ALLEN BRADLEY 1497-N8 CONTROL CIRCUIT TRANSFORMER NNB!! $125.00 |
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SQUARE D FC34045, 45 A. CIRCUIT BREAKER TRANSFORMER $110.00 |
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Allen Bradley control circuit transformer 1497-N58 $119.99 |
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NIB ALLEN BRADLEY 1497-N11 CONTROL CIRCUIT TRANSFORMER $109.99 |
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SQUARE D FC34020, 20 A. CIRCUIT BREAKER TRANSFORMER $100.00 |
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NEW CONTROL CIRCUIT TRANSFORMER 75Z1059D1 230/460 $99.99 |
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IMPERVITRAN CONTROL CIRCUIT TRANSFORMER B750BTZ13JK $89.99 |
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Honeywell AT92C1005 Control Circuit Transformer Type 1 Class A $90.00 |
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Allen Bradley control circuit transformer mod. 1497-N19 $100.00 |
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SNC SIGNAL CONTROL CIRCUIT TRANSFORMER P9486 $99.99 |
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G/S TRANSFORMER W/ CIRCUIT BOARD #83-24-260-2 OUTPUT-24VDC,IN-PUT47-4-20Hz $99.00 |
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ALLEN BRADLEY 1497-N16 CONTROL CIRCUIT TRANSFORMER NIB $85.00 |
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ALLEN BRADLEY 1497-N11 CONTROL CIRCUIT TRANSFORMER $85.99 |
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Allen Bradley Control Circuit Transformer 25636-201-01 $79.99 |
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ALLEN-BRADLEY X-211293 Control Circuit Transformer $90.00 |
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GENERAL SIGNAL CONTROL CIRCUIT TRANSFORMER T1000 $89.99 |
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Instrument Transformers INC C/N 952458D CIRCUIT BREAKER $75.00 |
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ALLEN BRADLEY NIB 1497-D-BASX-1-N CONTROL CIRCUIT TRANSFORMER $75.00 |
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Allen Bradley X-343858 Control Circuit Transformer $75.00 |
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Allen Bradley Control Circuit Transformer 120V 1497-N34 750VA $84.99 |
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Allen Bradley Control Circuit Transformer 1497-N40 120V $84.99 |
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Allen Bradley Control Circuit Transformer 1497-N8 Ser A $84.60 |
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Allen Bradley Control Circuit Transformer 25636-169-01 $83.29 |
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(#1338) Allen Bradley Transformer Control Circuit 1497-N8 $70.00 |
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Square D Control Circuit Transformer 9070 E0-1 B *NEW* $79.99 |
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SQUARE D CONTROL CIRCUIT TRANSFORMER MODEL 9070 E0-1 $69.99 |
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ALLEN BRADLEY NEW NO BOX 1497-D-BASX-1-N CONTROL CIRCUIT TRANSFORMER (U1) $68.50 |
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Allen Bradley 1497 N2 Control Circuit Transformer .75 KVA $59.99 |
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ALLEN BRADLEY 1497-N2 NEW CONTROL CIRCUIT TRANSFORMER 1497N2 $65.00 |
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NEW Allen Bradley 1497-N2 Control Circuit Transformer $65.00 |
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ALLEN BRADLEY CIRCUIT TRANSFORMER 1497-C-BASX-3-N $75.00 |
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ALLEN BRADLEY CIRCUIT TRANSFORMER 1497-NZ B $75.00 |
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Allen Bradley Transformer 1497-C-BASX-3-N Series A Control Circuit 240/480V 60Hz $73.95 |
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AB ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER X-343858 TYPE SN NEW $60.00 |
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Allen Bradley X-326539 SN Control Circuit Transformer .250 KVA $52.00 |
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SQUARE D CONTROL CIRCUIT TRANSFORMER EO-16, SERIES B $70.00 |
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SQUARE D 9070 E0-1 CONTROL CIRCUIT TRANSFORMER 83161 NEW CONDITION IN BOX $68.00 |
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Allen-Bradley Control Circuit Transformer X-210902 $39.15 |
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Allen Bradley Control Circuit Transformer 1497-F-CXSX-O $39.15 |
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Allen Bradley 1497-N11 CONTROL CIRCUIT TRANSFORMER S. A $54.09 |
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NIB Allen-Bradley Control Circuit Transformer 1497 N2 Series B_1497 N2 B_.075KVA $65.00 |
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Allen Bradley Control Circuit Transformer .350 Kva $50.00 |
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ALLAN BRADLEY CONTROL CIRCUIT TRANSFORMER 1497-N8 $65.00 |
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Mini-Circuits, 50-75 OHM RF Transformer, FT-1.5-1 $59.95 |
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CONTROL CIRCUIT X-210902 1497-N6A TRANSFORMER ***XLNT*** $49.00 |
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NEW Allen Bradley Control Circuit Transformer 350VA 1497-N11 NIB $63.74 |
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ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER $50.00 |
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ALLEN BRADLEY # 1497-N16 CONTROL CIRCUIT TRANSFORMER $48.00 |
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Allen-Bradley Control Circuit Transformer 1497-B-M4-3-N $49.95 |
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Square D 9070E04D1 Control Circuit Transformer 0.3KVA 240/480-120 Single NEW $49.95 |
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Allen Bradley Control Circuit Transformer .250 Kva $35.00 |
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Square D Control Circuit Transformer 9070 EG-2 *NEW* $45.00 |
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NEW General Electric GE 500VA Control Circuit Transformer 9T58B50 NIB $59.49 |
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NEW SQUARE D 9070 EO-71 CONTROL CIRCUIT TRANSFORMER $34.80 |
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MOELLER PKZM0-16-T TRANSFORMER PROTECTIVE CIRCUIT BREAKER $49.00 |
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ALLEN BRADLEY 1497-N16 CONTROL CIRCUIT TRANSFORMER X-183222 240/280V TO 120V NNB $43.99 |
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SQUARE D 83161 CONTROL CIRCUIT TRANSFORMER 9070 E0-1 B $39.95 |
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Cutler Hammer C340DNE Control Circuit Transformer $54.00 |
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stancor Circuit Transformer power product 115-230 v $45.00 |
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ALLEN-BRADLEY X-210922 Control Circuit Transformer $50.40 |
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Innovative Circuit ICT4812-20A – Converter, 24/48 (20-65v) -12V, 20A Transformer $50.00 |
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ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 1497-N19 $50.00 |
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#SQUARE D CONTROL CIRCUIT TRANSFORMER $49.99 |
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ACME ELECTRIC CONTROL CIRCUIT TRANSFORMER TA-81215 $49.99 |
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JEFFERSON ELECTRIC CONTROL CIRCUIT TRANSFORMER 636-1491 $49.99 |
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TRR01785 Transformer; Heavy Duty With Circuit Breaker, 75 Va, 120/208/240/480 Pr $39.99 |
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Allen-Bradley 1497-B-M4-3-N Control Circuit Transformer $49.00 |
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Allen Bradley Control Circuit Transformer 1497-N16 $47.95 |
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Square D 9070 EO-1 Control Circuit Transformer $30.00 |
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ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 1497-A-BASX-1-N SER. A NEW 1497ABASX1N $35.00 |
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SQUARE D CONTROL CIRCUIT TRANSFORMER TYPE EO-4 $30.00 |
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ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 42185-800-01 $45.00 |
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MOELLER PKZM0-10-T TRANSFORMER PROTECTIVE CIRCUIT BREAKER $39.00 |
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Allen Bradley Control Circuit Transformer 130VA 1497-N16 NIB $42.49 |
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Hevi-Duty Fincor Control Circuit Transformer 1039818-08 350VA $42.49 |
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Hevi-Duty Industrial Control Circuit Transformer 0.750 kVA T750Y $42.49 |
Circuit Transformer Questions
What Is A Control Transformer Use For?
A control transformer is needed in an electronic circuit that needs constant voltage, or constant current with a lower power, or even volt-amp rating. Generally, it is used together with other filtering devices-such as capacitors-to minimize the differences in the output. Hence, the result will be more constant current or voltage.
A controller transformer is used for industrial applications where electromagnetic devices are also used. Examples of the so called electromagnetic devices include relays and solenoids. With this transformer, it is possible to maximize inrush capability and output voltage regulation, when the electromagnetic devices are energized.
These transformers offer isolation to control components from lighting circuits, and power surges. They also maintain good power regulation under inrush conditions. The inrush current needed for control elements can be 15 times the nominal rating of the transformer. During the active inrush current, the transformer maintains steady as possible the voltage that powers the control element.
These transformers embody high-quality insulating materials, which are crucial to electrically insulate turn to turn windings, primary to secondary windings, layer to layer windings, and ground. A control transformer is vacuum-impregnated with VT polyester resin.
It is also oven-cured to seal the surface and eliminate moisture. It is important to fill the entire unit because it provides a strong mechanical bond. It also offers protection from the environment.
If you need to have proper control transformer specifications, there are three characteristics of a load circuit that you need to determine; besides the minimum voltage needed to operate the circuit.
These three characteristics are the Total Steady-state, Total Inrush, and Inrush Load Power Factor. The Total Steady-state (sealed) VA is volt-amperes that the transformer should deliver to the load circuit for an extended period of time. It is also the amount of current needed to hold the contact within the circuit.
The Total Inrush VA is volt-amperes that the transformer should deliver during initial energizing of the control circuit. The energizing of electromagnetic devices may take 30 to 50 milliseconds. During the inrush period, the electromagnetic controls device may draw normal current several times, which can be between 3 and 10 times.
The Inrush Load Power factor is hard to identify without the detailed vector analysis of all the load components. This analysis, however, is unfeasible. Hence, your safe assumption is 40% power factor. But, there are transformer manufacturers that recommend a power factor of 20%.
It is important that the control transformer matches the load including all electrically energized components in the addressed control circuit, to ensure proper operation. The industrial transformer manufacturers offer selection tables, which are really helpful in determining the appropriate transformer, for the specific application in order for the equipment to be powered correctly.
For more information on control transformer, you can contact the nearest electrical store. They have electricians and electrical engineer who could help you with your needs. You can also browse the web for articles, discussions and tips.
About the Author
If you need transformers of various kinds, we have them at http://www.relectric.com/ . These control transformers provide your circuits with the power they need to function properly. Go to <a href=”http://www.relectric.com/Transformers”>Controller transformer</a>, to see the specifications of these transformers.
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