Bulletin 1497 Global Control Transformers
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1 Bulletin 1497 Global Control Transformers Bulletin 1497 Multi Tap Transformers 1497 A M1 3 N VA Rating and Voltage Fuse Block Options Factory Installed Options Code Description Code Code Block Options Code Description A 63 VA M1 240V, 208V 120V (60 Hz) 0 0, 0 N No Fusing, No Cover B 80 VA M2 240V, 208V 24V (60 Hz) 1 0, 1 C 130 VA M3 240V, 208V 24V, 120V (60 Hz) 2 2, 0 D 200 VA M4 415V, 400V, 380V 115X230V (50 Hz) 3 2, 1 E 250 VA M5 415V, 400V, 380V 24V (50 Hz) F 350 VA G H J K L M 500 VA 750 VA 800 VA 1000 VA 1600 VA 2000 VA Bulletin 1497 Transformers 1497 A BADX 3 N VA Rating and Voltage Fuse Block Options Factory Installed Options Code Description Code Code Block Options Code Description A 63 VA HX 208V (60 Hz) 0 0, 0 N No Fusing, No Cover B 80 VA AX 240V (60 Hz), 220V (50 Hz) C 130 VA BA 240X480V (60 Hz), 220X440V (50 Hz) D 200 VA CX 600V (60 Hz), 550V (50 Hz) 1 0, 1 2 2, 0 3 2, 1 E 250 VA DX 120V (60 Hz) F 350 VA JX 24V (60 Hz) G 500 VA SX 120V (60 Hz), 110V (50Hz) H 750 VA JK 24V (50 Hz), 26V (60 Hz) J 800 VA K L M 1000 VA 1600 VA 2000 VA When the primary voltage code BA is selected and a 120V AC secondary is desired, the secondary voltage code SX should be selected. VA rating codes G, H, or J with primary voltage over 500V have only culus approval. Not available for use with primary voltage code BA. VA rating codes H M are only available with no fuse block option (0). Selecting a Control Circuit Transformer For proper transformer selection, three characteristics of the load circuit must be determined in addition to the minimum voltage required to operate the circuit. These
2 are total steady-state (sealed) VA, total inrush VA, and inrush load power factor. Total steady state (sealed) VA is the volt amperes that the transformer must deliver to the load circuit for an extended period of time the amount of current required to hold the contact in the circuit. Total inrush VA is the volt amperes that the transformer must deliver upon initial energization of the control circuit. Energization of electromagnetic devices takes milliseconds. During this inrush period, the electromagnetic control devices draw many times normal current 3 10 times normal is typical. Inrush load power factor is difficult to determine without detailed vector analysis of all the load components. Such an analysis is generally not feasible. Therefore, a safe assumption is 40% power factor. Selection Process 1. Determine the total inrush VA of the control circuits from the table below. Do not neglect the current requirements of indicating lights and other devices that do not have an inrush VA but are re-energized at the same time as the other components in the circuit. Their total VA should be added to the total inrush VA. 2. Refer to the table below, Regulation Data Inrush VA. If the supply circuit voltage (Step 1) is reasonably stable and fluctuates not more than ± 5%, refer to the 90% secondary voltage column. If it fluctuates as much as ± 10%, refer to the 95% secondary voltage column. Go down the column selected until at the inrush VA closest to, but not less than, the inrush VA of the control circuit. 3. Read to the far left side of the chart. The transformer s continuous nominal VA rating is now selected. The secondary voltage that will be delivered under inrush conditions will be either 85%, 90%, or 95% of the rated secondary voltage, depending on the column selected from the table below, Regulation Data Inrush VA. The total sealed VA of the control circuit must not exceed the nominal VA rating of the transformer selected from the table below, Typical Magnetic Motor Starter and Contactor Data 60 Hz, 120 Volt, 3-Pole. 4. Refer to the specification tables on the following pages to select a transformer according to the required continuous nominal VA, and primary and secondary voltage combinations. Regulation Data Inrush VA Inrush VA at 40% Power Factor Power Factor Adjustments Nominal VA Rating 85% 90% 95% Power Factor Multiply By % % % % % % % % % % Typical Magnetic Motor Starter and Contactor Data 60 Hz, 120 Volt, 3-Pole Contactor NEMA Size Bulletin VA Inrush VA Sealed Note:Refer to Selecting a Control Circuit Transformer for information on how to select a control circuit transformer.
3 Continuous VA Cat. Nos. 208V (60 Hz) 240V (60 Hz)/220V (50 Hz) 240X480V (60 Hz) or 220X440V (50 Hz) 208V 240V/ 220V 120V 120V/110V 24V (60 Hz) 120V (60 Hz) 26V (60 Hz)/ 24V (50 Hz) 120V (60 Hz)/ 110V (50 Hz) 26V (60 Hz) or 24V (50 Hz) 120V (60 Hz) or 110V (50 Hz) A-HXJX-0-N 1497-A-HXDX-0-N 1497-A-AXJK-0-N 1497-A-AXSX-0-N 1497-A-BAJK-0-N 1497-A-BASX-0-N B-HXJX-0-N 1497-B-HXDX-0-N 1497-B-AXJK-0-N 1497-B-AXSX-0-N 1497-B-BAJK-0-N 1497-B-BASX-0-N C-HXJX-0-N 1497-C-HXDX-0-N 1497-C-AXJK-0-N 1497-C-AXSX-0-N 1497-C-BAJK-0-N 1497-C-BASX-0-N D-HXJX-0-N 1497-D-HXDX-0-N 1497-D-AXJK-0-N 1497-D-AXSX-0-N 1497-D-BAJK-0-N 1497-D-BASX-0-N E-HXJX-0-N 1497-E-HXDX-0-N 1497-E-AXJK-0-N 1497-E-AXSX-0-N 1497-E-BAJK-0-N 1497-E-BASX-0-N F-HXJX-0-N 1497-F-HXDX-0-N 1497-F-AXJK-0-N 1497-F-AXSX-0-N 1497-F-BAJK-0-N 1497-F-BASX-0-N G-HXJX-0-N 1497-G-HXDX-0-N 1497-G-AXJK-0-N 1497-G-AXSX-0-N 1497-G-BAJK-0-N 1497-G-BASX-0-N H-HXJX-0-N 1497-H-HXDX-0-N 1497-H-AXJK-0-N 1497-H-AXSX-0-N 1497-H-BAJK-0-N 1497-H-BASX-0-N J-HXJX-0-N 1497-J-HXDX-0-N 1497-J-AXJK-0-N 1497-J-AXSX-0-N 1497-J-BAJK-0-N 1497-J-BASX-0-N K-HXJX-0-N 1497-K-HXDX-0-N 1497-K-AXJK-0-N 1497-K-AXSX-0-N 1497-K-BAJK-0-N 1497-K-BASX-0-N L-HXDX-0-N 1497-L-AXSX-0-N 1497-L-BASX-0-N M-HXDX-0-N 1497-M-AXSX-0-N 1497-M-BASX-0-N With 2 Pole and 1 Pole Top Mounted Fuse Block Fuses Not Included A-HXJX-3-N 1497-A-HXDX-3-N 1497-A-AXJK-3-N 1497-A-AXSX-3-N 1497-A-BAJK-3-N 1497-A-BASX-3-N B-HXJX-3-N 1497-B-HXDX-3-N 1497-B-AXJK-3-N 1497-B-AXSX-3-N 1497-B-BAJK-3-N 1497-B-BASX-3-N C-HXJX-3-N 1497-C-HXDX-3-N 1497-C-AXJK-3-N 1497-C-AXSX-3-N 1497-C-BAJK-3-N 1497-C-BASX-3-N D-HXJX-3-N 1497-D-HXDX-3-N 1497-D-AXJK-3-N 1497-D-AXSX-3-N 1497-D-BAJK-3-N 1497-D-BASX-3-N E-HXJX-3-N 1497-E-HXDX-3-N 1497-E-AXJK-3-N 1497-E-AXSX-3-N 1497-E-BAJK-3-N 1497-E-BASX-3-N F-HXJX-3-N 1497-F-HXDX-3-N 1497-F-AXJK-3-N 1497-F-AXSX-3-N 1497-F-BAJK-3-N 1497-F-BASX-3-N G-HXJX-3-N 1497-G-HXDX-3-N 1497-G-AXJK-3-N 1497-G-AXSX-3-N 1497-G-BAJK-3-N 1497-G-BASX-3-N Top mounted fuse blocks are not available for transformers 750VA and higher. Note:Refer to Selecting a Control Circuit Transformer for information on how to select a control circuit transformer.
4 Continuous VA Cat. Nos. 600V (60 Hz)/550V (50 Hz) 380V, 400V, 415V (50 Hz) 550V 600V 120V/110V 26V (60 Hz)/24V (50 Hz) 120V (60 Hz)/110V (50 Hz) 115V/230V (50 Hz) A-CXJK-0-N 1497-A-CXSX-0-N 1497-A-M4-0-N B-CXJK-0-N 1497-B-CXSX-0-N 1497-B-M4-0-N C-CXJK-0-N 1497-C-CXSX-0-N 1497-C-M4-0-N D-CXJK-0-N 1497-D-CXSX-0-N 1497-D-M4-0-N E-CXJK-0-N 1497-E-CXSX-0-N 1497-E-M4-0-N F-CXJK-0-N 1497-F-CXSX-0-N 1497-F-M4-0-N G-CXJK-0-N 1497-G-CXSX-0-N 1497-G-M4-0-N H-CXJK-0-N 1497-H-CXSX-0-N 1497-H-M4-0-N J-CXJK-0-N 1497-J-CXSX-0-N 1497-J-M4-0-N K-CXJK-0-N 1497-K-CXSX-0-N 1497-K-M4-0-N L-CXSX-0-N 1497-L-M4-0-N M-CXSX-0-N 1497-M-M4-0-N With 2 Pole and 1 Pole Top Mounted Fuse Block Fuses Not Included A-CXJK-3-N 1497-A-CXSX-3-N 1497-A-M4-3-N B-CXJK-3-N 1497-B-CXSX-3-N 1497-B-M4-3-N C-CXJK-3-N 1497-C-CXSX-3-N 1497-C-M4-3-N D-CXJK-3-N 1497-D-CXSX-3-N 1497-D-M4-3-N E-CXJK-3-N 1497-E-CXSX-3-N 1497-E-M4-3-N F-CXJK-3-N 1497-F-CXSX-3-N 1497-F-M4-3-N G-CXJK-3-N 1497-G-CXSX-3-N 1497-G-M4-3-N Transformers VA with 500V primary do not carry the CE mark. Top mounted fuse blocks are not available for transformers 750VA and higher. Fuse Sizing Charts Important: Select the fuse to protect the control circuit conductors in accordance with the National Electrical Code. Fuse Sizing Chart (When Only Protection is Used) Maximum Amp Rating for Current Limiting Fuses Based on Transformer Voltage and the National Electrical Code VA 208V 220V 240V 277V 347V 380V 400V 415V 440V 480V 500V 550V 600V 690V
5 Fuse Sizing Chart (When and Protection is Used) Maximum Amp Rating for Current Limiting Fuses Based on Transformer Voltage and the National Electrical Code VA 208V 220V 240V 277V 347V 380V 400V 415V 440V 480V 500V 550V 600V 690V Fuse Sizing Chart Maximum Amp Rating for Current Limiting Fuses Based on the National Electrical Code VA 24V 110V 115V 120V 230V Copyright 2014 Rockwell Automation, Inc. All Rights Reserved.
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The AVR voltage regulator and PLC power conditioner product lines consists of over 250 standard units arranged in 29 different voltage families to provide 95% coverage of day-to-day application needs.