Product Details

M40FA640A – Automatic Voltage Regulator

Marelli AVR M40FA640A /A for MJB 250, 315, 355, 400, 450 and 500.

$914.00 SGD

M40FA640A – Automatic Voltage Regulator

The voltage regulator type “MARK I”, is suitable for synchronous generators for Marelli make MJB series, size range 160-500 frames. The regulator is proper to operate on machines rated from 10 up to 2000kVA. The regulator is fully insulated in order to maintain high reliability also with severe ambient conditions (high level of humidity, dust, salt atmosphere), and in case of high vibrations level. The regulator is proper both for single and 3-phase operation.

Technical Data
– Regulation Accuracy: +/- 0.5% steady state conditions
– Voltage Drift: +/- 0.5% voltage for 50 ° C amb. temperature change
– Respond Time: 1 cycle (20ms – 16.6ms)
– Operating Temperature: -30 ° C – 70 ° C
– Exciter Field Resistance: 3.5 Ω (min) ÷ 20 Ω (max)
– Supply Voltage: 170 -277 V (50/60Hz)
– Power Supply: 1000VA (max)
– Power Dissipated: 30 W (max)
– Voltage Sensing: 170 -270 / 380 – 415 / 440 – 480 V (Three or Single Phase Sensing)
– Output voltage (DC): 30 V
– Output Current (DC): 8 A (max, continuous)
– Output current (DC): 15 A (max one minute forcing)

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Remarks:
  1. All price and amounts indicate in this site are in SINGAPORE DOLLARS currency.
  2. Delivery Schedule:
    • Standard 4 to 5 working days ex-warehouse upon confirmation of payment received. (Transit time not inclusive.) In the event of some unforeseen reason out of stock, please allow 2 to 3 weeks lead time.
    • During post COVID-19 pandemic period, some spares may need up to 2 working weeks lead time. We shall improve when situation get better. Should you need spares for replacement or repair work urgently, kindly do send us email to confirm the delivery schedule before placing order and payment via online shop.
    • For Indent part or items from Italy, estimated 4 working weeks (maybe longer) ex-warehouse upon confirmation of payment received. (Transit time not inclusive.)
  3. Receipt: Once the parcel pick up, we will notify you via email. Airway bill no. will be advise as well.
  4. Product Origin: Italy
  5. Shipping: All parts ship door to door via courier service. All taxes and duty fees at destination at buyer cost. Unless otherwise stated in our other formality.
  6. Should you face problem with the online store, please do send us email (csd@marellispares.com) to request for official quotation. We will respond to your enquiry asap.
  7. Above remarks change without prior notice, kindly always check the remarks before you make any confirmation of order and payment.
Origin - Italy

Most parts sold origin from Marelli's factory in Italy. Unless some accessories or diodes may not produce by factory.

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