Product Details

M40FA621A – Varicomp

Marelli Spares Varicomp

$639.00 SGD

M40FA621A – Varicomp

The over-booting device is used for generators MJB 315 – MJB 400 in connection with voltage regulator M25FA600A (or similar types) in case high level of permanent short circuit current should be required. The over-boosting device permits further to sustain excitation current in case of large or sudden overloads, such as starting of A.C. motors. Shunt type AVR do not normally permit to sustain permanently a large fault current such as necessary to let protection devices act: in that case the addition of over-boosting systems, such as VARICOMP, permits to maintain the 3-phase short circuit current over 2.5 times the rated current.

Technical Data:

  • Rated Voltage: 220 V (+/- 25%)
  • Input Current: 5 A (max, continuous)
  • Input Current: 15 A (max forcing one minute)
  • Output Current (DC): 6 A (max, continuous)
  • Output current (DC): 16 A (max one minute forcing)
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  1. All prices and amounts displayed on this website are in Singapore dollars.
  2. Delivery Schedule:
    • Standard 4 to 5 working days ex-warehouse upon confirmation of payment received. (Transit time not inclusive.) If out of stock for some unforeseen reason, please allow 2 to 3 weeks for delivery.
    • During the post COVID-19 pandemic period, some spare parts may require up to 2 working weeks lead time. When the situation improves, we will improve. If you urgently need spare parts for replacement or repair work, please email us to confirm the delivery schedule before placing an order and paying through the online store.
    • For indented parts or items from Italy, it is estimated that it will take 4 working weeks (maybe longer) to ship out after payment is confirmed. (Not including shipping time.)
  3. Receipt: Once the parcel pick up, we will notify you via email. Airway bill no. will also be informed..
  4. Product Origin: Italy
  5. Shipping: All parts are delivered to your door via courier service. All taxes and duties at destination are the responsibility of the buyer. Unless otherwise stated in our other forms.
  6. If you have problems with the online store, please email us ( for an official quote. We will reply to your inquiry as soon as possible.
  7. The above remarks are subject to change without notice, please be sure to check the remarks before confirming your order and making 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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