200W ÷ 500W

Hermetic aluminum case wire wound power resistor.

IP65, high overload capacity, heat-sink mounting.

Dynamic braking, charge / discharge capacitor.

Industrial automation, Energy.

External thermal switch, internal fuse.


The resistor housing is marked with laser printing with the following information:
Batch:WW/YY (week/year)
Thermal switch: Yes or Not
Fuse: with or without
Name of product: RFP
Model: 200/300/400/500
Version H: (Horizontal) / V (Vertical)
Ohmic value and tolerance (Ohm): 150R 10%
Rated power (W): 200 / 250 / 280 / 300 / 370 / 400 / 500
cULus logo
A warning symbol for high temperature is printed on the case.


The resistor is packed in a way to preserve incidental damage during transport. To avoid handling damage it is recommended to never pull on the resistor cables and to handle with care during removal of the resistor from the original factory packaging.


Every effort has been made to ensure that the information in this datasheet is accurate. Fairfild is not responsible for printing or clerical errors. All properties and characteristics mentioned in this datasheet are only for informational purposes. The information in this datasheet is offered solely for your consideration and should not be taken as a warranty or representation for which we assume legal responsibility. The customer bears all responsibility for use and application of Fairfild products. There is no responsibility of the manufacturer for any damage to persons and properties in case of improper use. Fairfild reserves the right to change specifications without prior notice.


This datasheet is subject to copyright. Fairfild reserves all rights of translation in any language, reprinting, re-use of illustrations.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic, mechanical, photocopying, without the written permission of the copyrighted owner Fairfild, Italy. Violations may be subject to legal proceedings involving monetary damages as well as compensation for costs and legal fees under Italian copyright law and regulation within the European Union.

Ordering information

In the order must be specified:
Version: H (Horizontal) / V (Vertical) – with or without fuse
Thermal switch: Yes or Not
Model: 200 / 300 / 400 / 500
Ohmic value and tolerance (Ohm): 150R 10%