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Water Cooled Wirewound Resistor

Water Cooled Wirewound Resistor

Water Cooled Wirewound Resistor

Product catalog summary
Overview: The document provides technical specifications for Vishay's Water Cooled Wirewound Resistor (WCR), highlighting its features, specifications, and ordering information.
Features: The WCR offers direct cooling without a heat sink, a better power-to-volume ratio, and optional non-inductive configurations. It can integrate up to six resistive functions on one tube, allowing a single supply for multiple functions.
Standard Electrical Specifications: The WCR models vary in power rating from 1500W to 2500W, with a resistance range of 4.7Ω to 56KΩ and a tolerance of ±5%.
Technical Specifications: The resistors have a temperature coefficient of 100 ppm/°C, a maximum working voltage of up to 3500V, and an operating temperature range from -55°C to +120°C. The core is ceramic, and the winding is made of NiCr alloy, fully insulated from water.
General Characteristics: The resistors use stainless steel hydraulic plugs and are coated with vitreous enamel or silicone. They operate with industrial or deionized water, with coolant mixtures up to 60% glycol. The operating pressure ranges from 1 to 6 bars, with a test pressure of 10 bars.
Dimensions: The document provides detailed dimensions for different WCR models, including water pipe diameter, length, and weight.
Specific Characteristics: Graphs illustrate the nominal power dissipated according to water inlet temperature and flow rate.
Ordering Information: The document outlines the model, style, resistance value, tolerance, and packaging options for ordering.
Legal Disclaimer: Vishay disclaims liability for errors or inaccuracies in the document and emphasizes the customer's responsibility to validate product suitability for specific applications.
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Catalog excerpts

Water Cooled Wirewound Resistor-1

Water Cooled Wirewound Resistor FEATURES • Direct cooling without heat sink • Better power / volume ratio RoHS COMPLIANT • Non-inductive optional • 1 WCR = 6 wirewound resistors = 5 thick-film resistors • Up to 6 resistive functions on 1 WCR tube • 1 single supply for several functions (snubber and divider) • Material categorization: for definitions of compliance please see www.vishav.com/doc?99912 DESIGN SUPPORT TOOLS Models Available Note (1) For PD reason (withstand) Revision: 16-Nov-17 1 Document Number: 32500 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

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Water Cooled Wirewound Resistor-2

DIMENSIONS in millimeters TYPE Notes (1) Creeping / clearance on request (2) Other hydraulic connections on request Revision: 16-Nov-17 2 Document Number: 32500 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

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Water Cooled Wirewound Resistor-3

SPECIFIC CHARACTERISTICS Fig. 1 - Nominal Power Dissipated Fig. 2 - Power Dissipated According to the Flow Rate According to Water Inlet Temperature Pn = f (Flow Rate) Pn = f (Water Inlet Temperature) Temperature = 60 °C Flow Rate = 5 l/min RESISTANCE VALUE TOLERANCE CUSTOM DESIGN MODEL STYLE NON-INDUCTIVE WINDING Optional Other on request special value, tolerance, terminals, etc. GLOBAL PART NUMBER INFORMATION Revision: 16-Nov-17 3 Document Number: 32500 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN...

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Water Cooled Wirewound Resistor-4

Legal Disclaimer Notice www.vishay.com Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.