I tend to pick overload heaters from the manufacturer's overload heater chart and not the book anyhow. Web match the trip amps of your starter to the trip amps value below the starter size of the appropriate table. Most heat loss happens overnight. Web standard trip — class 20 heater selection. Up to 400° c (up to 752° f) parts included:
Web a class 30 overload relay will trip in 30 seconds or less at a current equal to 600 percent of its rating. Single phasemotor full load amps of the same horsepower, voltage and speed vary over wide ranges. Most heat loss happens overnight. Items of these heaters, being ordered for either customer’s stock or any other purpose, are to be specified in multiples of three (such as 3, 6, 9, 12, 15, etc.). Heater table number is found in the column under the type of overload and phase.
Web class 9065 catalog for overload relays and thermal unit selection. (1) heater packs are shipped 3 to a carton. Web b controller size b motor amp b phase 1. Minimum order quantity is three. Web to select heater catalog number use b product class b controller size b motor amp b phase 1.
westinghouse overload heater sizing chart Focus
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Overload Heater Size Chart
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Overload Heater Sizing Chart
Square D Thermal Overload Chart A Visual Reference of Charts Chart
Square D Overload Chart
Allen Bradley Overload Heater Chart
Overload Heater Size Chart
Square D Overload Heater Chart
All cr123k and 123l heaters are packaged three to a carton. The choice should be as close as possible but not greater than the selected trip amp value in the table to allow for proper protection. Web reliable motor protection, select heater elements by using the full load motor nameplate amps. Web a class 20 overload relay will trip in 20 seconds or less at a current equal to 600 percent of its rating. Refer to the specified table and use the controller size and motor amps to Web to select heater catalog number use b product class b controller size b motor amp b phase 1. Standard ceramic ntip size chart. Refer to the specified table and use the controller size and motor amps to select the heater catalog number. Find heater table number below, using the product class, controller size and phase. Web for fully reliable motor protection, select heater coils on the basis of full load current rating as shown on the motor nameplate. Web match the trip amps of your starter to the trip amps value below the starter size of the appropriate table. Web standard trip — class 20 heater selection. This is simply the recommended minimum size. Heater selection — type a and b overload relays, sizes 3 and 4. The job of a pool heater is to replenish the heat loss at the surface of your pool.
Web Therefore, The Minimum Size Heater Recommended For A 15 X 30 Pool Is 150,000 Btus.
Web the type a thermal overload relay (olr) is a bimetallic device which, with the properly selected wire and heaters, will provide motor protection for running and stalled rotor overloads in motor circuits not exceeding 600 volts. The choice should be as close as possible but not greater than the selected trip amp value in the table to allow for proper protection. Web the best (and easiest) way to size a new pool heater is to calculate the surface area of your pool, and use one of the previously mentioned equations to find the minimum recommended btu output. If motor amps are not.
Please Note, After Putting In Your Measurements, Our Pool Heater Calculator Will Ask You To Put In The Current Temperature Of Your Pool And The Desired Temperature.
Standard ceramic ntip size chart. (1) heater packs are shipped 3 to a carton. Find heater table number below, using the product class, controller size and phase. Heater table number is found in the column under the type of overload and phase.
This Document Also Includes Application Data And Approximate Dimensions.
Minimum order quantity is three. Web standard trip — class 20 heater selection. Web enter your swimming pools size below to see which pool heater is right for you! Nema control siemens industrial control products heater tables and replacement parts 17 size heater.
Find Heater Table Number Below, Using The Product Class, Controller Size And Phase.
The size 1 and 2 olr’s have a maximum current rating of 26.2 and 45.0 amperes respectively. Web the type a thermal overload relay (olr) is a bimetallic device which, with the properly selected wire and heaters, will provide motor protection for running and stalled rotor overloads in motor circuits not exceeding 600 volts. Heater table number is found in the column under the type of overload and phase. Select in order, the base catalog number, the nema type of enclosure, and the column to be used in the proper table by nema size.