Powerohm Products

TYPE ERB EDGEWOUND: Type ERB bar-mounted edgewounds are availablewith the sameelectrical ratings as theTypeERedgewounds. All unitshave thesameapproximatediameter of 2 inches. Unitsare furnished with a through-bar and terminal hardware. Type ERB Coil Dimensions & Tap Options TYPE ERB (BAR-MOUNT) EDGEWOUND DIMENSIONS

STANDARDCOILDIMENSIONS

LENGTH

A

B

7-7/8

2

9-1/4

FRONTVIEW

SIDEVIEW

10-7/8

3

12-1/4

3/8 DIA.

13-7/8

4

15-1/4

(2) 17/32 SLOTS

16-7/8

5

18-1/4

3

1-1/4

19-7/8

6

21-1/4

B A

22-7/8

7

24-1/4

ADDITIONAL TAPS

Type ER resistors are furnished with two stainless steel terminals at either end of the ceramic core. Additional fixed taps consist of a stainless steel terminal welded in place at various intervals. Numerous tap configurations are available, but limited to a spacing no closer than 1-1/4 inches.

SPECIFY PART NUMBERS AS FOLLOWS:

-

For example, the part number of a Type ER, 50 amp, 0.51 ohm coil with 2 taps at 1/3 spacing is ER5-50-2C. See below for additional part number examples.

Part Number

Number of Taps Spacing (See Table)

Other examples of ER Edgewound Resistors with additional taps.

ADDITIONAL TAPS&SPACINGCHART FRACTIONAL SPACING SUFFIX LETTER

1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9

B C D E F G H J K L M N P R S T

ER3-50-1D (1 TAP@ 1/4 SPACING)

1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17

(5 TAP@ 1/6 SPACING) ER3-50-5F