Ohmite PFE Series, PFR Series Catalog Page

Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail] 49

PFE and PFR Series

2.063" -0/+.187

52.400 mm -0/+4.763

2.313"

58.750 mm

1.00"

25.400 mm

0.531"

13.494 mm

17.875" ±.063

454.02 mm

16.250" ±.063

412.75 mm

1.00"

25.400 mm

0.750"

19.050 mm

0.531"

13.494 mm

Terminal 2172B (30 amps & more)

Terminal 2172G (29 amps & less)

PFE5K
Edgewound

1.00"

25.400 mm

0.531"

13.494 mm

17.875" ±.063

454.02 mm

16.250" ±.063

412.75 mm

1.00"

25.400 mm

0.750"

19.050 mm

0.531"

13.494 mm

PFR5K
Round wire

2.625" -0/+.187

66.67 mm -0/+4.763

Terminal 2175

(standard on

8.3 amps & less)

Terminal 2176

(optional for 90

°

terminal mounting)

1.688"

42.875 mm

A

B

A

B

Standard:

Standard:

         

Style

PFE = Edgewound
PFR = Roundwire

# of
Sections

2 5
3 6
4 7
8

Tolerance

K = 10%

Ohms

R100 = 0.10
1R00 = 1.0
10R0 = 10

RoHS Compliant

Powr-Rib® Edgewound
Edgewound and Round Wire

Designed in both Edgewound
and Round Wire formats,
these rugged resistors
can handle 700 to 1000
Watts of power. Specify our
Edgewound design for very
low resistance and high power
capacity. When higher resis­tance with lower power capac­ity is required use our Round
Wire design.

Constructed of a heavy
resistance alloy mounted on
ceramic insulators and sup­ported by a metal mounting
bracket. Metal parts, except
for the resistance element,
are heavily plated to prevent
oxidation at high operating
temperatures and to prevent
corrosion. The mounting bar is
slotted on each end to facili­tate installation. Edgewound
units provide clamp-type termi­nals, permitting a reliable con­nection which can be moved
along the resistive element to
obtain intermediate values.

All values for reference only; Consult factory for details.

S P E C I F I C A T I O N S

Electrical
Current Rating: Continuous duty

O R D E R I N G I N F O R M A T I O N

as listed on following page.

Wattage Rating: 700 to 1,000 (up

to 1,600 watts on special order)

Resistance Tolerance: ±10%

standard, ±5% available

Terminals: Clamps, movable

along resistor wire for setting
intermediate resistance values
on Edgewound units (current
must be derated in proportion).

Temperature Coefficient:

±300 ppm/°C for resistors 50

amps and more

S TA N D A R D P A R T N U M B E R S

EDGEWOUND
Ohms Part # Amps

0.1  PFE5KR100E 100

0.12  PFE5KR120E 91

0.14  PFE5KR140E 89

0.16  PFE5KR160E 78

0.18  PFE5KR180E 75

0.22  PFE5KR220E 68

0.25  PFE5KR250E 63

0.3  PFE5KR300E 57

0.33  PFE5KR330E 54

0.37  PFE5KR370E 50

0.5  PFE5KR500E 47

0.6  PFE5KR600E 43

0.67  PFE5KR670E 41

0.75  PFE5KR750E 39
1  PFE5K1R00E 33

1.3  PFE5K1R30E 29

1.6  PFE5K1R60E 26

2.2  PFE5K2R20E 18.4

2.8  PFE5K2R80E 16.3

3.5  PFE5K3R50E 14.6

4.5  PFE5K4R50E 12.7

5.4  PFE5K5R40E 11.8

6.8  PFE5K6R80E 10.3

8.5  PFE5K8R50E 9.4

48 Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail]

ROUNDWIRE
Ohms Part # Amps

11  PFR5K11R0E 8.3

13  PFR5K13R0E 7.6
17  PFR5K17R0E 6.6
20  PFR5K20R0E 5.9
25  PFR5K25R0E 5.1

 = Standard values

 = Non-standard values subject

to minimum handling
charge per item.

Check product availability at

www.ohmite.com

Our Tech Center is open 10am to

2pm CT Tuesdays and Thursdays,

just call 866-9-OHMITE

±500 ppm/°C for resistors 47

amps or less

Ohmic Values: See chart on fol-

lowing page.

Mounting: Metal mounting bar is

slotted on each end to facilitate
installation.

Edgewound units have clamp-

type terminals which permits
a reliable connection and can
be moved along the resistive
element to obtain intermediate
values.

Ordering Information

See Part Number chart for stan-

dard resistance values when
ordering.

PFE and PFR Series

Powr-Rib® Edgewound

Edgewound and Round Wire

(continued)

P F E E D G E W O U N D “ P O W R - R I B ” E L E C T R I C A L I N F O R M A T I O N

STANDARD*
Size* (No. of Insulator-Sections Long) 2 3 4 5 6 7 8

Dimension A in. 8.875 11.875 14.875 17.875 20.875 23.875 26.875
mm (225.425) (30.163) (377.825) (454.025) (530.225) (606.425) (682.625)

Dimension B in. 7.250 10.250 13.250 16.250 19.250 22.250 25.250
mm (184.150) (31.750) (336.550) (412.75) (488.950) (565.150) (641.350)

Max. Amps Ohms Ohms Ohms Ohms Ohms Ohms Ohms

100 .033 .057 .080 .100 .120 .140 .160
91 .040 .070 .100 .120 .140 .160 .180
89 .046 .078 .110 .140 .170 .200 .230
78 .052 .088 .120 .160 .190 .220 .250
75 .060 .100 .140 .180 .210 .250 .300

68 .070 .120 .180 .220 .260 .300 .340
63 .080 .130 .190 .250 .300 .350 .400
57 .100 .160 .230 .300 .360 .420 .480
54 .110 .180 .250 .330 .400 .470 .540
50 .120 .200 .280 .370 .450 .530 .610

47 .170 .280 .380 .500 .600 .700 .800
43 .210 .330 .460 .600 .720 .850 .980
41 .230 .360 .510 .670 .800 .930 1.06
39 .260 .420 .580 .750 .900 1.05 1.20
33 .350 .560 .770 1.00 1.20 1.40 1.60

29 .450 .730 1.00 1.30 1.50 1.75 2.00
26 .560 .900 1.20 1.60 1.90 2.20 2.50

18.4 .690 1.20 1.70 2.20 2.70 3.10 3.50

16.3 .880 1.50 2.20 2.80 3.40 4.00 4.60

14.6 1.10 1.90 2.70 3.50 4.30 5.10 5.90

12.7 1.40 2.40 3.50 4.50 5.50 6.50 7.50

11.8 1.70 2.90 4.20 5.40 6.60 7.80 9.00

10.3 2.10 3.70 5.30 6.80 8.30 9.80 11.3

9.4 2.70 4.60 6.50 8.50 10.40 12.3 14.2

P F R R O U N D - W I R E “ P O W R - R I B ” E L E C T R I C A L I N F O R M AT I O N

8.3 3.4 5.9 8.5 11.0 13.5 16.0 18.5

7.6 4.1 7.1 10.0 13.0 15.9 18.8 21.7

6.6 5.3 9.2 13.0 17.0 20.8 24.6 28.4

5.9 6.3 10.9 15.4 20.0 24.5 29.0 33.5

5.1 7.9 13.6 19.3 25.0 30.7 36.4 42.1

*Standard 5-section units are stocked; part numbers are listed on previous page.

Check product availability

using the Worldwide Inventory

Search at ohmite.com

Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail] 49