Sensor and Controller Catalog

Accessories

Combined Branch Protection and Semiconductor Fusing

Fuse Selection Guide

Use a DFJ fuse to protect both a branch circuit or power cable and the solid state power controller on the circuit with a single fuse. 1. Select a fuse with an amperage rating at least 125 percent of the connected load (or the next standard size above.) 2. Select a fuse with an I 2 t rating not greater than the I 2 t rating of the solid state power controller. See the specification sheet for the power controller to be protected for I 2 t specification. See DFJ fuse I 2 t below. 3. Use a Watlow recommended fuse. SCCR ratings for Watlow power controllers are only valid with Watlow recommended fuses and only up to 480VAC. For applications above 480VAC or products other than DIN-A-MITE or EZ-ZONE ST contact your Watlow representative.

Bussman ® Equivalent Fuse Part Number

Bussman ® Holder Equiv- alent Part Number

Holder Dimensions (in.)

I 2 T up to 480V (A 2 Sec)

Watlow Single Fuse Holder Part Number 0808-0326-1530

Watlow Part Number

Fuse Amp Rating

A

B

C

D

0808-0325-0020

20

151

DFJ-20

CH30J1I

1.28 4.59 2.80 2.30

0808-0325-0030

0808-0326-1530

30

414

DFJ-30

CH30J1I

1.28 4.59 2.80 2.30

0808-0325-0040

0808-0326-3560

40

1080

DFJ-40

CH60J1I

1.58 4.88 2.80 2.50

0808-0325-0050

0808-0326-3560

50

2268

DFJ-50

CH60J1I

1.58 4.88 2.80 2.50

0808-0325-0060

0808-0326-3560

60

2909

DFJ-60

CH60J1I

1.58 4.88 2.80 2.50

0808-0325-0080

0808-0326-7010

80

3521

DFJ-80

JM60100-1CR 2.1

5.4

3.0

N/A

0808-0325-0100

0808-0326-7010

100

7920

DFJ-100

JM60100-1CR 2.1

5.4

3.0

N/A

Dimensional Drawings

80 to 100 Amp Fuse Holder Panel Mount Only

15 to 30 and 35 to 60 Amp Fuse Holders

91 in. .6 mm)

2.1 in. (53 mm)

C

D

˜ 0.3 in. TYP (8 mm)

B

5.4 in. TYP. (138 mm)

˜ 0.5 in. TYP (13 mm)

A

UNLESS OTHERWISE SPECIFIED: DIMENSIONS AND TOLERANCING ARE IN INCHES AND PER ANSI Y14.5M TOLERANCES:

PRCH

Mounts on 35 mm DIN-rail (DIN EN 50022 35 x 7.5 mm)

THIRD ANGLE PROJECTION

ENG

3.0 in. (77 mm)

.X ± .015 .XX ± .010

.XXX ± .005 ANGLES ± 2 °

TITLE MFG

MATERIAL

ENTER TITLE

ENTER MATERIAL

1.278 in. (32.5 mm)

2.185 in. (55.5 mm)

FINISH

PART NO.

ENTER FINISH Mounting holes: 0.3 in. (8 mm) dia hole with 0.5 in. (13 mm) dia. countersink. CH30J1I

SHT 1 OF 1

1:2

ENTER INITIALS AND DATE

DWN

SCALE

F WINONA, MINNESOTA, CLAIMS PROPRIETARY RIGHTS TO THE MATERIAL HEREIN DISCLOSED. NCE, WITHOUT PREJUDICE TO ANY PATENT RIGHTS OF WATLOW ELECTRIC, AND MAY NOT TO MANUFACTURE ANYTHING SHOWN THEREINWITHOUT WATLOW'S WRITTEN PERMISSION. NOTICE TO PERSONS RECEIVING THIS DRAWING

WATLOWWINONA, INC. 1241 BUNDY BLVD., P.O. BOX 5580 WINONA, MN 55987-5580 507.454.5300 FAX 507.452.4507

TITLE BLOCK: temp_a, Rev B

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