FUSES. Avtech AV-110G-PS-D

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FUSES

This instrument contains four fuses. All are accessible from the rear-panel. Two protect the AC prime power input, and two protect the internal DC power supplies. The locations of the fuses on the rear panel are shown in the figure below:

Fuses #1 and #2

(AC fuses)

Fuse #4

(DC fuse)

Fuse #3

(DC fuse)

AC FUSE REPLACEMENT

To physically access the AC fuses, the power cord must be detached from the rear panel of the instrument. The fuse drawer may then be extracted using a small flat-head screwdriver, as shown below:

Pry out the fuse drawer using a screwdriver.

Fuse

Drawer

DC FUSE REPLACEMENT

The DC fuses may be replaced by inserting the tip of a flat-head screwdriver into the fuse holder slot, and rotating the slot counter-clockwise. The fuse and its carrier will then pop out.

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FUSE RATINGS

The following table lists the required fuses:

Fuses

#1, #2 (AC)

#3 (DC)

#4 (DC)

Nominal

Mains

Voltage

115 V

230 V

N/A

N/A

Rating

0.8A, 250V,

Time-Delay

0.5A, 250V,

Time-Delay

2.0A, 250V,

Time-Delay

1.6A, 250V,

Time-Delay

Case Size

Recommended Replacement Part

Littelfuse Part Digi-Key Stock

Number Number

5×20 mm 0218.800HXP

F2418-ND

5×20 mm

5×20 mm

5×20 mm

0218.500HXP

0218002.HXP

021801.6HXP

F2416-ND

F2420-ND

F2424-ND

The recommended fuse manufacturer is Littelfuse (http://www.littelfuse.com).

Replacement fuses may be easily obtained from Digi-Key (http://www.digikey.com) and other distributors.