Acom 500S - 7.3. Fuse Replacement

User's Manual | ACOM 500S | 160-4 m Linear Power Amplifier
March 2023
S e c t i o n MAINTENANCE | Page 51 of 66
7.3. Fuse Replacement
DANGER
If replacement of fuses is necessary, first pull out the amplifier mains plug from the mains
outlet and wait for at least 3 minutes!
NOTICE
For replacement, only use standard fuses from the types recommended below.
The two Primary Mains Fuses of the amplifier are located on the rear panel (see Figure 2-3 | Rear panel -
Connections, Pos. (f)). They are fuses of the "T" type (time-lag / slow blow), European size 5x20 mm, ceramic
(or glass) body cartridge.
The fuses must be rated for a current corresponding to your mains nominal voltage:
• 6.3 A / 250 V for operation from 200-240 VAC;
• 12 А / 250 V for operation from 100-120 VAC.
Suitable 6.3 A fuse is:
• Littelfuse, PN: 021506.3HXP (ceramic body cartridge);
This fuse can be ordered from:
- DigiKey (www.digikey.com), PN: F2667-ND;
- TME (www.tme.eu), PN: 021506.3HXP;
- Mouser (www.mouser.com), PN: 576-021506.3HXP.
Suitable 12 A fuses are:
• Littelfuse, PN: 0215012.MXP (ceramic body cartridge);
This fuse can be ordered from:
- DigiKey (www.digikey.com), PN: F3250-ND;
- TME (www.tme.eu), PN: 0215012.MXP;
- Mouser (www.mouser.com), PN: 576-0215012.MXP.
If, after Primary Mains Fuses replacement, the device does not operate normally, we
recommend repair, performed only by a trained service technician.
Contact your ACOM dealer for assistance (see Section 1.5 Owner Assistance).
Besides the primary fuses, there are internal fuses inside the amplifier.