Specifications

Chapter 4 - Installation for MV-8 and MV-19 Controllers
50 Adept MV Controller User’s Guide, Rev C
4.5 Fuse Information
(MV-8 and MV-19)
The two fuses (F3 and F4) at the power entry module on the front panel are for the
incoming AC power lines. There are three fuses (F1, F2, and F5) inside the back section of
the chassis, at the left side (looking from the front) near the top (see Figure 4-3). See the
table below for ratings.
WARNING:
Only skilled or instructed personnel should attempt to
change any fuses. F1, F2, and F5 require access to the interior of the
controller and potentially dangerous AC voltage may be present if the
power cord is not disconnected.
Always replace blown fuses with new fuses of the same type and rating.
The controller is shipped with IEC 127-style 5 x 20 mm fuses and fuse holders (black)
installed at F1, F2, F3, F4, and F5. Included in the accessories kit are five alternative fuse
holder inserts (gray) for 3AG-type (1/4" x 1 1/4") fuses.
NOTE:
The “F” and “T” suffixes indicate the fuse response time. For
example, a 2.5AF fuse rating specifies a 2.5 amp “fast blow” type. A 1.6AT
fuse rating specifies a 1.6 amp fuse, time delay (slow-blow) type.
Fuses F1 and F2 are rated to blow within 60 seconds if the current reaches
200% of the rated value. Fuses F3, F4, and F5 are rated to blow within
5 seconds if the current reaches 200% of the rated value.
Table 4-5. Fuse Ratings
MV-8 Chassis MV-19 Chassis
Operating Voltage
➔
200-240 VAC 100-120 VAC 200-240 VAC 100-120 VAC
Fuse Location
F3, F4 – two AC Line fuses at
Power Entry module
(both the same)
2.5 AF/250 V 5 AF/250 V 6.3 AF/250 V 8 AF/250 V
F1, F2 – internal chassis, left
side as viewed from front
(both the same)
1.6 AT/250 V 2 AT/250 V 1.6 AT/250 V 2 AT/250 V
F5 – internal chassis, right
side as viewed from front
0.5 AF/250 V
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