Checking the ground fault surveillance function:
When the NRS 90224 is installed and the power amplifier is switched on, the green READY indicator (7) has to light. Utilizing an external switch to connect one pole of the
9.19"-case and 19“-rack-shelf system installation
Note | Operation of the power amplifiers DPA 4120 and DPA 4140 with enclosure cover plates detached is |
| strictly prohibited. |
|
|
When mounting the power amplifiers within
mm.A free space of at least 100 mm above the
Note | To ensure |
| +40°C is not to be exceeded. |
|
|
10.Ground lift switch CIRCUIT ⊥ TO CHASSIS SWITCH
The ground lift switch CIRCUIT ⊥ TO CHASSIS SWITCH (19) provides the possibility to separate the signal ground from the enclosure (ground potential). This is mainly meant to eliminate
11.Fuses
11.1 Fuses in the DPA 4120
location | Pos. | purpose | value | dimensions | standard |
fuse socket (11) | F601 | mains fuse 230V~ AC | T2A | 5x20 mm | IEC |
fuse socket (11) | F601 | mains fuse 115V~ AC | T4A | 5x20 mm | IEC |
printed board assembly | F602 | mains fuse 100V - 250V | T1A | Ø 8.5xRM 5.08mm | IEC |
86243 |
|
|
|
|
|
printed board assembly | F502 | battery fuse 24V DC | 15A | flat fuse | DIN |
85270 |
|
|
|
|
|
printed board assembly | F503 | battery fuse 24V DC | 15A | flat fuse | DIN |
85270 |
|
|
|
|
|
11.2 Fuses in the DPA 4140 |
|
|
|
| |
location | Pos. | purpose | value | dimensions | standard |
fuse socket (11) | F601 | mains fuse 230V~ AC | T4A | 5x20 mm | IEC |
fuse socket (11) | F601 | mains fuse 115V~ AC | T8A | 5x20 mm | IEC |
printed board assembly | F602 | mains fuse 100V - 250V | T1A | Ø 8.5xRM 5.08mm | IEC |
86243 |
|
|
|
|
|
printed board assembly | F502 | battery fuse 24V DC | 25A | flat fuse | DIN |
85268 |
|
|
|
|
|
printed board assembly | F503 | battery fuse 24V DC | 25A | flat fuse | DIN |
85268 |
|
|
|
|
|
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