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4.2.
SWITCH MODE POWER SUPPLY (SMPS)
The SMPS, which is the main power source, is connected to the mains. The total current consumption, including maximum battery
charging current, must not at any time exceed 4.5 A. Allowed input voltage is 195 - 253 V AC.
The output voltage is factory set to 24 V with a tolerance of ±1%. On the SMPS is a potentiometer for output
voltage adjustment (±10%) available. Do not use this potentiometer unless the output voltage is not 24 V.
Voltage
Input
Current
Voltage
Output
Current
4.3.
CHARGER BOARD
The charger board has in the standard configuration two 2 A outputs (24V DC).
The total continuous current takeout can be maximum 3.0 A or 1.5 A depending on the battery charging current mode.
4.3.1.
FUSES
There are four fuses on the charger board:
F1 = T5AH 250 V, 5x20mm +24V DC rectifier input.
F2 = T5AH 250 V, 5x20mm + battery input.
F3 = T2AH 250 V, 5x20mm +24V DC output 0 or connector J5.
F4 = T2AH 250 V, 5x20mm +24V DC output 1 or connector J6.
4.4.
BACKUP BATTERY
Make sure to install the batteries according to national regulations. Consider ventilation and codes of practice.
BATTERIES INSIDE THE 4466
By loss of the main power source (230 V AC), the second power source consists of two sealed Lead-Acid batteries 12 V / 7.2 Ah
(Size 153x65x95 mm with 4.8 FASTON spade terminal).
The internal batteries must be approved according to IEC 61056-1, and must have flammability rating UL94-V1 or better.
BATTERIES OUTSIDE THE 4466
Batteries with higher capacity than 7 Ah up to 42 Ah have to be placed outside the housing, in a separate cabinet (type 5014).
For external batteries, a maximum cable length of 3 meter (minimum 4 mm2) is allowed.
CAUTION!
Risk of explosion if batteries are replaced by incorrect type.
195-253V AC
≤ 2.0 A
24V DC (nominal)
0 – 4.5 A
8
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