Switching Power Supply Unit in Case K-40
- Enclosure with space for a battery up to 40 Ah
- Battery deep discharge protection
- Selectable battery charging speed depending on the set charging current
- Battery voltage monitoring every 1 second
- Optical status indication – 4 LEDs
- Missing battery signaling (disconnection) when 230 V / 50 Hz mains is connected
- Lockable enclosure with a tamper contact (cover open detection)
- Tamper contact with wall-removal detection
- Electronic overload protection
- Adjustable charging current value
- High efficiency due to the use of switching-mode power supplies
- Compact design for wall mounting
The 75PS13V8 K40/5A and 1PS13V8 K40/10A backup power supplies are designed to power devices requiring an uninterrupted DC supply of 13.8 Vdc or 12 Vdc.
They are adapted for connection to a backup battery with a capacity ranging from 17 Ah to 40 Ah. The battery is permanently connected to the power supply and is maintained in a fully charged state by the charger circuits, with no risk of overcharging.
The ZOM.01 circuit ensures, among other functions, that the preset charging current is maintained.
The unit is housed in a ventilated metal enclosure equipped with a mechanical lock and two tamper switches. One switch signals the opening of the cover, while the second detects the removal of the unit (metal enclosure) from its mounting location.
Table 1: Technical parameters
| Technical parameters | 75PS13V8 K40/5A | 1PS13V K40/10A |
|---|---|---|
| Input supply voltage | 195 - 255 Vac / 47 - 63 Hz | 195 - 255 Vac / 47 - 63 Hz |
| Output Voltage | 13,8 Vdc < 2 % | 13,8 Vdc < 1 % |
| Output voltage ripple | < 20 mVšš | < 60 mVšš |
| Maximum output current of the power supply | 5 A | 10 A |
| Mains failure signaling relay (230 V / 50 Hz) | NC contact type, 1 A / 12 Vdc | NC contact type, 1 A / 12 Vdc |
| Battery voltage signaling relay < 10,5 V | NC contact type, 1 A / 12 Vdc | NC contact type, 1 A / 12 Vdc |
| Maximum power consumption | 81 W | 163 W |
| Operating temperature | -15 °C to +40 °C | -15 °C to +40 °C |
| Enclosure dimensions | 120 x 102 x 48 mm | 120 x 102 x 48 mm |
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