MCL 48V 150W rackmount DC UPS
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The Mainframe Communications 48V, 150W battery backed DC power supply is designed to provide a reliable and secure 48 Volt nominal, 3 Amp supply in telecoms and datacoms enclosures.
It uses the standby-parallel principle of operation and with its built-in lead accumulator ensures that the DC power supply is reliably maintained in the case of a mains power failure. *The back-up time (depending on the state of charge of the accumulator) is 2 hours at a typical 2 Amp load.
Alarm outputs are provided for the remote monitoring of the AC supply, The DC module health, the battery condition and the status of an external contact.
The internal batteries are maintained at their optimum using a microcontroller-based battery management system which includes bulk and float charging modes and temperature compensation for the charging voltage; this ensures that the battery life is not unduly compromised. The microcontroller also continually monitors the batteries for indications that they have reached the end of their service life and are no longer capable of effectively supplying the load—this is indicated by a flashing battery fault lamp on the front panel, and the closing of the battery alarm contacts. This system ensures confidence in the unit’s ability to take over in the event of a power failure while avoiding the cost of routine premature battery replacement.
Features:
- 48V, 3A DC Output
- 115-230 VAC Input
- 2 Hour Backup Time*
- 19” Mounting
- 2U High
- Temperature-Compensated Charging
- Alarm Outputs
- Battery Condition Monitoring
Specifications:
Input parameters |
|
Mains voltage |
85…264Vac |
Frequency |
47…63Hz |
Current surge when connecting to 230V mains |
max. 40A |
Power coefficient |
>0.93 |
Efficiency |
85% |
Leakage current |
max 2mA |
Output parameters |
|
Number of outputs |
4 |
Output fuses – accessible |
2AF (5x20mm) |
Output voltage *1) |
42V…55.7V |
Nominal, total output current *2) |
3A |
Current limitation *2) |
min 3.2A |
Internal battery supervision |
|
Battery – VRLA |
48V/7.0Ah |
Floating mode voltage at temperature of 25°C |
54.2V |
Bulk charging voltage at temperature of 25°C |
55.7V |
Temperature dependency *3) |
-96mV/°C |
Battery charging current – max. |
0.65A |
Battery charging time of up to 80% of its capacity |
10h |
Discharged battery disconnection |
42V |
Battery fuse – accessible |
4AF (5x20mm) |
Max. battery circuit resistance (indication) |
>600 mΩ |
External battery |
|
Nominal battery voltage |
48V |
Battery fuse |
4AF (5x20mm) |
Indications |
|
Relay indication – NC terminals accessible on indication connector - power failure - battery fuse blown, no battery or battery resistance too high - rectifier faulty - external alarm indication (door open) |
15V/1A, 30V/1A, 60V/0.5A at resistive load |
External alarm input (ext.) – short circuiting with potential-free terminals required |
load as above. |
LED indication on the front panel - mains on (AC good) - rectifier OK (DC good) - battery fault (BATTERY internal FLT): - no battery or battery fuse blown - battery resistance too high (battery needs to be exchanged)
|
on (G) on (G)
on (Y) blinking (Y) |
Dimmensions:
Dimensions – 19” - height - length (unit only, without connectors) |
88mm (2U) 300mm |
Weight (including battery) |
< 14kg |
Ingress protection |
IP20 |
Indication connectors (sockets) |
D-SUB-15 |
Output connectors |
Molex Mini-Fit Sr 4pin/10mm |
External battery connector |
Molex Mini-Fit Sr 2pin/10mm |
External alarm connector |
Phoenix FFKDSA/H1-7.62 |
Output and battery fuses |
5x20mm |
Mains power |
IEC C14 |
Standards |
EN 61000-3-2 Class A, CE Marked |
Rating | 150W |
---|---|
Mounting | Rack |
Enable Hide Price | No |