UNIPOWER Guardian Access 19″ - MS31 DC Power Systems
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UNIPOWER Guardian Access 19 are 5RU or 6RU high 19” rack-mounted, integrated DC power systems providing an output of -48VDC. These systems can accommodate up to four (5U) or eight (6U) Guardian family high efficiency hot-swap rectifiers.
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UNIPOWER Guardian Access 19 are 5RU or 6RU high 19” rack-mounted, integrated DC power systems providing an output of -48VDC. These systems can accommodate up to four (5U) or eight (6U) Guardian family high efficiency hot-swap rectifiers. The Guardian Access 19″ - MS31 product offering has a three year warranty. Alpine Power Systems is an approved vendor of UNIPOWER products.
A load current of 400A is available with battery charge current up to 125A subject to an overall 480A. The rectifiers are internally fan cooled with speed control which is a function of load and temperature, keeping acoustic noise to a minimum.
The DC output circuits can provide up to 20 loads which utilize circuit breakers with capacities from 2A to 150A plus up to six 100A or 300A breakers that provide battery protection. A programmable low voltage battery disconnect (LVBD) is available with a 200A (5RU systems) or 400A (6RU systems) contactor; while one optional partial load disconnects (PLD), rated at 125A (5RU systems) or 200A (6RU systems) and also programmable, can provide non-critical load shedding when operating on batteries.
Guardian Access 19″ - MS31 Features & Options:
>96% Efficiency Rectifiers
480A / 23.2kW Load Capacity
Remote Monitoring & Control
Intelligent Battery Management
Field Replaceable Controller
Ethernet Comm. with SNMPv3
3 LED Alarm/Status Indicators
Up to 10 Form-C Relay Alarms
Up to 20 Load Breakers
Up to 6 Battery Breakers
LCD Display/Touchpad
Easy Installation
Guardian Access 19″ - MS31 Output:
System Voltage: -48VDC nominal | -53.5 float (factory default setting, user adjustable)
Maximum Capacity @ 120VAC nominal:
Load - 245A
Battery - 245A discharge | 125A charge (s/w controlled)
Maximum Capacity @ 230/400VAC nominal
Load - 400A
Battery - 400A discharge | 125A charge (s/w controlled)
No. Rectifier Slots: 4 (5RU) or 8 (6RU)
Guardian Access 19″ - MS31 DC Distribution:
Load Circuits: Up to 20 (4A to 150A)
Battery Circuits: 1-6 x (100A to 300A)
Guardian Access 19″ - MS31 Input:
Voltage (nominal):
1-phase 100-120/200-240VAC (L + N + PE)
3-phase 230/400VAC (L1 L2 L3 + N + PE)
Frequency: 47-63Hz
Maximum Input Current: 160A @ 100-120VAC | 135A @ 200-240VAC | 45A per phase @ 400/230VAC
Rectifier Power Factor: >0.98 (typical)
Surge Protection: Optional
Guardian Access 19″ - MS31 Monitoring & Control (ACX Advanced Controller):
Alarm Relays: 4 standard, option for 10
Local Interface: 4 x 20 LCD, 4-key menu, USB / RS232, microSD card slot (4GB max,) for data logging
Remote Interface:
Ethernet / Modem using PowCom software package
Ethernet port allows monitoring and control over a TCP/IP network.
Web browser support + SNMPv3
LED Indications:
Green - System ON
Yellow - Message(s)
Red LED - Alarm(s)
External Digital I/O: 2 x Inputs, 2 x Outputs (TTL Level)
Guardian Access 19″ - MS31 Battery Management:
Symmetry Inputs: 6 or 12 (can be redefined as analog inputs up to 100VDC)
Low Voltage Battery Disconnect (LVD): 1 x 200A (5RU systems) or 400A Programmable (6RU systems)
Partial Load Disconnect (PLD): 1 x 125A (5RU systems) or 200A (6RU systems) Programmable
Temperature Compensated Charging: Programmable
Guardian Access 19″ - MS31 Compliance:
EMC: EN 300 386 ; EN61000-6-3 (Emission) ; EN61000-6-2 (Immunity)
Safety: IEC60950-1:2005 2 Ed. +A1:2009
Guardian Access 19″ - MS31 Environmental:
Operating Temperature: -40ºC to +55ºC
Storage Temperature: -40ºC to +85ºC
Guardian Access 19″ - MS31 Dimensions, Ins. (Mm):
Rear Cover Removed: 18.9 (481) W x 5RU or 6RU x 15.6 (396) D
Rear Cover Fitted: 18.9 (481) W x 5RU or 6RU x 16.9 (430) D
Stock Models:
MS0031G*900081:
5RU 4 Rectifier Position Chassis with standard input
ACX Controller
10 alarm relays
100A Battery Breaker (x4)
Load Breakers: 63A (x3) / 50A (x3) / 32A (x3) / 25A (x2) / 20A (x2) / 16A (x2) / 10A (x2)
3m Temp. Sensor Cable (x1)
3m End Measurement Symmetry Cable (x4)
[Rectifiers & Dummy Modules must be ordered separately.]
MS0031G*900082:
6RU 8 Rectifier Position Chassis with standard input
ACX Controller
10 alarm relays
100A Battery Breaker (x4)
Load Breakers: 63A (x3) / 50A (x3) / 32A (x3) / 25A (x2) / 20A (x2) / 16A (x2) / 10A (x2)
3m Temp. Sensor Cable (x1)
3m End Measurement Symmetry Cable (x4)
[Rectifiers & Dummy Modules must be ordered separately.]
Guardian Access 19″ - MS31 Intelligent Battery Management:
Battery Disconnection - Provides voltage controlled disconnection of batteries.
Boost Charging - Manual time controlled or automatic boost charging with adjustable time and voltage levels.
Battery Tests - Automatic or manual testing of batteries up to six times per year with a 10 test memory. Variables include test duration and end voltage. Battery discontinuance test to ensure battery connection.
Enhanced Battery Monitoring - Monthly logging of essential battery parameters including temperature, temperature hours, current, charging voltage and symmetry voltage, Data logged for 5 years.
Site Logs - System tools developed to assist site management. Daily peak load and statistic logs available.
Symmetry Measurement - Optional tool that measures batteries for early detection of thermal runaway.
Temperature Compensation Charging - Allows continuous adjustment of output voltage according to battery temperature. Features include adjustable compensation factor and separate thresholds for high temperature alarms.
Load Shedding (PLD) - Optional feature that allows voltage or time-controlled disconnection of non-essential load.
Alpine Power Systems is a value-added reseller of UNIPOWER products. Alpine can provide DC Power System services on all UNIPOWER products including engineering, installation, preventative maintenance, monitoring and recycling. Alpine is ISO 9001 Quality, 14001 Environmental, & 45001 Health & Safety Certified. Call our inside sales group at 877-993-8855 for assistance.
Applications
- Switchgear
- Data Center
- Industrial
- Central Office
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