PS-1000-28-M1 Busbar Power Supply and Voltage Monitor
1000V Solar Combiner Box Power Supply with Battery Backup to Efficiently Power String Monitoring Solution
Specifications
Input/Output
Description
The ELPRO PS-1000-28-M1 is a fully isolated high voltage DC input power
supply ideal for the solar PV energy industry. The unit’s wide input voltage
range of 250–1000Vdc provides installers with the flexibility to implement
string monitoring solutions without the need for low voltage communications
cabling. Designed in support of Wireless or Fiber-optic communications
solutions in utility scale solar arrays, the PS-1000 offers efficient
performance and enhanced safety.
Designed to output a constant 24Vdc under rapidly changing solar irradiance
conditions, a separate terminal is provided for a back-up battery connection.
This provides seamless UPS style change‑over to battery-only operations
during cloudy or night time operation, thus ensuring maximum system
performance and 24x7 operation.
The unit also provides a linear, galvanically isolated busbar voltage monitor
output that can be interfaced into telemetry or SCADA systems, eliminating
the need for a separate isolated voltage transducer module saving system
cost. A dedicated contact relay output is provided for “Power OK” signaling to
further enhance performance of the overall monitoring solution.
The ELPRO PS-1000-28-M1’s integrated busbar voltage monitor, battery
changeover and power OK output features also save valuable space in
equipment cabinets, reduce cabinet construction and wiring time, and
simplify solar system installations.
Features
• Full 250Vdc to 1000Vdc Busbar Voltage Range
• Provides up to 4A Output Current
• Built-in Isolated Busbar Monitor Circuit
• Built-in Power OK Output
• Built-in Battery Back-up System
• 2500V RMS (1 min) Input and Output Galvanic Isolation
• UL 1741 Compliant
• Compact DIN Rail Mounting
• Input Under/Over Voltage Protection
• Input Reverse Polarity Protection
• Output Voltage Adjustment 22–30Vdc
• Output Over Voltage and Overload Protection
• Output Short Circuit Protection
• Fan-less Convection Cooling
Input
Voltage: 250Vdc – 1000Vdc
Current: <0.6A @ 250Vdc
Galvanic Isolation: 2500V RMS (1 min)
Output
Nominal Voltage: 28.4V, No Load to Max Load 4A (4)
Adjustment Range: 22Vdc – 30Vdc
Output Tolerance: +/-3% (2), Ripple Noise Max 280mV (3)
Efficiency (TYP) 82%, Max Output 113.6W
Galvanic Isolation: 2500V RMS (1 min)
Protection
Output Over Voltage: 36V
Output Over Load at 150% of Rated Load
Output Short Circuit Protection
Shutdown Protection when Input Voltage < 220Vdc
Shutdown Protection when Input Voltage > 1,050Vdc
Input Monitor
Linear Output (1.25V – 5.0V) for
250V – 1000V Busbar Voltage Range
Galvanic Isolation: 2500V RMS (1 min)
Output Monitor
Clean contact relay. Closed for OK (3A 30Vdc, 3A, 250Vac)
EMC
EN 55022 Class B, FCC Part 15 Class B
EN 55024, EN 61000-4-2,3,4,5,6,8
Safety
UL 1741, EN 60950-1:2006, Standard
UL
UL Listed (Pending)
Compliance
General
Mounting
Din Rail, Open Frame Style
Weight
0.75kg (1.6lb)
Dimensions
192 x 123.6 x 50mm (7.6” x 4.9” x 2.0”)
Temperature
-40°C to +70°C (-40°F to 158°F) - Operating
-40°C to +85°C (-40°F to 185°F) - Storage
Humidity
20 – 90% RH Non-condensing - Operating
10 – 95% RH Non-condensing - Storage
Note: Specifications subject to change.
1) All measurements not footnoted are based on 420Vdc input, output max at ambient
25°C (77°F) and 70% RH.
2) Output tolerance includes set up voltage, line regulation, and load regulation.
3) Ripple/noise measured at 250 – 1000Vdc input with 10 – 50°C (50 – 122°F).
4) At temperatures above below -20°C (-4°F) and above 50°C (122°F), max output is
derated to 60% of full load.
©2013 Cooper Bussmann
www.cooperbussmann.com/wireless
03/13
BU-SB121076
Page 1 of 2
Data Sheet #10030
PS-1000-28-M1 Power Supply and Monitor
1000V Solar Combiner Box Power Supply with Battery Backup to Efficiently Power String Monitoring Solution
Ordering
To order, select product code from the table and specify country of application.
Product Code
Description
PS-1000-28-M1
Solar power supply - 1000Vdc to 28Vdc 114W
Voltage monitor output. Power OK output
Product Compatibility
Please refer to product datasheets for compatibility details to suit your
application.
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of
any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
©2013 Cooper Bussmann
www.cooperbussmann.com/wireless
03/13
BU-SB121076
Page 2 of 2
Data Sheet #10030