SR250HL – 250W

AC/DC Power Supply/Battery Charger

The SR250HL range is designed for use as a reliable and stable AC to DC power supply, or float charger for lead-acid batteries. Note that for float charging the output voltage must be set to approximately 15% above the nominal battery voltage models. This is done as the default voltage for the 12V model but must be specified at the time of order for all higher voltage models.

APPLICATIONS

  • Security – Access Control
  • Industrial Processes Switching Protection
  • SCADA
  • Radio Repeaters – Remote Sites

POINTS OF DIFFERENCE

  • Ideal for standby float charging of lead-acid batteries
  • Constant current limit and Precise voltage control
  • Temperature compensation option
  • Efficient modern “current mode”
  • Relay Alarms Output
  • Suitable for parallel operation
  • Rugged design and construction for long life and   challenging environments

OPTIONAL FEATURES

  • American Input Voltage 110 VAC ( 88 – 135 VAC)
  • 110VDC (88V – 135VDC)  Input Voltage – can be used as a DC-DC Converter
  • Fanless Option rated at 210W up to 50°C – CSR200 
  • Communication Port ( RS232 ASCII – SR485 – MODBUS RTU  – SNMP, webpages)
  • Digital Input/Outputs: Customizable 2 digital inputs & 1 digital output.
  • Mounting: 19″ Rack Mount  with V/I meter available & Wall mount
  • N+1 redundancy
  • Boost Charger
  • Conformal Coating for harsh environments

SERIES TABLE

MODELSPower SupplyBattery Charger*Adjustable range (V)
Output
Volts
(factory
default)
Output
Current (A)
(continuous)
Output
Volts*
(Charging) 
Output
Current (A)
(Charging)
SR250HL7.57.5206.920(140 W )6.8-8
SR250HL1213.818.113.818.111-14
SR250HL242410.427.6922-28
SR250HL30303.334.57.227-33
SR250HL36362.841.4634-43
SR250HL48482.155.24.545-57
SR250HL60604.1693.654-69

*Please specify on ordering if unit is to be used for battery charging duty (except for 12V version which is set for 13.8V as standard)

SPECIFICATIONS TABLE

Output power250 W (0-50°C )
Input Voltage180V – 264VAC 45-65Hz
Output Voltages7.5V, 13.8V, 24, 30V, 36V, 48 V
Other voltages by request
Voltage Adj. Range85% – 105% of Vout
Overcurrent protectionConstant current limit under overload and short circuit conditions
IsolationInput – earth – 2.5KVdc
Output – earth – 500Vdc
Efficiency> 85%
Inrush Current< 30A , 1.8ms
Operating temperature-20  to 50 °C ambient at full load
Humidity0 – 95% relative humidity non – condensing
CoolingNatural convection except for 12 V
LED IndicationGreen: DC OK
Green: Power OK
Red: Standby
Alarms RelayForm C contacts changeover, rated 30VDC,2A/110VDC,0.3A/125VAC,0.5A
DC High
POWER  (mains fail, PSU fail)
DC Low
Line Regulation<0.04% over input range
Load Regulation<0.5% open circuit to 100% load
Noise<0.3%
Transient response200mV over/undershoot,
Load step 20-100%, 400us settling time
Hold-up time15-20 ms (nom-max. Vin) without battery

OPTIONAL FEATURES

Optional Input Voltage88 – 132 VAC
Communication Port RS232 (ASCII)
RS485 (ASCII)
Modbus RTU
SNMP, Webpages
Inputs/OutputsCustomizable 2 Digital Inputs and 1 Digital Output
Temp. CompensationTemperature sensor on 1.7m lead with adhesive pad: -4mV / °C / cell ±10%
Mounting DIN Rail
Standalone
19”Rack Mount – Optional V/I meter for subrack : SR-Meter
N+1 RedundancyUsing 2 chargers each with its own battery
Boost ChargerCustomizable feature on request

MODELS REPLACED BY SR250HL

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