SR500HL – 500W

Standalone AC-DC Power Supply / Float Battery Charger for Lead-Acid Batteries

The SR500HL 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 time of order for all higher voltage models.

Temperature compensation option is required when PSU is used for charging batteries. The temperature compensation feature ensures batteries are charged to full capacity in cold environments and protected from over-charging in hot environments.

Our range of 500W-750W models have relay alarms for monitoring output voltage, mains and PSU failure parameters.  The new SR500HL model has improved its thermal reliability with two fans relocated to dissipate heat more effectively and increase life span of critical components such as capacitors, shunts, and transformers.

The standard input voltage of the unit is 180-264VAC but it can be easily customised to 88-132VAC for the American market. It can also be used as DC-DC converter, for more information about this application please contact our team of engineers at sales@heliosps.co.nz

Options

SR500HL SR750HL Options
  • American Input Voltage 110VAC ( 88 – 135 VAC)
  • 110VDC (88V – 135VDC)  Input Voltage – can be used as a DC-DC Converter 
  • Communication Port
    •  RS232 (ASCII)
    • SR485  (ASCII)
    • MODBUS RTU
    • SNMP, webpages
  • Digital Input/Outputs: Customizable 2 digital inputs & 1 digital output
  • Internal meter
  • 19″ Rack Mount  with V/I meter available, Wall mount
  • N+1 redundancy
  • Conformal Coating for harsh environments
  • DC Connectors:
    • M8 brass stud
    • Plug-in style phoenix socket & mating screw terminal
    • Anderson plug-in style connectors
DC Power Supply Manufactures - DC UPS

Main Features

  • Ideal for standby float charging of lead-acid batteries or standalone PSU
  • Constant current limit and precise voltage control
  • Temperature compensation option ( Required when charging batteries)
  • Efficient modern “current mode”
  • Relay Alarms Output ( High voltage, low voltage, mains or PSU fail)
  • Suitable for parallel operation – N+1 Redundancy
  • Rugged design and construction for long life and challenging environments
  • Output Voltage from 12V to 48VDC. For 110VDC output voltage models check out the SR500L

Applications

  • Security – Access Control
  • Industrial Processes
  • Switching Protection & SCADA
  • Radio Repeaters – Remote Sites
  • Vehicle mounted backup system

Accessories Supplied

  • Mounting feet together with screws
  • AC power cord 1.5m with IEC320 socket and NZ/Aust plug
  • Mating screw-terminal plug for alarm outputs
  • Crimp lugs for stud terminal versions
  • DC screw terminal plug-in connector for ‘X’ version
  • DC screw terminal plug-in anderson connector for “A”version

SERIES TABLE

ModelsDC Power SupplyBattery Charger*Adjustable range (V)
Output  Volts (factory
default)
Output  Current (A)
(continuous)
Output  Volts*
(Charging) 
Output  Current (A)
(Charging)
SR500HL1213.8V36.2 (41.6 @12V)13.8V36.2A11-14V
SR500HL2424V20.8A27.6V18.2A22-29V
SR500HL3030V16.6A34.5V14.5A28-36V
SR500HL3636V13.8A41.4V12A34-43V
SR500HL4848V10.4A55.2V9.1A45-57V

*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 power500W (0-50°C )
Input Voltage180V – 264VAC 45-65Hz
88V – 132VAC   45-65Hz ( Optional)
Output Voltages13.8V, 24, 30V, 36V, 48 V Other voltages by request
Voltage Adj. Range85% – 120% of Vnominal
Fusing/ protectionInput fuse and Varistor
Overcurrent protectionConstant current limit under overload and short circuit conditions
IsolationInput – earth – 2.5KVdc
Output – earth – 500Vdc
Efficiency> 85%
Inrush CurrentSoft start circuit
Operating temperature-20  to 50 °C ambient at full load
Humidity0 – 95% relative humidity non – condensing
OVPOver-voltage protection on putput at 130% of nominal output voltage
CoolingDual Fan Cooled
LED IndicationGreen: DC OK
Green: Power OK
Flash code for different operating states
Alarms RelayForm C contacts changeover, rated 30VDC,2A/110VDC,0.3A/125VAC,0.5A
30VDC, 2A/110VDC, 0.3A, 125VAC, 0.5A
DC High ( Fan fail/stall (toggle every 5 sec))
POWER  (mains fail, PSU fail)
DC Low
Line Regulation<0.2% over AC input range
Load Regulation<0.4% open circuit to 100% load
Noise<1%

OPTIONAL FEATURES

Optional Input Voltage88 – 132 VAC
Optional DC Input Voltage110VDC (88V – 135VDC)
Please note that an external fuse or MCB
must be fitted on the output for short circuit protection.
Communication PortRS232 (ASCII)
RS485 (ASCII)
Modbus RTU
SNMP, Webpages
Digital Inputs/OutputsDigital Input (pins 1,2) / Input or Output (pin 3) / Return (pin 4)
Temp. CompensationTemperature sensor on 1.7m lead with adhesive pad: -4mV / °C / cell ±10%
Internal MeterInternal V/I meter displaying PSU operating states and analogue
MountingStandalone
19”Rack Mount – Optional V/I meter for subrack : SR-Meter
N+1 RedundancyUsing 2 chargers each with its own battery & output diodes
Conformal CoatingFor harsh environments

MODELS REPLACED BY SR500HL

Item CodeDescriptionNew Model
SR500D24FSLPSU SR Std + alarms 24V 500WSR500HL24TFSL
SR500D24FXLPSU SR Std + alarms 24V 500WSR500HL24TFXL
SR500D24TFSLPSU SR Std + tempco + alarms 27.6V 500WSR500HL24TFSL
SR500D24TFXLPSU SR Std + tempco + alarms 27.6V 500WSR500HL24TFXL
SR500D30FSLPSU STD + alarms 30V 500WSR500HL30TFSL
SR500D30TFSLPSU STD + alarms 30V 500WSR500HL30TFSL
SR500L12FSHDC/DC Converter 12V 500W Alarms, 110VDCin/12VDCSR500HL12FSLDC
SR500L12FSH485DC/DC Coverter 12V 500W Alarms, 485 COMMS 110VDCin/12VDCSR500HL12FSL485DC
SR500L12FSLPSU/charger 13.8V 500W w/alarms mains fail,SR500HL24TFSL
SR500L12FSL-485PSU 12V 500W ALARMS, 485 COMMSSR500HL24TFSL-485
SR500L12TFSL-LAN+PSU 500W 12V Alarms + tempco + LAN+SR500HL12TFSL-LAN+
SR500L24FSLPSU 24V 500W with alarmsSR500HL24FSL
SR500L24FXHDC/DC Converter 110V/24Vdc 500W w/alarmsSR500HL24FXLDC
SR500L24FXH485DC/DC Converter 110V/24Vdc 500W w/alarmsSR500HL24FXL485DC
SR500L24FXLPSU 24V 500W with alarms, Phoenix conns.SR500HL24FXL
SR500L24TFSLCHARGER 27.6V 500W  3 x Alarms + tempcoSR500HL24TFSL
SR500L24TFSL-LAN+CHARGER 24V 500W w/alarms tempco  SNMPSR500HL24TFSL-LAN+
SR500L24TFSL/1CHARGER 24V 500W 3 x ALARMS* 4M TEMCPO**SR500HL24TFSL
SR500L24TFSL/2CHARGER 24V 500W ALARMS+OVER VOLTS*THIS VERSION WITH 10M TEMCPO**SR500HL24FSL
SR500L24TFSUCHARGER 24V 500W  3 x Alarms + tempco 110VACinIt will be given a custom model number using the SR500HL
SR500L24TFXL-LAN+CHARGER 24V 500W w/alarms tempco  SNMPSR500HL24TFXL-LAN+
SR500L24TFXL232CHARGER 24V 500W ALARM, 232 COMMSSR500HL24TFXL-232
SR500L24TFXL485CHARGER 24V 500W ALARMS  TEMPCO  485 COMMSSR500HL24TFXL-485
SR500L30FSLPSU 30V 500W ALARMSSR500HL30FSL
SR500L30TFSLCHARGER 30V 500W ALARMS+ TEMPCOSR500HL30TFSL
SR500L36FSLPSU 36V 500W ALARMSSR500HL36FSL
SR500L36TFSLCHARGER 36V 500W ALARMSSR500HL36TFSL
SR500L48FSLPSU 48V 500W ALARMSSR500HL48FSL
SR500L48FXHDC/DC Converter 110V/48Vdc 500W w/alarmsSR500L48FXLDC
SR500L48FXLPSU 48V 500W with alarms, Phoenix conns.SR500HL48TFXL
SR500L48TFXLCHARGER 48V 500W with alarms and TempcoSR500HL48TFXL
SR500L24TFXLCHARGER 24V 500W  3 x Alarms + tempcoSR500HL24TFXL

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