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SMR40H-48V/40A Rectifier Specification The SMR40H-48V/37A is a switched mode rectifier (SMR) module designed to provide up to 40A of output current into a 48V nominal system. This rectifier has been designed to be used in conjunction with a battery to provide an uninterruptible DC power system. The low noise and high reliability make it ideally suited to telecommunications applications. From 1 to 225 rectifiers can be configured as a system using one control and supervisory unit (MiniCSU).

The system can be monitored and controlled remotely using WINCSU software and modern communications. Illustrated is the SMR40H rectifier module with 1U height.

Operating characteristics of the SMR40H-48V/40A are specified at 25˚C, 230VAC, 50Hz unless otherwise stated: Input AC Voltage: Single phase: Active, Neutral, and Earth Rated Vac: 230Vac± 20% (184-275Vac); 1Extended low voltage range: 90-184VAC (with power limit increasing from 50% to 100%) 1Extended high voltage tolerance: 275-290VAC; Must start voltage: 90VAC;

Current: 12.5A RMS max line current at 184VAC; 9.5A RMS line current at 230VAC; Frequency: 50 / 60Hz ± 10%;

Power Factor: >0.98 at 40÷100% load;

Harmonic Distortion: Current THD< 5% typically at full load when operated with mains voltage THD <1%; Note 1: The unit can operate from 90VAC to 290VAC, but has the RATED voltage range and tolerance as specified. Specifications apply to 230VAC.

Efficiency: Typically 94.5% Inrush Current: Max. 8A peak at nominal mains voltage; Soft Start: Ramp-up time 8 seconds to full load; Protection: HRC input fuse; Overvoltage shutdown at approx. 300VAC; Undervoltage shutdown at approx. 85VAC; Input soft start – can be connected to live AC bus; Voltage Withstand Test: 1500VAC input to chassis for 1 minute; (2200VDC 100% testing on production units for 2 seconds);

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Output DC Voltage: Float: 42-58.0V Equalise: 50-59.5V Current Limit: Range: 5-40A Power Limit: Current limit is automatically reduced in inverse proportion to output voltage above 48VDC to limit output power to 2000W; Available current: 40A* at 48V and below 35.7A at 56V 33.6A at 59.5V

0 10 20 30 40 50 60 70

0 15 20 25 30 35 40 ( A )

(V)

*40A current limit automatically reduces by 0.75A/˚C for ambient temperature above 50˚C. Static Regulation: Line: better than ± 0.02% Load: terminal voltage drops by 0.45V±0.03V from zero to full load (for passive current sharing) for stand-alone units, or regulates to better than ±0.05% for MiniCSU controlled units;

Dynamic Regulation: ±5% for 10% to 90% to 10% step load change; ±1% of final value within 1ms of step change; ±0.1% for a 25% step change in AC input voltage; Noise: <2mV RMS Psophometrically weighted; <40mV RMS (10kHz-100MHz); <100mV peak to peak (10kHz-100MHz); Load Sharing: Better than ±5% of full scale with active current sharing from MiniCSU; Protection: Hotplug – no surge when connection is made to a live DC bus; Overvoltage – only faulty units shuts down; Overcurrent – can sustain short circuit at output terminals indefinitely. Output current folds back step-wise as output voltage drops as shown in characteristic curve; Overtemperature – gradual reduction of current and power limit if internal temperature exceeds pre-set limit. Voltage Withstand Test: 1000VAC output to chassis for 1 minute; (1500VDC 100% testing on production units for 2 seconds);

Remote Controls (from MiniCSU) Programmable parameters – Battery menu:

• Float Voltage

• Equalise Voltage

Programmable parameters – SMR menu: • Current Limit • High Voltage Alarm level • Low Voltage Alarm level • High Voltage Shut-Down level

(HVSD)

• HVSD Reset

Equalise mode: The SMR will automatically enter and exit equalise mode at user specified conditions, or can be manually initiated. Under any fault condition the SMR will default to float value. External Digital Voltage Control (EDVC): The SMR Float and Equalise voltages are digitally controlled over a limited range to achieve active current sharing between parallel connected SMRs, for temperature compensation, voltage drop in the DC bus, and to limit the maximum battery recharging current.

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Environmental Cooling: Forced convection cooling using two 40mm fans mounted internally with variable speed control. Temperature:

Operating range: -25°C to +70°C Full power range at 40A: -25°C to +50°C Derated operation: approx.12A at +70°C (approx. –0.75A/°C for temperatures over 50°C) Storage and Transportation:-40°C to +70°C The rectifier senses its internal temperature and, if necessary, adjusts power limit and current limit to protect itself against overheating; Humidity:

0 to 90% non-condensing; Altitude:

Operational to 3000m.(Consult factory above 3km) Derate maximum ambient temperature by 4°C per 1000m above sea level.

Vibration:

Operational: 2-9Hz, 1.5mm displacement, all major axes. 9-200Hz, 0.5g, all major

axes Transport: 5-20Hz, 0.01g/Hz2 acceleration,

20-200Hz –3dB/oct all major axes.

Shock:

Packaged: 18g 6ms half sine, all major axes

Drop test:

Packaged: 1m drop all faces

Acoustic Noise (A Weighted):

< 45dB (80% load, 25°C ambient) < 50dB (100% load, 25°C ambient) < 55dB (100% load, 50°C ambient)

Mechanical Dimension (WxDxH): 220 x 268 x 42 mm Weight: max. 3kg

Outline

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Compliances Safety: IEC60950:1999; EN60950

EMC Generic Emissions: EN50081-2

EMC Generic Immunity: EN50082-1

EMC Test Levels Emissions:

Category: Tested to comply with:

Harmonics EN61000-3-2 Class A

Conducted RF AC Terminals: EN55022 Class B

Radiated RF EN55022 Class B

Immunity

Category: Tested to comply with:

Electrostatic Discharge (ESD)

IEC 61000-4-2; EN61000-4-2 (Level 4: Air 15kV, Contact 8kV)

Criterion A

Radiated RF IEC 61000-4-3; EN61000-4-3 (Level 4: 10V/m, 1kHz 80% AM)

ENV50204 - GSM Radiation (Mobile Phone) (Level 4: 10V/m, 100% AM, 50% duty)

Criterion A

Criterion A

Electrical Fast Transient (EFT)

IEC 61000-4-4; EN61000-4-4 (Level 4: 4kV on AC lines) (Level 3: 1kV on load lines)

Criterion A Criterion A

Surge Protection

IEC 61000-4-5; EN61000-4-5 (Impulse) (Level 3: ±2kV Common Mode [CM] on AC lines) (Level 2: ±1kV Differential Mode [DM] on AC lines)

Criterion A Criterion A

Conducted RF IEC 61000-4-6; EN61000-4-6 (Level 3: 10V on AC and load lines)

Criterion A

Voltage Dip, Interruptions

IEC 61000-4-11; EN61000-4-11 (Level: 30% dip for 10ms) (Level: 60% dip for 100ms) (Level: 100% dropout for 5s)

Criterion A Criterion B Criterion B