MEAN WELL RPB-1600-48 is an RPB-1600 intelligent AC/DC battery charger for the 48 V nominal battery class. It provides a default 27.5 A charging current with 57.6 V boost and 55.2 V float settings, PMBus communication, programmable charging curves and a 41 mm 1U body.
Product Datasheet
Download MEAN WELL RPB-1600 Datasheet (PDF)
The RPB-1600 section is on PDF pages 1, 2, 3, 4, 5, 6, 7, 8. Refer to the complete mechanical drawings and notes when planning installation.
Model-Specific Charging Output
Nominal battery-voltage class
48 V
Default boost charge voltage
57.6 V
Default float charge voltage
55.2 V
Default charging current
27.5 A
SVR voltage adjustment
47.5–58.8 V
Suggested battery capacity
90–270 Ah
Efficiency, typical
93.5%
Reverse leakage from battery, typical
<45 mA
The 48 V model designation is the nominal battery-voltage class; the default charging voltages are the boost and float values above. The suggested Ah range is a selection guide: confirm the battery manufacturer's permitted current and charging profile. Apply both the input-voltage and temperature derating limits.
For lead-acid batteries or batteries without a BMS, use a breaker to disconnect charger and battery after full charge.
Input and Configuration
AC input
90–264 VAC
DC input
250–370 VDC
Input frequency
47–63 Hz
Power factor, typical
0.97 at 230 VAC and full load
AC current, typical
15 A at 115 VAC; 8.5 A at 230 VAC
Cold-start inrush, typical
35 A at 230 VAC
Input leakage current
<2 mA at 240 VAC
Communication fitted
PMBus
The blank communication suffix selects the standard PMBus configuration through the built-in I²C interface. PMBus Rev. 1.1 supports information reading, status monitoring and output trimming at up to 100 kHz.
Active PFC and active inrush limiting are built in. The input withstands 300 VAC for 5 seconds; this is a temporary surge rating, not a continuous operating voltage. The block diagram identifies 90 kHz PFC and 70 kHz PWM switching.
Unqualified electrical specifications are measured at 230 VAC, rated load and 25°C ambient.
Charging Curves and Battery Compatibility
Default, programmable boost / float
57.6 V / 55.2 V
Gel boost / float
56 V / 54.4 V
Flooded boost / float
56.8 V / 53.6 V
AGM boost / float
58 V / 54 V
Default three-stage charging applies 27.5 A constant current, then holds the boost voltage during the constant-voltage stage. The curve changes to float when charging current falls to 10% of CC. The LED is orange during constant-current/constant-voltage charging and green in float.
The embedded profiles cover gel, flooded and AGM lead-acid batteries. A correctly programmed curve can also serve the listed lithium battery types, including lithium iron and lithium manganese; confirm all settings with the battery supplier.
For the default charging curve, short CN1 pins 10 (D0) and 14 (-V signal). Curve enable/disable, two-stage operation, stage timeout settings and alternative charging/control modes must follow the applicable user manual. Programming charging-curve parameters requires the separately selected MEAN WELL SBP-001 smart battery charging programmer and a personal computer.
Voltage and Current Programming
Voltage programming range
75–125% of nominal output voltage
Current programming range
20–100% of rated current
PV control / return
CN1 pin 12 / pin 14 (-V signal)
PC control / return
CN1 pin 11 / pin 14 (-V signal)
PV and PC operate when PMBus/CANBus control is not operating. The built-in SVR operates only when neither communication control nor PV/PC control is operating.
Use the plotted control characteristics rather than a linear percentage conversion. Below 0.4 V control, the PV graph shows nominal voltage and the PC graph shows rated current. At the low-control transition the curves step to 75% voltage or 20% current, remain at those levels through 1 V, then rise nonlinearly to 125% voltage or 100% current at about 4.7 V, with the shown plateau extending to 5 V.
PV, PC and the address/selection functions use the non-isolated -V signal reference. Signal terminals are control references, not load-current connections.
Remote Control, Auxiliary Outputs and Temperature Compensation
Remote ON-OFF
Short CN1 pins 4 and 3 (+5V-AUX): ON; open: OFF
Remote input levels
ON: 4.5–5.5 V; OFF: -0.5–0.5 V; 5.5 V maximum
5 V auxiliary output
4.5–5.5 V, 0.3 A
12 V auxiliary output
10.6–13.2 V, 0.8 A
Temperature compensation
-3 mV/°C/cell; 24 cells for this voltage class
Both auxiliary outputs have an internal ORing diode, are referenced to GND-AUX and remain available independently of the Remote ON-OFF function. GND-AUX is isolated from the main output terminals.
Connect the enclosed 5 kohm NTC thermistor to CN1 pins 15 (RTH+) and 16 (RTH-), placed at the battery or in its vicinity. The charger also operates without this thermistor. With parallel chargers, join all RTH+ terminals together and all RTH- terminals together even when compensation is not required.
Status and Protection
DC OK
CN1 pin 5: high (3.5–5.5 V) at output ≤32 V ±1 V; low (-0.5–0.5 V) at output ≥32 V ±1 V
T-ALARM
CN1 pin 6: high (3.5–5.5 V) for over-temperature alarm or fan failure; low (-0.5–0.5 V) normally
Alarm reference
CN1 pin 2, GND-AUX; isolated from the main DC output
Over-voltage threshold
63–75 V
Over-voltage recovery
Output shutdown; re-power on to recover
Over-temperature recovery
Output shutdown; automatic recovery after cooling
Alarm terminals are output-only TTL signals with a maximum signal current of 10 mA; do not apply an external voltage to these outputs. DC OK is an active-low indication and uses the voltage threshold shown above.
Battery under-voltage, battery not connected and short-circuit protection are also provided. Coordinate external protection with the installation and battery requirements.
Green indicates float; orange indicates charging. Red indicates an abnormal state such as over-temperature protection, overload, fan failure or charging timeout. A flashing red LED warns when internal temperature reaches 60°C: operation may still be normal at that point; this warning is distinct from a protection shutdown. On the PMBus configuration, the warning can also be reported through PMBus.
Parallel Operation
Up to three chargers can share current. Connect DA, DB and -V signal between units using short, heavy output wiring; twist long control wiring to reduce noise. Set output-voltage differences to less than 0.2 V. Allowable combined current is the rated current of one charger × number of chargers × 0.9. Sharing may not be fully balanced below 5% of the aggregate rated output current.
For one charger, leave CN500 unconnected and set SW1 ON. For two chargers, connect CN500 and set both SW1 switches ON. For three chargers, connect all CN500 interfaces and use SW1 ON / OFF / ON along the connection chain. SW1 terminates the DA/DB lines; it is not a communication-protocol selector.
The series lists active sharing up to 4800 W (2+1). Actual usable output remains subject to the selected model's voltage/current limits, the 0.9 sharing factor, input derating and temperature derating.
Connections and Mating Parts
CN1 1 / 2 / 3
+12V-AUX / GND-AUX / +5V-AUX
CN1 4 / 5 / 6
Remote ON-OFF / DC OK / T-ALARM
CN1 7 / 8 / 9
A0 / A1 / A2
CN1 10 / 11 / 12
D0 charge-curve/control selection / PC / PV
CN1 13 / 14
+V (signal) / -V (signal)
CN1 15 / 16
RTH+ / RTH-
CN500 1–2 / 3–4 / 5–6
DA / DB / -V (signal)
CN500 7 / 8
SDA / SCL
AC terminal 1 / 2 / 3
FG / AC neutral (N) / AC line (L)
Main DC output
Connect the marked +V and -V output bars with correctly sized output conductors
CN1 is HRS DF11-16DP-2DS or equivalent, mating with DF11-16DS or equivalent. CN500 is HRS DF11-8DP-2DS or equivalent, mating with DF11-8DS or equivalent. The listed contact family is HRS DF11-**SC or equivalent; select the complete contact reference for the chosen wire and housing. These mating-component references do not specify an included cable assembly.
Address, curve-selection, PV/PC and sharing signals referenced to -V signal are non-isolated from the main output. Communication and auxiliary/alarm functions marked with the isolated reference use GND-AUX. Do not use either signal-voltage terminal as a power-output terminal.
Cooling and Derating
Operating ambient
-30 to +70°C, subject to derating
Working humidity
20–90% RH, non-condensing
Storage
-40 to +85°C; 10–95% RH, non-condensing
Temperature coefficient
±0.03%/°C over 0–50°C
Vibration
10–500 Hz, 2 G; 10 min/cycle, 60 min on each of X, Y and Z
Cooling
Built-in thermostatically controlled DC fan
With horizontal installation, the thermal curve allows 100% load from -30°C through 50°C and falls to 50% at 70°C. Operation from -30°C to -25°C requires 230 VAC input.
The 60 Hz input-voltage curve shows 60% load at 90 VAC, rising to 100% at 180 VAC and remaining at 100% through 264 VAC. Apply this limit together with the thermal curve.
For these fan-cooled units above 2000 m, reduce the permitted ambient temperature by 5°C per additional 1000 m. Keep the fan and airflow path unobstructed.
Dimensions, Installation and Options
Body dimensions, L × W × H
300 × 85 × 41 mm (1U)
Mechanical drawing
Case 250; general tolerance ±0.5 mm
Unit mass
2100 g; catalogue PACKING reference per unit
Transport packing
6 pcs / 13.6 kg / 1.25 CUFT
Conformal coating
Optional configuration
Charging programmer
SBP-001, selected separately; personal computer required
The AC-terminal projection is 12 mm maximum; the negative and positive DC output bars project 28 mm and 38 mm, respectively. The DC-bar connection holes are 6.5 mm in diameter. The drawing gives 252 mm longitudinal and 105 mm transverse mounting pitches, with 115 mm overall flange width. Airflow is towards the fan end, away from the power-terminal end. For side M4 mounting, penetration is 5 mm maximum and tightening torque is 7–10 kgf·cm; for bottom M3 mounting, penetration is 4 mm maximum and torque is 6–8 kgf·cm. The AC terminal has an 8 kgf·cm maximum tightening torque.
The RPB-1600 series specifies a power-density ceiling of up to 25 W/in³; this is a series description rather than a separate per-model output rating. Select optional configurations and mating parts for the complete system; a listed connector or programmer reference does not by itself mean that item is supplied with the charger.
Safety, EMC and Reliability
Catalogue safety approvals
UL62368-1; TUV BS EN/EN62368-1; EAC TP TC 004
Dielectric withstand
Input/output: 3 kVAC; input/FG: 2 kVAC; output/FG: 1.5 kVAC
Insulation resistance
100 Mohm at 500 VDC, 25°C, 70% RH: input/output, input/FG and output/FG
MTBF, minimum
457.7 thousand hours, Telcordia SR-332; 100.3 thousand hours, MIL-HDBK-217F at 25°C
Warranty
5 years
EMC emissions: BS EN/EN55032 (CISPR32), conducted Class B and radiated Class A; BS EN/EN61000-3-2 and -3; EAC TP TC 020. Immunity: BS EN/EN61000-4-2/-3/-4/-5/-6/-8/-11, BS EN/EN55035 and EAC TP TC 020.
The charger is a component for installation in final equipment. Catalogue EMC tests use a 720 × 360 × 1 mm metal plate; the complete equipment must reconfirm compliance.
Typical applications include large DC UPS and emergency backup systems, marine charging modules, vehicle charging stations, wastewater treatment and electrolysis systems, subject to the installation's electrical and environmental requirements.
Read
more
less
