MEAN WELL HEP-2300-55PM is a fanless industrial AC/DC power supply with a factory 55 V output and 41.8 A factory current and a 2304 W maximum-power limit. This terminal version uses PMBus and supports a configurable charging profile.
Product Datasheet
Download MEAN WELL HEP-2300 Datasheet (PDF)
The HEP-2300 section is on PDF pages 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54. Refer to the complete mechanical drawings and notes when planning installation.
Model and Configuration
Complete order code
HEP-2300-55PM
Series
HEP-2300
Connection construction
terminal
Operating configuration
Power-supply mode by default; charging can be configured
Communication interface
PMBus
Catalogue configuration availability
By request
The full suffix selects the interface and construction. Catalogue availability identifies the configuration, not current distributor stock.
Terminal blank selects CANBus, and PM selects PMBus. W is the wired PV/PC version; WPM/WCAN select wired protocols. H/HPM/HMOD use waterproof connectors with CANBus, PMBus or Modbus RTU respectively.
Output Ratings and Adjustment
Factory default output voltage
55 V
Factory default output current
41.8 A
Factory default output power
2300 W
Maximum output current
48 A
Maximum rated output power
2304 W
Voltage range at maximum rated power
48–57.6 V
Ripple and noise maximum
480 mVp-p
Voltage tolerance
±1%
Line regulation
±0.5%
Load regulation
±0.5%
Output adjustment range
39–57.6 V
Voltage tolerance includes initial setting, line and load regulation. Ripple/noise is measured with 20 MHz bandwidth, a 12-inch twisted-pair lead, and 0.1 µF plus 47 µF capacitors in parallel at the output.
Observe voltage, current, rated-power and derating limits together. Maximum voltage and maximum current are not unrestricted simultaneous operating points. Use only the local or external adjustment available on this construction.
Factory voltage, current and printed power are separate catalogue entries; their rounded product does not replace the maximum-power limit.
Battery-Charging Configuration
Default boost charge voltage
57.6 V
Default float charge voltage
55.2 V
Rated charging current
40 A
Battery-capacity reference
120–400 Ah
Factory charging profile
Three stages
Three-stage charging uses constant current, constant boost voltage and then float. The two-stage curve omits float. The illustrated completion/float transition is at 10% of charging current.
The charging table lists open and sealed lead-acid batteries. The programmable description also covers lithium-ion types, including lithium iron phosphate and lithium manganese. Confirm all voltage, current, stage and timeout settings with the battery manufacturer; the suggested Ah range is not permission to exceed its charging-current limit.
Use the separately selected MEAN WELL SBP-001 smart battery-charging programmer with a PC, or the actual fitted communication protocol, to configure curves and timeout parameters. This terminal version is supplied in power-supply mode and must be configured before use as a charger.
Power-supply and charging currents are different mode ratings. Do not substitute one for the other or replace the printed power limit by multiplying rounded charging-table values.
Input Supply and Timing
AC input voltage range
90–305 VAC
DC input voltage range
250–431 VDC
AC frequency
47–63 Hz
Typical power factor
>0.99 at 115 VAC; >0.95 at 230 VAC; >0.93 at 277 VAC, full load
Typical input current
13.3 A at 115 VAC; 11 A at 230 VAC; 9.3 A at 277 VAC
Typical efficiency
95.5%
Typical cold-start inrush current
60 A at 230 VAC
Leakage current
<1.8 mA peak at 240 VAC; <2 mA peak at 277 VAC
Set-up / rise time
1800 / 100 ms at 230 VAC, full load
Typical hold-up time
12 ms at 230 VAC, full load
Unless otherwise stated, specifications are measured at 230 VAC, rated load and 25°C ambient. Active PFC is built in. Apply the input-voltage derating curve; the input range does not guarantee full output at every voltage.
Set-up and rise times refer to the first cold start. Rapid repeated switching can increase rise time.
Protection and Recovery
Overload threshold
105–115% of rated output power
Overload recovery
Constant-current limiting, then output shutdown after 5 seconds; reapply AC power
Short-circuit protection
Constant-current limiting, then output shutdown after 5 seconds; reapply AC power
Over-voltage protection
59–69.1 V; shutdown, reapply AC power
Over-temperature protection
Shutdown; automatic recovery after cooling
External Voltage and Current Programming
External PV input
0–5 VDC
Output-voltage programming range
50–120% of the plotted voltage reference
External PC input
0–5 VDC
Current programming range
20–100% of rated current
PV 100% voltage reference
48 V
The voltage/current control relationships are non-linear. Use the catalogue curves rather than proportional interpolation. Below 0.4 V external control, the default setting applies. The minimum-control plateau is 50% voltage or 20% current.
PV/PC use the non-isolated GND(signal) reference, not GND-AUX. Applying PV control disables the local SVR voltage adjustment; follow the connections for this exact construction.
The voltage-dependent current envelope rises from 80% at 24 V to 100% at 43.2 V, stays at 100% through 48 V, and falls to 83.3% at 57.6 V. The factory voltage is a separate operating point; observe the maximum-power limit.
PC reaches its plotted 100% current point at 4.7 V external control. The manufacturer recommends a programmed current below 100% of rated current.
Auxiliary Output, Control and Status
Auxiliary output
12 V, 0.5 A, ±10%; maximum ripple 150 mVp-p
Auxiliary behaviour
Available independently of remote main-output ON/OFF
Remote ON/OFF
Short Remote ON/OFF to +12 V AUX for ON; open for OFF
DC OK signal
High for output ON; low for output OFF
Battery-temperature compensation
5 kΩ NTC thermistor, RTH+ and RTH−
AUX is a separate control supply. Do not add its current to the main output rating. Its GND-AUX return is isolated from the main DC output.
This order code supports PMBus. Use its manufacturer protocol manual for addresses, commands and bus parameters; PMBus, CANBus and RS-485 are not interchangeable interfaces.
The main specification gives 4.5–5.5 V ON; the detailed interface table gives 4.4–5.5 V high. Both use −0.5 to +0.5 V low. Reference DC OK to GND-AUX; maximum sourcing current is 10 mA and maximum external voltage is 5.5 V.
Place the supplied NTC close to the battery. It compensates charging voltage and is distinct from internal over-temperature protection. The charger can operate without this NTC connection.
In power-supply mode green indicates normal output and red indicates protection. During charging, orange indicates stages 1/2, green indicates float/stage 3, and red indicates protection or charging timeout. Flashing red is the approximately 95°C internal-temperature warning while output remains operating; it is not an ambient-temperature rating.
Connections, Pin Assignments and Mating Parts
AC terminals / DC terminals
1 = FG; 2 = AC/L; 3 = AC/N; 1, 2, 3 = +V; 4, 5, 6 = −V
CN81 board connector / CN81 mating housing
JST S8B-PHDKS-B; JST PHDR-8VS
CN11 board connector / CN11 mating housing
JST S14B-PHDKS-B; JST PHDR-14VS
Crimp contact for both connectors / CN81 pin 1 / pin 2
JST SPHD-001T-P0.5; PV / PC
CN81 pins 3 and 4 / CN81 pins 5 and 6
GND(signal), non-isolated; RTH+
CN81 pins 7 and 8 / CN11 pins 1 and 2
RTH−; Remote ON/OFF
CN11 pins 3, 4, 13 and 14 / CN11 pins 5 and 6
NC: do not connect; DC OK
CN11 pins 7 and 8 / CN11 pins 9 and 10
+12 V AUX; GND-AUX
CN11 pin 11 / CN11 pin 12
SDA; SCL
Short the remote input to AUX for ON; open it for OFF. The detailed table gives 10.8–13.2 V ON, 0–0.5 V OFF and a maximum 13.2 V input. AUX remains available when the main output is remotely OFF.
The detailed DC OK table specifies 4.4–5.5 V high, −0.5 to +0.5 V low and 10 mA maximum sourcing current. Power-supply low/high thresholds are ≤77% ±6% and ≥80% ±6% of nominal voltage. Charger thresholds are ≤66% ±6% and ≥67% ±6%.
CN81 PV/PC use non-isolated GND(signal). CN11 controls use GND-AUX, isolated from the main output. Follow the actual orientation and leave NC contacts disconnected.
Environment and Derating
Working ambient temperature
−40 to +70°C, subject to load and orientation
Working humidity
20–95% RH, non-condensing
Storage temperature
−40 to +85°C
Storage humidity
10–95% RH, non-condensing
Temperature coefficient
±0.03%/°C from 0 to 50°C
Vibration
20–500 Hz, 10G; 12 minutes/cycle, 72 minutes each along X, Y and Z
Cooling and case
Fanless conduction cooling; aluminium case filled with heat-conducting glue
Catalogue warranty
6 years
For operation above 2000 m, reduce the permitted ambient temperature by 3.5°C for each additional 1000 m for this fanless supply. Follow the stated orientation and mounting clearances.
Horizontal mounting permits full load through +40°C and reduces to 60% at +60°C. Vertical mounting permits full load through +50°C and reduces to 60% at +70°C. Do not extend the horizontal curve beyond its plotted +60°C endpoint.
The 60 Hz input curve shows 50% load at 90 VAC, 60% at 115 VAC and full load from 220 through 305 VAC. Apply input and temperature derating together.
The catalogue life reference is at least 55,000 hours when the marked case temperature Tc is approximately 80°C or less. The temperature-dependent life plot is a design reference, not a warranty extension.
The charging specification lists storage at −40 to +80°C; the power-supply specification lists −40 to +85°C. Use the applicable mode specification.
Dimensions, Mounting and Weight
Catalogue body dimensions
375 × 280 × 88 mm
Catalogue packing reference per unit
12500 g
Standard mounting-plate envelope references
447 mm length; 91 mm height
Bottom mounting
Four M6, L = 25 mm screws
Side mounting
Two M6, L = 15 mm screws
This is the catalogue packing reference per unit, not a measured net or parcel mass. The table lists 12.5 kg per unit and one unit per 13.5 kg carton.
Allow connection and cable clearance separately from body dimensions.
Use the mounting drawing’s edge-reference coordinates for hole positions and apply the corresponding horizontal or vertical thermal curve.
Rear pole mounting uses PGG2BKT-003 with PGG2BKT-004. Side pole mounting uses PGG2BKT-001, PGG2BKT-002 and PGG2BKT-004. The illustrated pole installation has the AC-input side downward.
Compatible Optional Equipment
Optional housing-side bracket
PGG2BKT-001
Optional pole-side bracket
PGG2BKT-002
Optional rear plate
PGG2BKT-003
Optional pole-attachment kit
PGG2BKT-004
Charging-curve programming option
SBP-001 for the fitted supported protocol
Select only the items listed here for the stated construction and purpose. Optional items are selected separately according to the actual order; an installation illustration does not establish package contents.
Safety, EMC and Reliability
Safety approvals
UL62368-1; TUV BS EN/EN62368-1; EAC TP TC 004
Input-to-output withstand
6 kVDC
Input-to-FG withstand
4 kVDC
Output-to-FG withstand
4 kVDC
Insulation resistance
100 MΩ at 500 VDC, 25°C, 70% RH
Minimum MTBF, Telcordia SR-332
478 k hours
Minimum MTBF, MIL-HDBK-217F at 25°C
44.8 k hours
Over-voltage category
OVC III
BS EN/EN61558-1 and BS EN/EN60335-1 are design references available by request; this does not constitute approval of the complete installation.
Conducted emissions follow BS EN/EN55032 (CISPR32) Class B. Radiated emissions are Class A. Harmonic current follows BS EN/EN61000-3-2 Class A; flicker follows BS EN/EN61000-3-3.
Immunity references are BS EN/EN55024 and BS EN/EN61000-6-2: ESD 8 kV air / 4 kV contact; radiated immunity and EFT level 3; surge 2 kV line-to-line / 4 kV line-to-earth; conducted immunity level 3; magnetic-field level 4. Dips include >95% for 0.5 period and 30% for 25 periods, with >95% interruption for 250 periods.
This is a component for installation in finished equipment. Confirm EMC in the final system. The test setup uses a 1100 × 650 × 1 mm metal plate. For the specified isolation test, temporarily remove the identified Screw A and reinstall it afterward.
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