MEAN WELL HEP-1000-24 is a fanless industrial AC/DC power supply with a factory 24 V output and 42 A / 1008 W power-supply ratings. This terminal version uses PMBus and supports a configurable charging profile.
Product Datasheet
Download MEAN WELL HEP-1000 Datasheet (PDF)
The HEP-1000 section is on PDF pages 30, 31, 32, 33, 34, 35, 36, 37, 38. Refer to the complete mechanical drawings and notes when planning installation.
Model and Configuration
Complete order code
HEP-1000-24
Series
HEP-1000
Connection construction
terminal
Operating configuration
Power-supply mode by default; charging can be configured
Communication interface
PMBus
Catalogue configuration availability
In Stock
The full suffix selects the interface and construction. Catalogue availability identifies the configuration, not current distributor stock.
Terminal blank selects PMBus, and CAN selects CANBus. W selects wired PV/PC; WPM/WCAN are wired power-supply protocols; WCPM/WCCAN are wired charging configurations. The listed functions apply to this exact code.
Output Ratings and Adjustment
DC output voltage
24 V
Rated output current
42 A
Rated output power
1008 W
Ripple and noise maximum
200 mVp-p
Voltage tolerance
±1%
Line regulation
±0.5%
Load regulation
±0.5%
Output adjustment range
24–30 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.
Battery-Charging Configuration
Default boost charge voltage
28.8 V
Default float charge voltage
27.6 V
Rated charging current
35 A
Battery-capacity reference
120–350 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
10.1 A at 115 VAC; 5.3 A at 230 VAC; 4.5 A at 277 VAC
Typical efficiency
95%
Typical cold-start inrush current
40 A at 230 VAC
Leakage current
<0.75 mA at 240 VAC
Set-up / rise time
1800 / 80 ms at 115 or 230 VAC, full load
Typical hold-up time
16 ms at 230 VAC, 75% load; 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
105–125% of rated current
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
30–35 V; shutdown, reapply AC power
Over-temperature protection
Shutdown; automatic recovery after cooling
In power-supply mode, output below 80% of the set voltage for five seconds causes shutdown. In charger mode the corresponding threshold is 67%. Use only the mode supported by this code.
External Voltage and Current Programming
External PV input
0–5 VDC
Output-voltage programming range
50–125% of nominal voltage
External PC input
0–5 VDC
Current programming range
20–100% of rated current
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.
In power-supply mode, output below 80% of the set voltage for five seconds shuts down the output and requires AC power to be reapplied.
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 specification gives 4.4–5.5 V ON and −0.5 to +0.5 V OFF. 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.
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 = −Vo; 3, 4 = +Vo
CN71 board connector / CN71 mating housing
JST S14B-PHDKS-B; JST PHDR-14VS
CN71 crimp contact / CN71 pin 1 / pin 2
JST SPHD-001T-P0.5; PV / PC
CN71 pins 3 and 4 / CN71 pin 5
GND(signal), non-isolated; Remote ON/OFF
CN71 pin 6 / CN71 pins 7 and 8
DC OK; +12 V AUX
CN71 pins 9 and 10 / CN71 pin 11
GND-AUX; SDA
CN71 pin 12 / CN71 pin 13 / pin 14
SCL; RTH+ / RTH−
Remote ON/OFF uses 10.8–13.2 V for ON and 0–0.5 V/open for OFF, maximum 13.2 V. AUX is 10.8–13.2 V, 0.5 A maximum.
Detailed DC OK thresholds are ≤77% ±6% of nominal output for low and ≥80% ±6% for high in power-supply mode; charging thresholds are ≤66% ±6% and ≥67% ±6%. High is 4.4–5.5 V, low is −0.5 to +0.5 V; maximum sourcing current is 10 mA.
PV/PC use GND(signal). Remote, auxiliary and status use isolated GND-AUX. Follow the numbered connector view and the reference for each signal.
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 +80°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.
The horizontal temperature curve permits 100% load through +50°C and reduces to 60% at +70°C. The 60 Hz input curve shows approximately 65% load at 90 VAC, reaching full load at 180 VAC and remaining full through 305 VAC.
Dimensions, Mounting and Weight
Catalogue body dimensions
310 × 144 × 48.5 mm
Catalogue packing reference per unit
4000 g
Mechanical drawing
Case 228F; dimensions in millimetres
Mounting holes
Four Ø4.5 mm holes; use the complete drawing for locations
This is the catalogue packing reference per unit, not a measured net or parcel mass. The table lists 4 kg per unit and four units per 18.25 kg carton.
Allow connection and cable clearance separately from body dimensions.
The input and output terminal drawing separately marks 19.3 mm maximum projections, outside the 310 mm body length.
Compatible Optional Equipment
Charging configuration option
SBP-001 programmer for the fitted charging protocol
CN71 mating housing and contact
PHDR-14VS and SPHD-001T-P0.5
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
3 kVAC
Input-to-FG withstand
2 kVAC
Output-to-FG withstand
1.25 kVAC
Insulation resistance
100 MΩ at 500 VDC, 25°C, 70% RH
Minimum MTBF, Telcordia SR-332
583.7 k hours
Minimum MTBF, MIL-HDBK-217F at 25°C
52.3 k hours
Additional power-supply approval
BIS IS13252 (Part 1):2010 / IEC60950-1:2005; check the supplied unit’s approval marking
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 B in power-supply mode and Class A in charger mode. 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 720 × 360 × 1 mm metal plate.
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