EMTech EMT 40000 EMT40024X Power Supply Charger
EM TECH Power
Refurbished
The EMTech Power EMT 40000, commonly searched by the exact model reference EMT40024X, is a professional high-frequency power supply and battery charger designed for continuous-duty DC systems.
The unit photographed by SM MARINE SERVICE™ is manufactured by EMTech Power, Denmark and belongs to the EMT 40000 charger family.
The photographed nameplate identifies the following important information:
Manufacturer: EM TECH Power
Country: Denmark
Series: EMT 40000
Type / Search Reference: EMT40024X
Input: 200–240VAC ±10%
Input Current: 3A
Frequency: 45–65Hz
Output: approximately 27.6VDC nominal
Adjustable Output Range: approximately 26.00–31.00VDC
Output Current: 15A
Application: Power Supply / Battery Charger
Battery System: 24V-class lead-acid battery system
The EMT 40000 technical description identifies the series as a 390–470W charger / power supply developed for charging and maintaining lead-acid batteries.
The EMT 40000 is a combined:
DC Power Supply
and
Lead-Acid Battery Charger
designed to provide power to connected equipment while simultaneously maintaining the associated battery bank.
The technical documentation states that the unit allows connected loads to draw current while the battery is being charged. It is intended for continuous operation and includes electronic protection against overload and other abnormal conditions.
This dual-purpose design is particularly useful in shipboard systems where the battery must remain charged while the connected automation, alarm, communication or instrumentation equipment stays operational.
The front panel is branded:
EMT 40000
while market listings identify the specific product as:
EMT40024X / EMT 40024X
and categorise it as:
POWER SUPPLY / CHARGER.
Therefore, all of these forms should be used in SEO:
EMT 40000
EMT40000
EMT-40000
EMT40024X
EMT 40024X
EMT-40024X
This is particularly important because marine buyers often search directly using the label or MPN rather than the complete product description.
The photographed unit is designed for approximately:
200–240VAC
with:
±10% tolerance
and:
45–65Hz
input frequency.
The EMT 40000 family technical documentation gives a broader series input specification around 185–264VAC, which is consistent with the unit being designed to tolerate normal mains variations.
For replacement purposes, the exact label of the installed charger should take priority over general family specifications.
Although this equipment is commonly described as a 24V charger, the charging voltage is naturally higher than 24V.
The photographed unit is set around:
27.6VDC
with an adjustment range printed on the label of approximately:
26.00–31.00VDC.
This is normal for a charger intended for a nominal 24V lead-acid battery system.
It is therefore useful to optimise the page for both:
24V battery charger
and
27.6VDC power supply charger
search phrases.
The exact photographed EMT40024X is marked:
Current: 15A
on the DC output side.
A 15A charging/output capability allows the unit to maintain a battery bank and supply the connected DC load within the system's design limits.
For buyer searches, important phrases include:
EMT40024X 15A
27.6V 15A charger
24V 15A marine battery charger
One of the strongest features of the EMT 40000 family is battery temperature compensation.
The technical documentation states that the charger can automatically compensate charging behaviour according to battery temperature, helping reduce the risk of excessive or insufficient charging under changing ambient conditions.
The front of the photographed charger includes dedicated references to:
BATT. TEMP.
which is consistent with this feature.
Temperature-compensated charging is especially useful for marine installations where machinery-space temperature can vary substantially.
The EMT 40000 technical description lists:
Constant Charging / Loading
as a key feature.
This means the charger is designed to remain permanently connected to the battery and DC load in applications requiring continuous availability.
For marine systems, this can be particularly valuable where equipment must remain powered even while the batteries are charging.
The series also supports:
Trip Point Charging
according to available technical documentation.
The charger can therefore be configured for battery-management requirements rather than operating as a simple fixed-output DC supply.
The exact trip-point settings should be established according to the battery manufacturer's requirements and the EMT 40000 technical instructions.
The EMT 40000 has configurable settings accessible through DIP switches.
The technical description explains that these switches allow the factory settings to be adjusted for different:
Battery types
and
applications.
This means a replacement charger should not simply be installed without checking its configuration.
Before removing an original unit, engineers should document the existing switch positions.
One of the EMT 40000 family's most important technical features is parallel operation.
The manufacturer literature states that up to 10 units can be connected in parallel to increase available charge current.
This provides scalability and redundancy for higher-capacity battery systems.
When several EMT 40000 units operate in parallel, dedicated:
POWER SHARE
connections allow the chargers to share the total current load.
The photographed front panel also includes SHARE / MASTER type markings.
This is an important search keyword because engineers troubleshooting multi-charger installations may search for:
EMT 40000 power share fault
or
EMT40024X parallel charger
rather than simply searching for the model.
The photographed EMT 40000 contains several useful status indicators:
INPUT OK
TEMP./POL.
REGULATION
POWER LIMIT
along with an:
OUTPUT POWER
LED bar indicating approximately:
10% to 100%
load/output level.
These indicators allow technicians to quickly evaluate the charger's operating condition without external diagnostic equipment.
A green:
INPUT OK
indicator confirms that the incoming AC supply is available and accepted by the charger.
If the charger has no DC output and INPUT OK is not illuminated, the AC input circuit should be checked before suspecting the internal charging electronics.
The front panel includes:
TEMP./POL.
which relates to temperature and polarity-related protection/status.
The EMT 40000 family documentation confirms both:
reverse-polarity protection
and
over-temperature protection.
If this indicator is active, engineers should verify battery polarity, temperature-sensor connections and operating temperature before replacing the complete charger.
The:
REGULATION
status indicates the charger's voltage/current regulation condition.
If the charger remains in an unexpected regulation state, check:
battery voltage
connected load
charge setting
battery condition
before assuming hardware failure.
The POWER LIMIT indication can become relevant when the required output approaches or exceeds the charger's available power.
The EMT 40000 documentation explains that the charger includes over-current protection and is designed to tolerate overload without being damaged.
This is a significant advantage in industrial and marine DC systems.
EMTech describes the EMT 40000 as a high-frequency power supply/charger.
The documentation reports efficiency as high as approximately:
85–87%.
High-frequency switching allows a comparatively compact unit while maintaining substantial output power.
The front of the EMT 40000 contains a cooling fan.
According to the technical description, the fan is temperature/load controlled rather than simply operating continuously.
This helps:
reduce noise
reduce unnecessary fan wear
increase fan lifetime
while still maintaining correct internal operating temperature.
The technical description states that EMT 40000 units use a durable aluminium enclosure with protected internal circuit boards and are designed with marine-type environmental considerations.
Important construction features include:
coated PCBs
solid connectors
aluminium housing
temperature-controlled fan
These characteristics help explain why EMT 40000 units are encountered in shipboard installations.
Available EMT 40000 series documentation gives an operating-temperature range of approximately:
-30°C to +55°C.
This wide operating range supports industrial and marine applications where ambient conditions may be considerably harsher than normal office environments.
The EMT 40000 family includes multiple built-in protection functions.
Documented features include:
Over-voltage protection
Over-current protection
Reverse-polarity protection
Over-temperature protection.
These protections help safeguard both the charger and connected battery/DC system.
EMTech documentation specifically describes the EMT 40000 family as being designed for:
recharging and maintaining lead-acid batteries.
This makes it particularly suitable for standby and continuously powered systems.
Battery type and charging settings should still be verified before installation.
The EMT 40000 / EMT40024X can be encountered in different marine and industrial DC installations.
Typical application categories may include:
Navigation equipment power supply
Marine automation DC supply
Alarm and monitoring systems
Tank monitoring systems
Emergency DC systems
Battery-backed control equipment
Marine instrumentation
The exact application depends on the vessel installation.
One particularly useful market reference identifies:
EM TECH POWER EMT 40000
as a:
POWER SUPPLY FOR SAAB ROSEMOUNT TANK RADAR.
This gives us valuable high-intent keywords:
SAAB Rosemount EMT 40000
TankRadar EMT 40000 power supply
SAAB tank radar battery charger
However, this should be understood as a documented application in the marine aftermarket—not evidence that every EMT 40000 was manufactured exclusively for SAAB Rosemount systems.
The charger is a general professional battery charger/power-supply platform and can be used in other compatible installations.
Check:
AC supply voltage
upstream breaker
input fuse
P / phase terminal
N / neutral terminal
wiring condition
The photographed unit is labelled for approximately 200–240VAC input.
If the AC supply is correct but INPUT OK remains off, internal diagnosis may be necessary.
Check the DC output terminals and measure battery voltage.
Also verify:
internal protection state
battery polarity
temperature status
configuration switches
Do not assume the power stage is defective before checking the battery and external wiring.
Check the battery polarity immediately.
Then inspect:
battery temperature sensor
temperature-sensor wiring
charger temperature
cooling fan
because the unit includes reverse-polarity and over-temperature protection.
Check the connected DC load and battery charge current.
If the charger is operating close to maximum capacity, the power-limit function may become active.
Inspect whether the battery is deeply discharged or whether an abnormal external load is consuming excessive current.
Check:
battery condition
output-voltage setting
battery temperature compensation
DIP-switch configuration
actual charger current
A degraded battery can appear to be a charger fault.
The photographed unit has an adjustable output range around 26–31VDC.
Before adjusting anything, record the existing setting and verify the correct charging voltage for the battery type.
Incorrect voltage adjustment can shorten battery life.
This does not necessarily indicate a fault.
The EMT 40000 uses a temperature-controlled fan, so fan speed/operation varies with loading and internal temperature.
Check:
POWER SHARE wiring
MASTER/SHARE configuration
equal DC connections
individual charger settings
The EMT 40000 family is designed for current-sharing in parallel installations.
Before replacing an EMT 40000 charger, verify:
Series: EMT 40000
Exact Type: EMT40024X / installed label
AC Input Voltage
DC Output Voltage
Output Current
Battery Voltage
Battery Type
DIP-Switch Configuration
Battery Temperature Sensor
Power Share Connections
Remote/Relay Connections
Installation Application
Do not select a replacement solely because the front panel says EMT 40000.
This distinction is useful for SEO.
EMT 40000 is the charger family/series designation.
EMT40024X / EMT 40024X is a specific model/MPN widely used in current replacement-market listings.
Therefore both terms should appear in quotations, product pages and search metadata.
SM MARINE SERVICE™ supports worldwide supply and sourcing of EMTech Power EMT 40000 / EMT40024X Power Supply Chargers and related marine DC power equipment.
Depending on stock availability, equipment may be supplied as:
New / New Old Stock
Used Tested Working
Refurbished
Reconditioned
Current marine-market listings continue to advertise EMT 40000 / EMT40024X units as used working power-supply chargers, confirming ongoing replacement demand.
For marine electronics, battery chargers and automation power supplies, customers can also visit SM MARINE SERVICE™.
Marine control, navigation and monitoring systems often remain operational for decades.
Replacing the correct battery charger can be far simpler than redesigning an entire DC power arrangement.
The EMT 40000 remains attractive for legacy systems because it combines:
battery charging
DC load supply
parallel operation
temperature compensation
electrical protections
power sharing
in a robust marine/industrial unit.
It is a professional battery charger / DC power supply family designed for charging and maintaining lead-acid batteries while powering connected loads.
EMT40024X is a specific EMT 40000-series model/MPN widely identified in marine replacement-market listings as an EMTech Power Supply / Charger.
The photographed unit is labelled approximately 200–240VAC ±10%, 45–65Hz.
The photographed unit is set around 27.6VDC, with an adjustable range of approximately 26–31VDC.
The photographed unit is marked 15A.
Yes. It is suitable for a nominal 24V-class battery system, with charging voltage above 24V.
Yes. Battery-temperature-compensated charging is one of the documented EMT 40000 features.
Yes. Available documentation states that up to 10 units may be connected in parallel, using Power Share connections for load sharing.
Yes. Reverse-polarity protection is listed among the EMT 40000 series features.
Yes. Over-current protection is documented for the EMT 40000 family.
Not necessarily. The technical description states that the fan is temperature/load controlled.
A marine-market listing specifically identifies an EMT 40000 power supply as being used for a SAAB Rosemount Tank Radar installation.
Not automatically. Input/output ratings, configuration, battery settings, Power Share wiring and system application should be checked.
SM MARINE SERVICE™ can support worldwide sourcing of EMTech Power EMT 40000 / EMT40024X battery chargers and marine DC power-supply equipment, subject to availability.
EMTech Power EMT 40000 / EMT40024X is a Denmark-made professional marine and industrial power supply / battery charger designed for 24V-class lead-acid battery systems. The photographed unit uses approximately 200–240VAC input, 27.6VDC nominal adjustable output and 15A output current. EMT 40000 features include battery-temperature compensation, constant charging/loading, parallel operation, Power Share current balancing, temperature-controlled cooling, 10–100% output indication and protection against over-voltage, over-current, reverse polarity and over-temperature. Marine replacement references also document EMT 40000 in SAAB Rosemount tank-radar installations.
SM MARINE SERVICE™
Marine Automation & Navigation Equipment Supplier
Available Condition:
• New Equipment • Used Equipment • Refurbished Equipment • Reconditioned Equipment
Stock Location:
• Bangladesh • China
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Contact Information
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Mobile / WhatsApp / Viber: +88 01818 929292
Email: info@smmarineservice.com
Website: www.smmarineservice.com
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