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Mean Well LAD-240B Security/Fire Alarm PSU with Battery Charger/UPS, 240W, 27.6V
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Mean Well LAD-240B Security/Fire Alarm PSU with Battery Charger/UPS...
The LAD is a Mean Well power converter.
Key Features
- ✓ DC output voltage adjustable ±10%
- ✓ 3KVAC reinforced I/O isolation
- ✓ Cooling by free air convection
- ✓ Protections: Short circuit / Overload / Over voltage / Over temperature / Reverse polarity / Under voltage
- ✓ Safety approvals: EN/EN61000-4-2 BS EN/EN61000-4-3 BS EN/EN61000-4-4 BS EN/EN61000-4-5 BS EN/EN61000-4-6 BS EN/EN61000-4-8
- ✓ 3 years warranty
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BrandMean Well
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SeriesLAD Series
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Power Rating240 Watt
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Output Voltage27.6 Volt
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Rated Current7.7 Ampere
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Input Voltage90V~132V
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No of Output2
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Standards MetCB,CE,EAC,EMC,RCM,SAA
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Operating Temperature-20°C~60°C
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Warranty3 Year
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Length8.46 in
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Width4.53 in
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Height1.18 in
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Weight1.65 lb
::specification::
Frequently Asked Questions
What is the Mean Well LAD-240B designed for?
The LAD-240B is a 240W security and fire alarm power supply with a built-in battery charger and UPS function. It is intended for applications that need a regulated 27.6V DC output plus battery-backed operation during AC power loss.
What are the main electrical ratings of the LAD-240B?
This model is rated for 240W total output power with a 27.6V DC output and 7.7A rated current. The output voltage for CH1 is adjustable by VR within a -2% to +5% range.
Does the LAD-240B support battery backup operation?
Yes. It includes a built-in battery charger and UPS function, and it also provides a forced UPS mode for battery maintenance. The unit is suitable for both lead-acid and lithium-ion batteries.
What status monitoring signals are available on the LAD-240B?
The power supply provides TTL status signals for AC OK, battery disconnect, battery reverse polarity, battery low, battery full, and discharge. These signals can help support system-level status detection in monitored security or fire alarm applications.
What protection features does the Mean Well LAD-240B include?
The LAD-240B includes protection for short circuit, overload, over voltage, over temperature, battery low voltage, and battery reverse polarity. The battery reverse polarity protection is specified as no-damage protection.
Is the LAD-240B suitable for demanding operating environments?
Yes. It is rated for operation from -20°C to +60°C and is built in a low-profile 1U, 30mm-high form factor. It also meets listed safety and EMC approvals including UL62368-1, EN62368-1, AS/NZS62368.1, and EN55032 Class B.
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