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Mean Well LAD-120A Security/Fire Alarm PSU with Battery Charger/UPS...
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Description
Description
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
Specifications
Specifications
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BrandMean Well
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SeriesLAD Series
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Power Rating120 Watt
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Output Voltage13.8 Volt
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Rated Current7.7 Ampere
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Input Voltage90V~264V
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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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Length15.9 cm
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Width9.7 cm
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Height3 cm
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Weight0.42 kg
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Payment & Security
Payment methods
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Frequently Asked Questions
What is the Mean Well LAD-120A designed for?
The LAD-120A is a 120W security and fire alarm power supply with a built-in battery charger and UPS function. It is intended for systems that need a regulated 13.8VDC output plus battery-backed continuity during AC power loss.
What output does the LAD-120A provide?
This model provides a 13.8VDC nominal output and is rated for 120W total power. Its rated current is 7.7A, making it suitable for security and fire-related DC power applications that require this voltage class.
Does the LAD-120A support battery backup operation?
Yes. The LAD-120A includes a built-in battery charger and UPS function, so it is designed to support backup battery operation. It is also suitable for both lead-acid and lithium-ion batteries.
What status monitoring features are available on the LAD-120A?
This model provides TTL status signals for AC OK, battery disconnect, battery reverse polarity, battery low, battery full, and discharge. These signals can help system-level monitoring and fault detection in security or fire alarm applications.
What protection features does the LAD-120A include?
The LAD-120A includes protection for short circuit, overload, over voltage, and over temperature. It also includes battery low voltage protection and battery reverse polarity protection with no damage stated in the product data.
Can the LAD-120A be used in demanding temperature conditions?
Yes. The specified operating temperature range is -20°C to +60°C, which supports use in a wide range of indoor equipment environments. Buyers should still confirm that the surrounding enclosure and overall system stay within the product's rated conditions.
How compact is the Mean Well LAD-120A?
The LAD-120A uses a 1U low-profile design with a height of 30mm. Its listed dimensions are 159 x 97 x 30mm, and the unit weight is 0.42kg, which helps when space is limited inside security or fire system enclosures.
What certifications or standards are listed for the LAD-120A?
The product data lists safety approvals including UL62368-1, BS EN/EN62368-1, AS/NZS62368.1, and EAC TP TC 004. It also lists EMC compliance to EN55032 Class B and several EN61000 immunity standards, with design reference to GB 17945-2010.
