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Mean Well LAD-120C Security/Fire Alarm PSU with Battery Charger/UPS, 120W, 41.5V

built-in battery charger and UPS function, TTL signals for status detection, forced UPS mode for battery maintenance, 1U low profile
SKU:
LAD-120C

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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

  • Brand
    Mean Well
  • Series
    LAD Series
  • Power Rating
    120 Watt
  • Output Voltage
    41.5 Volt
  • Rated Current
    1.9 Ampere
  • Input Voltage
    90V~264V
  • Standards Met
    CB,CE,EAC,EMC,RCM,SAA
  • Operating Temperature
    -20°C~60°C
  • Warranty
    3 Year
  • Length
    15.9 cm
  • Width
    9.7 cm
  • Height
    3 cm
  • Weight
    0.42 kg

File Downloads

::specification::

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Frequently Asked Questions

What is the Mean Well LAD-120C designed for?

The LAD-120C is a 120W security and fire alarm power supply with a built-in battery charger and UPS function. It is intended for applications that need 41.5V output with backup power support and status monitoring features.

What output does the LAD-120C provide?

This model is rated for 41.5V output and 1.9A rated current, with a total power rating of 120W. The CH1 output voltage is also adjustable by VR within a -2% to +5% range.

Does the LAD-120C support battery backup operation?

Yes, the LAD-120C includes both a built-in battery charger and UPS function. It also supports forced UPS mode for battery maintenance and is suitable for both lead acid and lithium-ion batteries.

What battery and system status signals are available on the LAD-120C?

The unit provides TTL status signals for AC OK, battery disconnect, battery reverse polarity, battery low, battery full, and discharge. These signals make it suitable for systems that need power-status detection and monitoring.

What protection features are included in the LAD-120C?

The LAD-120C includes protection for short circuit, overload, over voltage, over temperature, battery low voltage, and battery reverse polarity. Mean Well also specifies that battery reverse polarity protection is no-damage.

Is the LAD-120C suitable for demanding operating environments?

This model is rated for operation from -20°C to +60°C, which supports use in a wide range of indoor equipment environments. It also meets listed safety and EMC standards including UL62368-1, EN62368-1, AS/NZS62368.1, and EN55032 Class B.

How compact is the Mean Well LAD-120C?

The LAD-120C uses a 1U low-profile design with a 30mm height. Its overall dimensions are 159 x 97 x 30 mm, and the unit weight is 0.42 kg.

Other LAD Series Models

19 other models
ModelPowerVoltageCurrentBattery Voltage
Mean Well LAD-120A Security/Fire Alarm PSU with Battery Charger/UPS, 120W, 13.8V 120W 13.8V 7.7A View
Mean Well LAD-600DU Security/Fire Alarm PSU with Battery Charger/UPS, 600W, 55.2V, UART Signal 600W 55.2V 7.87A View
Mean Well LAD-600D Security/Fire Alarm PSU with Battery Charger/UPS, 600W, 55.2V, TTL Signal 600W 55.2V 7.87A View
Mean Well LAD-600CU Security/Fire Alarm PSU with Battery Charger/UPS, 600W, 41.5V, UART Signal 600W 41.5V 11.45A View
Mean Well LAD-600C Security/Fire Alarm PSU with Battery Charger/UPS, 600W, 41.5V, TTL Signal 600W 41.5V 11.45A View
Mean Well LAD-600U Security/Fire Alarm PSU with Battery Charger/UPS, 600W, 27.6V, UART Signal 600W 27.6V 18.74A View
Mean Well LAD-600B Security/Fire Alarm PSU with Battery Charger/UPS, 600W, 27.6V, TTL Signal 600W 27.6V 18.74A View
Mean Well LAD-360DU Security/Fire Alarm PSU with Battery Charger/UPS, 360W, 55.2V, UART Signal 360W 55.2V 5.03A View
Mean Well LAD-360D Security/Fire Alarm PSU with Battery Charger/UPS, 360W, 55.2V, TTL Signal 360W 55.2V 5.03A View
Mean Well LAD-360CU Security/Fire Alarm PSU with Battery Charger/UPS, 360W, 41.5V, UART Signal 360W 41.5V 7.14A View
Mean Well LAD-360C Security/Fire Alarm PSU with Battery Charger/UPS, 360W, 41.5V, TTL Signal 360W 41.5V 7.14A View
Mean Well LAD-360U Security/Fire Alarm PSU with Battery Charger/UPS, 360W, 27.6V, UART Signal 360W 27.6V 11.5A View
Mean Well LAD-360B Security/Fire Alarm PSU with Battery Charger/UPS, 360W, 27.6V, TTL Signal 360W 27.6V 11.5A View
Mean Well LAD-240D Security/Fire Alarm PSU with Battery Charger/UPS, 240W, 55.2V 240W 55.2V 3.4A View
Mean Well LAD-240C Security/Fire Alarm PSU with Battery Charger/UPS, 240W, 41.5V 240W 41.5V 4.78A View
Mean Well LAD-240B Security/Fire Alarm PSU with Battery Charger/UPS, 240W, 27.6V 240W 27.6V 7.7A View
Mean Well LAD-240A Security/Fire Alarm PSU with Battery Charger/UPS, 240W, 13.8V 240W 13.8V 16.4A View
Mean Well LAD-120D Security/Fire Alarm PSU with Battery Charger/UPS, 120W, 55.2V 120W 55.2V 1.21A View
Mean Well LAD-120B Security/Fire Alarm PSU with Battery Charger/UPS, 120W, 27.6V 120W 27.6V 3.4A View
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Mean Well LAD-120C Security/Fire Alarm PSU with Battery Charger/UPS, 120W, 41.5V
Mean Well

Mean Well LAD-120C Security/Fire Alarm PSU with Battery Charger/UPS, 120W, 41.5V

The LAD is a Mean Well power converter.

Key Features

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