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LAD-120 series

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120W Economical Security/Fire Alarm PSU with Battery Charger/UPS

LAD-120 series is a 120W economical AC/DC low profile security power supply with UPS function. Adopting the input range from 90Vac to 264Vac and supports output 13.8V, 27.6V, 41.5V and 55.2Vdc. With high efficiency up to 88% and built-in AC, battery switch for easy maintenance.

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Description

LAD-120 series

120W Economical Security/Fire Alarm PSU with Battery Charger/UPS

LAD-120 series is a 120W economical AC/DC low profile security power supply with UPS function. Adopting the input range from 90Vac to 264Vac and supports output 13.8V, 27.6V, 41.5V and 55.2Vdc. With high efficiency up to 88% and built-in AC, battery switch for easy maintenance. In addition, LAD-120 series also provide TTL signals for AC OK, battery disconnect, battery reverse polarity (No damage), battery low detection, battery full and discharge, to allow easy integration into security and fire systems directly.

Features (LAD-120) :

  • Built-in battery charger and UPS function
  • TTL signals for status detection:
  • AC OK, Battery disconnect, Battery reverse polarity, Battery low, Battery full and Discharge
  • Built-in AC and battery circuit ON/OFF switchs enhance safety ness during maintenance
  • Forced UPS mode for battery maintenance
  • Protections: Short circuit / Overload / Over voltage /
  • Over temperature / Battery low voltage / Battery reverse polarity (No damage)
  • -20 ~ +60℃ wide operating temperature
  • Output voltage adjustable (-20%~+5%) for CH1 by VR
  • Suitable for lead acid and lithium-ion batteries
  • Design refer to GB17945 system requirement
  • 1U low profile (30 mm)

Applications :

  • Fire emergency and evacuation system
  • Public safety battery back-up
  • Security system
  • Uninterruptible DC-UPS system
  • Central monitoring system
  • Industrial automation

Additional information

Weight 13.6 kg
Dimensions 15.9 × 9.7 × 3.0 cm
LAD-120 Types :

LAD-120A, LAD-120AB, LAD-120C, LAD-120D

Specifications

Model LAD-120A LAD-120B LAD-120C LAD-120D
Output OUTPUT NUMBER CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2
DC VOLTAGE 13.8V 13.8V 27.6V 27.6V 41.5V 41.5V 55.2V 55.2V
RATED CURRENT 7.7A 1A (Battery charger) 3.4A 1A (Battery charger) 1.9A 1A (Battery charger) 1.21A 1A (Battery charger)
CURRENT RANGE 0 ~ 8.7A ——– 0 ~ 4.4A ——– 0 ~ 2.9A ——– 0 ~ 2.21A ——–
RATED POWER 120W 121.4W 120.35W 121.99W
RIPPLE & NOISE (max.) 120mVp-p ——– 150mVp-p ——– 240mVp-p ——– 360mVp-p ——–
VOLTAGE ADJ. RANGE CH1: 10.8 ~ 14.5V CH1: 21.6 ~ 29V CH1: 32.4 ~ 43.5V Ch1: 43.5 ~ 58V
VOLTAGE TOLERANCE ±1.0% ——– ±1.0% ——– ±1.0% ——– ±1.0% ——–
LINE REGULATION ±0.5% ——– ±0.5% ——– ±0.5% ——– ±0.5% ——–
LOAD REGULATION ±0.5% ——– ±0.5% ——– ±0.5% ——– ±0.5% ——–
SETUP, RISE TIME 500ms, 40ms/230VAC 500ms, 40ms/115VAC at full load
HOLD UP TIME (Typ.) 40ms/230VAC 9ms/115VAC at full load
Input VOLTAGE RANGE 90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE 47~63Hz
EFFICIENCY (Typ.) 86% 88% 88% 88%
AC CURRENT (Typ.) 2.5A/115VAC 1.5A/230VAC
INRUSH CURRENT (Typ.) COLD START 30A/115VAC 55A/230VAC
LEAKAGE CURRENT 0.5mA / 240VAC

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