BST Elevator Emergency Power Supply Device BY132

The BST BY132A is a power supply unit designed for elevator emergency communication systems. It provides temporary power to critical communication equipment—such as five-party intercom systems—in the event of a main power failure.

  • Input Voltage: AC 220V ± 10%
  • Output Voltage: DC 12V
  • Rated Current: 200mA
  • Internal Battery Capacity: 1.3Ah (built-in rechargeable battery)
  • Undervoltage Protection Threshold: 10V ± 0.5V
  • Maximum Ripple Voltage: 50mV
  • Operating Temperature: -10°C to +55°C

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