Softstart Module

Soft Start Module for transformers

High power transformers, such as those >600VA, would have high turn-on surge. When coupled with huge capacitor banks, the turn-on surge will be very high, and may possibly damage the transformers, blow fuses, and damage the sensitive circuits connected to the system.

This is where soft start module for transformers come in - to reduce the initial turn-on inrush current to a safe level before letting the full power kicks in.

* soft starting, 3 seconds delay

* soft shutting down, 2 seconds delay 

* OMRON 16A high current relays are used 

* good for 2 x 1000VA power transformers

* fully encased power transformers

* universal input voltages, can be configured to 110-120Vac or 220-240Vac

* uses Alpha solder

* Uses 6pc of high power NTC 47D-20 thermistor

* Board size: 119mm x 80mm (2mm thickness, 70um thick copper trace)

15A version, USD$30 each (minimum purchase 2) 

* lead time 2 weeks