IAI Rec, Instruction Manual

Page: 35 / 158

Chapter 1 System Configuration and Specifications
1.5 Specifications
ME0394-1A
1-9
(Reference) Selection of Circuit Breaker for Power Supply Protection
It is recommended that protection of the power supply is performed on the primary side (AC
power source side) in the 24V DC power supply unit.
Be mindful of the in-rush current of the 24V DC power supply unit and the rated interrupting
current of the circuit breaker when select.
Rated Interrupting Current > Short-Circuit Current = Primary Side Current Amperage ÷ Power Supply Voltage
[In-Rush Current of IAI Power Supply Unit PSA-24]
Item Conditions Specifications
In-Rush Current
At Cold Start (25°C)
100V AC 17A (typ)
200V AC 34A (typ)
At Cold Start (40°C)
100V AC 27.4A (typ)
200V AC 54.8A (typ)
The pulse width that the in-rush current flows in is 5ms or less. Also, in parallel operation, the in-
rush current is added for number of units. Confirm the characteristics when select so the
breaker would not work at the in-rush current.