HAY-PSU1612-20A 16 way 12V boxed PSU 20AMP PTC fuses, surge protected, 1.6A O/P. When traditional fuses are being used for overcurrent protection it can only protect once then it must be replaced. The PTC resettable fuse is a new-type of overcurrent protection element which has two functions providing overcurrent protection and automatic reset.
Input Voltage: 187 – 253V Rated 3amp main fuse
Outputs: 16 x 12VDC Outputs
Maximum Output: 20 Amps
Dimensions: 9 x 21 x 24.5 cm
Weight: 3.2 Kgs
Storage Temperature: – 20 to 85C ; Operating Temperature: -10 to 50C ; Operating Relative Humidity: 0-90%
Case: White Powder Coated Steel Enclosure with PG9 Cable Gland & Knockouts for Conduit Entry
The overcurrent protection PTC elements serially connected to the circuit. Under normal circumstances it provides a low resistance state and can ensure the normal working of the circuit. If a short circuit or unusually high current occurs, the PTC fuses cut in to reduce the voltage down to a trickle thus preventing damage and protecting the equipment.
The PTC fuse automatically resets once the fault in overcurrents removed. The PTC elements will automatically return to its low resistance state. It avoids maintenance or replacement but also avoids a continuously circulating switching state which can cause circuit damage.