Mechanics, connectors, relays 16.03.2020 16:41 16.03.2020 16:41

These relays are fitted e.g. in the IR-1501 Foxtrot peripheral modules.

 

Tab. 1. The parameters of the actual relay contact (each specific module can have different values!)

Nominal current

6 A at 230 VAC or 24 VDC

Maximum switching inrush current

6 A

Maximum current for cosφ = 0.4

6 A

Mechanical lifetime

Minimum 5,000,000 operations

Electrical lifetime (at 16 A, 230 VAC)

Minimum 100,000 operations

Electrical lifetime for DC13 inductive load

Minimum 100,000 operations

Electrical lifetime for AC15 inductive load

Minimum 100,000 operations

Switching time

typically 10 ms

Opening duration

typically 4 ms

Minimum recommended switching voltage, current

12 V, 500 mA

Material of the contact

AgSnO2

 

Fig. 1 The contact loading characteristics:

 

The curve of the contacts electrical lifetime.

 

 

 

 

The curve shows the electrical lifetime (the number of operations) of the contact, depending on the nature of the switching AC loads (the power, cos ).