Datasheet

108-98015 Rev. C
All specications subject to change. Consult Tyco Electronics for latest specications. 9 of 14
Telecom-, Signal and RF Relays
Cradle Relay P V23003
AXICOM
Instructions for Impulse Operation
Cradle relay P is primarily intended for impulse operation. The maximum voltage stated in the table (page 2)
can be increased for impulse operation as follows:
U
II Impuls
= U
II tamb
. q
U
II tamb
= Maximum continuous voltage at ambient temperature t
amb
q = Factor
The impulse voltage must not exceed 80% of the test voltage (winding/frame or winding/winding) or 3.3 times at ambient
temperature = 20 °C and 2.3 times at ambient temperature < 20 °C the value of the maximum voltage listed
in the table (page 2).
Ift
ED
≤ 3 s then q =
Ift
ED
= Pulse width
t
2
= Cycle time
If tED = > 3 s the value of q must be obtained from the nomograph (cradle relay N datasheet page 103).
Examples of various periodic pulse trains (energizing side)
1. Periodic recurrence of one energizing pulse
t
ED
= t
I
+ t
II
t
I
= Pulse width of the positive pulse at the start of the winding
t
I
+ t
II
= Pulse width of the negative pulse at the start of the winding
tI + t
II
= Pulse widths within one cycle
2. Periodic recurrence of two unequal energizing pulses