| SENSITIVE DATA |
ALPISTATIC |
CONVENTIONAL |
| Presence of
electromechanical contactors |
No |
Yes |
| Wear of moving
parts |
No |
Yes |
| Contact bounce
phenomenon |
No |
Possible |
| Contact fatigue |
None |
High |
Transient excess
currents
when stages are triggered or released |
No |
Yes
(may exceed 200 ln) |
| Transient
under-voltages |
None |
Yes
(up to 100%) |
Compatibility
(PLCs, computer equipment, etc.) |
Excellent |
Average |
Compatibility
(welding machines, generators, etc.) |
Excellent |
Poor |
| Trigger and release
response time |
40 milliseconds |
approx. 30 seconds |
| Number of
operations |
Unlimited |
Limited
(electromechanical contactor) |
| Sound level during
operation |
None |
Low
(electromechanical contactor) |
| Reduced flicker |
Yes (for highly
inductive loads) |
No |
| Creation of
harmonics |
No |
No |