Data Sheet

Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
Cautions for Use of Solid State Relays
Panasonic Corporation 2020
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(1) Incandescent Lamp Load (2) Mercury Lamp Load i/i
0
≒3 times (3) Fluorescent Lamp Load
i/i
0
≒5 to 10 times
Inrush current/rated current:
i / i
0
≒10
to
15 times
(4) Motor Load i/i
0
≒5 to 10 times (5) Solenoid Load
i/i
0
≒10 to 20 times
(6) Electromagnetic
Contact Load
i/i
0
≒3 to 10 times
(7) Capacitive Load
i/i
0
≒20 to 40 times
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Approx. 1/3 second
Incandescent lamp
10 seconds
or less
10 seconds
or less
0.2 to 0.5 second
• Conditions become more harsh if plugging or
inching is performed since state transitions are
repeated.
• When using a relay to control a DC motor and
brake, the on time inrush current, steady-state
current and off time brake current differ depending
on whether the load to the motor is free or locked.
In particular, with non-polarized relays, when
using from B contact of from contact for the DC
motor brake, mechanical life might be affected by
the brake current. Therefore, please verify current
at the actual load.
Free
Lock
Load
Starting
Steady
state
Braking
0.07 to 0.1 second
Note that since inductance is great,
the arc lasts longer when power is cut.
The contact may become easily worn.
1 to 2 cycles
(1/60 to 1/30 seconds)
1/2 to 2 cycles
(1/120 to 1/30 seconds)
Contacts
(for high power factor type)
3 to 5 minutes
The discharge tube, transformer, choke coil, capacitor, etc., are combined in
common discharge lamp circuits. Note that the inrush current may be 20 to 40
times, especially if the power supply impedance is low in the high power factor type.
Load Inrush Current Wave and Time
ASCTB400E 202003
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