Insulation and Safety Related Specifications
ACPL-024L
Parameter
Symbol
ACPL-M21L ACPL-021L Units Conditions
Minimum External Air Gap
(Clearance)
L(101)
5
4.9
mm
mm
mm
Measured from input terminals to output
terminals, shortest distance through air.
Minimum External
Tracking (Creepage)
L(102)
CTI
5
4.8
Measured from input terminals to output
terminals, shortest distance path along body.
Minimum Internal Plastic Gap
(Internal Clearance)
0.08
0.08
Through insulation distance conductor to
conductor, usually the straight line distance
thickness between the emitter and detector.
Tracking Resistance
(Comparative Tracking Index)
175
IIIa
175
IIIa
Volts DIN IEC 112/VDE 0303 Part 1
Isolation Group
Material Group (DIN VDE 0110, 1/89, Table 1)
IEC/EN 60747-5-5 Insulation Characteristics* (Option 060)
Characteristic
ACPL-M21L/
024L/021L
Description
Symbol
Unit
Installation classification per DIN VDE 0110/39, Table 1
for rated mains voltage ≤ 150 Vrms
for rated mains voltage ≤ 300 Vrms
I – IV
I – III
I – II
for rated mains voltage ≤ 600 Vrms
for rated mains voltage ≤ 1000 Vrms
Climatic Classification
55/105/21
Pollution Degree (DIN VDE 0110/39)
Maximum Working Insulation Voltage
2
VIORM
VPR
567
Vpeak
Vpeak
Input to Output Test Voltage, Method b*
VIORM x 1.875 = VPR, 100% Production Test
with tm = 1 sec, Partial discharge < 5 pC
1063
Input to Output Test Voltage, Method a*
VIORM x 1.6 = VPR, Type and Sample Test,
tm = 10 sec, Partial discharge < 5 pC
VPR
896
Vpeak
Highest Allowable Overvoltage
(Transient Overvoltage tini = 60 sec)
VIOTM
6000
Vpeak
Safety-limiting values – maximum values allowed in
the event of a failure.
Case Temperature
TS
150
150
°C
Input Current**
IS, INPUT
PS, OUTPUT
RS
mA
mW
W
Output Power**
600
>109
Insulation Resistance at TS, VIO = 500 V
*
Refer to the optocoupler section of the Isolation and Control Components Designer’s Catalog, under Product Safety Regulations section,
(IEC/EN 60747-5-5) for a detailed description of Method a and Method b partial discharge test profiles.
** Refer to the following figure for dependence of P and I on ambient temperature.
S
S
5