20
EN
ISOM K-20 - 551805A - SOCOMEC
9. SPECIFICATIONS
9.1.
ISOM K-20 specifications
9.1.1. Mechanical characteristics
Casing type
Modular for DIN rail and board mount
Enclosure size DIN 96x96
Casing protection index
IP20
Front panel protection index /
shockproof
IP40 on the nose in modular assembly / IK08
Material and flammability class of housing
Polycarbonate UL94-V0
Weight
400 g
9.1.2.
Electrical specifications
ISOM K-20
Power supply K-20 AC
AC 110-230 V 50-60 Hz / DC 120-240 V
(AC preset protection: Fuses 1A gG)
(DC preset protection: Fuses T1AH300VAC)
Power supply K-20 DC
24 VDC
(Preset protection: Fuses T1AH300VDC)
(The 24 VDC auxiliary power supply must be galvanically separated
from the monitored network)
MONITORED IT NETWORK
AC or combined AC/DC
K-20: ≤ 480 VAC connection L1/L2 on phases
+/- 10%
Rated shock voltage 6 kV (IEC 60364-4-44)
CAT III
AC frequency
DC, 50 to 460 Hz
Power consumption
10 VA (K-20 AC)
1.9 VA (K-20 DC)
Operating range of the voltage network
+/- 10%
Rated shock voltage
6 kV (IEC60364-4-44)
9.1.3. Measurement characteristics
MEASUREMENT ACCURACY
Accuracy
K-20: in accordance with IEC 61557-8
ISOM PERFORMANCE
Specific response value R
an
K-20:
ALARM 1: 1 K
Ω - 1 MΩ
ALARM 2: 1 K
Ω - 1 MΩ
Max. leakage capacity Ce
K-20: 30 µF
Specific response value uncertainty
+/- 10% according to profile
Response time t
an
For R
F
= 0.5 x Ran and C
e
= 1 µF: typically 4s
Measurement voltage Um
75 V depending on profile
Measurement current Im
Max 1 mA
Max. external DC voltage Ufg
510 V
Measurement range Ce
K-20: 0 - 30 µF