Datasheet

SHORT CIRCUIT AND OVERLOAD PROTECTION FOR ALL DEVICES
IEC standard 60947-4-1 make a distinction between two different types of protection, (called “coordination”), which are designated types “1” and "2".
Any short-circuit that occurs is cleared safely by either type of coordination.
The only difference between the 2 categories concerns the extent of the SSR damage caused by the short-circuit.
Type "1" coordination requires that in the event of a sho
rt-circuit, the Solid State Contactor does not endanger personnel or installations,
but permanent damage to the SSC is permissible. In this case the SSC may need to be replaced. For this type of co-ordination,
the use of fusing or circuit breakers adequate to protect the system and wiring from short circuits, (but not specifically considering SSC protection), can be used.
Type "2" coordination re
quires that under a short-circuit condition, the circuit is interrupted, the SSC does not endanger persons or installations,
and in addition the SSR will be able to operate after the fault condition is repaired.
Type of coordination 1
Protection by Thermal Magnetic Circuit Breaker or by Fuse
Nominal Motor
Current
Class gG fuses
(example from Littlefuse)
Solid State Contactor
2 controlled legs
Solid State Contactor
3 controlled legs
0.40-0.63 A CY14X51G16 DRH3P60x20 DRH3P60x18
0.63-1 A CY14X51G16 DRH3P60x20 DRH3P60x18
1-1.6 A CY14X51G25 DRH3P60x20 DRH3P60x18
1.6-2.5 A CY14X51G25 DRH3P60x20 DRH3P60x18
2.5-4 A CY14X51G25 DRH3P60x20 DRH3P60x18
4-6.3 A CY14X51G40 DRH3P60x20 DRH3P60x18
DRH3P60x18 (up to 7.6A)6.3-10 A CY14X51G40 DRH3P60x20 (up to 7.6A)
GV2ME04 / GV2P04
GV2ME05 / GV2P05
GV2ME06 / GV2P06
GV2ME07 / GV2P07
GV2ME08 / GV2P08
GV2ME
10 / GV2P10
GV2ME14 / GV2P14
Thermal Magnetic Circuit Breaker
(Schneider Electric)
Type of coordination 2
0.15-20 A
CY14X51G25 DRH3P60x20 DRH3P60x18 (up to 18A)
Nominal
Current
Class gG fuses
(example from Littlefuse)
Solid State Contactor
2 controlled legs
Solid State Contactor
3 controlled legs
Protection by Thermal Magnetic Circuit Breaker or by Fuse
Protection by Fuse
Nominal
Current
Semiconductor fuses with less than 2330 A
2
s
Littlefuse
Solid State Contactor
2 controlled legs
Solid State Contactor
3 controlled legs
0.15-20 A LA50QS35-4 DRH3P60x20 DRH3P60x18 (up to 18A) 50 058 06.32 Z093908
Ferraz (Cylindric)SIBA1 (Cylindric)
Protection by Fuse
Nominal Motor
Current
Semiconductor fuses with less than 2330 A
2
s
Littlefuse
Solid State Contactor
2 controlled legs
Solid State Contactor
3 controlled legs
0.15-7.6 A LA50QS40-4 DRH3P60x20 DRH3P60x1850 058 06.40 A093909
Ferraz (Cylindric)SIBA1 (Cylindric)
For resistive loads:
For motor loads:
For resistive loads:
For motor loads:
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Datasheet
DIN Rail Mount
(10)
(10)
(10)
(10)