Submittal Sheet

Arrangement of electrical connectors for main current
circuit
Top and bottom
Type of connectable conductor cross-sections
● for main contacts
— single or multi-stranded
2x (1 ... 2,5 mm²), 2x (2,5 ... 10 mm²)
— finely stranded with core end processing
2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
● at AWG conductors for main contacts
2x (16 ... 12), 2x (14 ... 8)
Tightening torque
● for main contacts with screw-type terminals
2...2.5N·m
Design of screwdriver shaft Diameter 5 to 6 mm
Size of the screwdriver tip Pozidriv 2
Design of the thread of the connection screw
● for main contacts
M4
Safety related data
B10 value
● with high demand rate acc. to SN 31920
5000
Proportion of dangerous failures
● with low demand rate acc. to SN 31920
50%
● with high demand rate acc. to SN 31920
50%
Failure rate [FIT]
● with low demand rate acc. to SN 31920
50FIT
T1 value for proof test interval or service life acc. to
IEC 61508
10y
Display version
● for switching status
Handle
Certificates/approvals
3RV2021-1EA10 Subject to change without notice
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11/27/2017 © Copyright Siemens