Siemens SIRIUS 3RH Series, System Manual

Page: 244 / 786

SIRIUS 3RT2 contactors/contactor assemblies
2.8 Technical data
SIRIUS Innovations
244
System Manual, 01/2011, A8E56203870002-03
Type 3RT2023 3RT2024 3RT2025 3RT2026 3RT2027 3RT2028
Size S0 S0 S0 S0 S0 S0
General data
Degree of protection to EN 60947-1,
Annex C
IP20, drive system IP40
Touch protection acc. to DIN EN 50274 Finger-safe

AC operation
g/ms 7.5/5 and 4.7/10 8.3/5 and 5.3/10 Shock resistance
rectangular pulse
 DC operation
g/ms > 10/5 and > 7.5/10
 AC operation g/ms 11.8/5 and 7.4/10 13/5 and 8.3/10 Shock resistance
sine pulse

DC operation
g/ms > 15/5 and > 10/10
Conductor cross-sections
2)
1) Contact service life for main contacts is listed in the table titled "Contact service life of auxiliary and main contacts".
2)
Conductor cross-sections are listed in the table titled "Conductor cross-sections - 3RT202.".
Table 2- 85 Short-circuit protection for 3RT202. contactors without overload relay
Type 3RT2023 3RT2024 3RT2025 3RT2026 3RT2027 3RT2028
Size S0
Short-circuit protection for contactors without overload relay
Main circuit

Fuse links gL/gG NH 3NA, DIAZED 5SB,
NEOZED 5SE acc. to
IEC 60947-4-1/DIN EN 60947-4-1
- Type of coordination "1" A 63 100 125
- Type of coordination "2" A 25 35 50
- Weld-free
1)
A 10 16 15
 Miniature circuit breaker with C
characteristic (short-circuit current
3 kA, type of coordination "1")
A 25 32 40
Auxiliary circuit
 Fuse links gL/gG DIAZED 5SB,
NEOZED 5SE (weld-free fuse
protection I
k
≥ 1 kA)
A 10
 Miniature circuit breakers with C
characteristic (short-circuit
current I
k
< 400 A)
A 10
1)
Test conditions in accordance with IEC 60947-4-1.