Siemens SENTRON 3VA27 - Page 96

Note
The undervoltage release has a thermal memory.
The undervoltage release is protected against overheating as a result of excessively frequent
activation.
The undervoltage release switches o󹪜 temporarily after excessively frequent activation. The
undervoltage release resumes normal operation after an appropriate cooling period. The
protective circuit is set to zero if the undervoltage release is switched o󹪜 or constantly activated
for 󹪝ve minutes or more.
Suitable for continuous operation: 100% ON time
Technical speci󹪝cations AC DC Fuse determined from
characteristic curves
1)
Rated control supply
voltage U
s
24 V ✓ ✓ DIAZED fuse (operation‐
al class gL/gG) 10A TDz
(slow)
30 V ✓ ✓
48 V ✓ ✓
60 V ✓ ✓
110 to 120 V ✓ ✓ DIAZED fuse (operation‐
al class gL/gG) 4A TDz
(slow)
120 to 127 V ✓ ✓
220 to 240 V ✓ ✓ DIAZED fuse (operation‐
al class gL/gG) 2A TDz
(slow)
240 to 250 V ✓ ✓
380 to 400 V ✓ —
415 to 440 V ✓ —
Operating limits UVR: ON: 85 to 110% U
s
UVR: OFF: ...< 70% U
s

Switch-on power 300 VA 300 W
Continuous power 3.5 VA 3.5 W
Break time UVR 30 ms
1)
Miniature C-characteristic circuit breakers in accordance with VDE0641 with the same current rating
may be used as an alternative to fuses.
Closing coil (CC) / shunt trip (ST)
With the auxiliary solenoids (CC and ST), the circuit breaker can be closed (CC) and opened (ST)
remotely by electrical signals connected at the auxiliary conductor terminal system or via
communication.
Closing (breaker position CLOSED) is only possible if the closing springs are charged and the
circuit breaker is ready for closing. Opening (breaker position OPEN) is always possible.
Accessories
3.2Electromechanical accessories
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 95