Siemens SENTRON 3WA1 - Page 242

Accessories
4.3 Control and signaling accessories
3WA1 air circuit breaker
240 Equipment Manual, 02/2023, 92310000002-06
Undervoltage release (UVR/UVR-t)
Rated control supply voltage U
S
24 V DC
30 V DC
48 V DC
60 V DC
110 … 127 V AC / 110 … 125 V DC
208 … 240 V AC / 220 … 250 V DC
380 … 415 V AC
Operating limits
Operate voltage
< 70% U
S
Pick-up voltage
85 ... 110% U
S
Integrated freewheeling diode
✓
Switch-on power AC / DC
50 VA / 50 W
Continuous power AC / DC
5 VA / 5 W
Break time
U
S
= 0 with instantaneous UVR
≤ 80 ms
U
S
= 0 with short-time delayed UVR
≤ 200 ms
U
S
= 0 with delayed UVR-t
0.2 … 3.2 s
For UVR-t by disconnecting the connection at
terminals X5.13 and X5.14 (EMERGENCY STOP
circuit)
≤ 100 ms
Fuse protection of the control circuit
Smallest permissible
DIAZED fuse, gL,
slow-response
24 V DC
2 A
30 V DC
48 V DC
60 V DC
110 … 127 V AC /
110 … 125 V DC
1 A
208 … 240 V AC /
220 … 250 V DC
380 … 415 V AC
Miniature circuit
breaker with C
characteristic
24 V DC
2 A
30 V DC
48 V DC
60 V DC
110 … 127 V AC /
110 … 125 V DC
1 A
208 … 240 V AC /
220 … 250 V DC
380 … 415 V AC