Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s4.1
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
621
} Start circuit/feedback loop
Start circuit/feedback loop
Without feedback loop
monitoring
With feedback loop monit-
oring
Automatic start
K5
K6
K5
L1
N
K6
S12
13 (23,33)
S34
14 (24,34)
Monitored, manual start/re-
start
S12
S34
S3
K5
K6
K5
L1
K6
S12
S34
S3
N
13 (23,33)
14 (24,34)
} Semiconductor output
Unit types with U
B
24 VDC Unit types with U
B
48 - 240 VAC/DC
*Connect together the 0V connections on all
the external power supplies
Legend
} S1/S2: E-STOP/safety gate switch
} S3: Reset button
} : Switch operated
} : Gate open
} : Gate closed