Leuze 547951 Data Sheet
Part no.: 547951 – MSI-SR4B-02 – Safety relay
Technical data
Basic data
Series MSI-SR4B
Functions
Functions Automatic start/restart
Restart Automatic
Characteristic parameters
SIL 3, IEC 61508
SILCL 3, IEC/EN 62061
Performance Level (PL) e, EN ISO 13849-1
MTTF
d
PFH
D
PFH
D
PFHD, nop = 4800 0.0000000014 per hour
PFHD, nop = 28800 0.0000000045 per hour
PFHD, nop = 86400 0.000000015 per hour
Mission time T
Category 4, EN ISO 13849
STOP category 0, IEC/EN 60204-1
B10dat DC13 (inductive load) 1,000,000 number of cycles
B10dat AC15 (inductive load) 1,400,000 number of cycles
M
Cross circuit monitoring
Start/restart interlock (RES), selectable
Contactor monitoring (EDM)
Manual
73 years, EN ISO 13849-1
0.000000021 per hour
2,1E-08 per hour
20 years, EN ISO 13849-1
Electrical data
Protective circuit Fuse on switching output, upstream
Continuous current per current path, max. 3 A
Input current, max. 100 mA
External safeguarding for supply circuit 200 mA delay-action
Permissible input line resistance, max. 30 Ω
Performance data
Supply voltage 24 V, AC/DC, -20 ... 20 %
Current consumption, max. Without external load
Power consumption, max. 3 W
Outputs
Number of safety-related switching outputs (OSSDs) 3 Piece(s)
Safety-related switching outputs
Type Safety-related switching output OSSD
Voltage type AC/DC
Safety-related switching output 1
Switching element Relay, NO
Safety-related switching output 2
Switching element Relay, NO
Safety-related switching output 3
Switching element Relay, NO
eng 2018-03-31
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