MSI-SR4B-02 Part no.: 547951
Safety relay
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Basic data
Series MSI-SR4B
Functions
Functions Automatic start/restart
Contactor monitoring (EDM)
Cross circuit monitoring
Start/restart interlock (RES), selectable
Restart Automatic
Manual
Characteristic parameters
SIL 3, IEC 61508
SILCL 3, IEC/EN 62061
Performance Level (PL) e, EN ISO 13849-1
MTTFd 73 years, EN ISO 13849-1
PFHD 2,1E-08 per hour
PFHD, nop = 4800 0.0000000014 per hour
PFHD, nop = 28800 0.0000000045 per hour
PFHD, nop = 86400 0.000000015 per hour
Mission time 20 years, EN ISO 13849-1
Category 4, EN ISO 13849
STOP category 0, IEC/EN 60204-1
B10d at DC13 (inductive load) 1,000,000 number of cycles
B10d at AC15 (inductive load) 1,400,000 number of cycles
Electrical data
Protective circuit Fuse on switching output, upstream
Switching frequency, max. 3600 switching cycles/h
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 UB 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
Time behavior
Response time 10 ms
Pickup delay, automatic start 300 ms
Pickup delay, manual start 30 ms
Regression delay 10 ms
Test pulse acceptance, max. 1 ms
Time window for signal sequence monitoring 20 ms
Connection
Number of connections 1 Piece(s)
Connection 1
Function Connection to device
Type of connection Terminal
Type of terminal Spring-cage terminal
No. of pins 16 -pin
Cable properties
Connection cross sections 0.2 to 1.5 mm²
Mechanical data
Dimension (W x H x L) 22.5 mm x 111 mm x 114.1 mm
Housing material Plastic
Plastic housing PA 66
Electrical contact material Silver alloy
Net weight 170 g
Housing color Gray
Type of fastening Snap-on mounting
Mechanical life time 10,000,000 actuation cycles
Operation and display
Type of display LED
Number of LEDs 4 Piece(s)
Environmental data
Ambient temperature, operation 0 ... 55 °C
Ambient temperature, storage -25 ... 70 °C
Certifications
Degree of protection IP 20 (terminals)
IP 40 (housing)
Protection class II
Certifications TÜV Süd
c UL US