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  • Installation width just 22,5 mm
  • Clear terminal assignment thanks to coding pins
  • Circuit diagram directly on the housing
  • Optional cross-circuit monitoring
  • 0.1…30 s off-delay

SR4D3B01S Safety Relay Basic Module

available from stock
The safety relay monitors emergency stop switches, safety switches and AOPDs. In spite of its installation width spanning just 22,5 mm, it offers space for switching status displays and attaching an operating equipment label.
Electrical Data
Supply Voltage 20.4 ... 28.8 V DC
Supply Voltage 20.4 ... 26.4 V AC
Input wiring 1-, 2-channel
Response time (automatic start) 120 ms
Response time (monitored start) 25 ms
Fall time (emergency stop) < 20 ms
Off-Delay 0.1 ... 30 s
Temperature Range -25 ... 60 °C
Storage temperature -40 ... 85 °C
Number of Safety Outputs stop 0 2
Number of Safety Outputs stop 1 1
Switching current safety output (250 V AC) 8 A
Number of Signal Outputs 1
Switching current signal output (24 V DC 100 mA
Mechanical Data
Housing Material Plastic
Degree of Protection IP20
Connection Screw Clamp (pluggable)
Clampable Wire Cross-Section 0.2 ... 2.5 mm²
DIN-Rail mounting 35 mm
Safety-relevant Data
Performance Level (EN ISO 13849-1), Stop 0 up to Cat. 4 PL e
Performance Level (EN ISO 13849-1), Stop 1 up to Cat. 3 PL d
Mission Time TM (EN ISO 13849-1) 20 a
Safety integrity level (EN 61508) Stop 0 up to SIL 3
Safety integrity level (EN 61508) Stop 1 up to SIL 2
Stop Category (EN 60204-1) 0 / 1
B10d Switching Cycles (mechanical) 20 000 000
B10d Switching Cycles (40 % load) 7 500 000
B10d Switching Cycles (60 % load) 2 500 000
B10d Switching Cycles (80 % load) 1 000 000
B10d Switching Cycles (100 % load) 400 000
Function
Cross-circuit detection optional
Start, monitored yes
Start, automatically yes
Contactor Monitoring yes
Input signal NC yes
Input signal OSSD yes
Standards and certificates
B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf
Connection Table
B_ANS_TAB_20.pdf
Ctrl. Panel
68 = supply voltage indicator
71 = Channel 1
87 = Channel 2
89 = Internal operating voltage
90 = Delayed release channel 3
91 = Delayed release channel 4
Dimensioned Picture
Dimensions specified in mm (1 mm = 0.03937")
Complementary Products
  • Safety Relay SR4E4D01S
  • Software
Operating instructions
System solution
EU Declaration of Conformity
Product certificates
Product certificates
SR4D3B01S_DGUV_Test_Certificate.pdf SR4D3B01S_DGUV_Certificate.pdf
Product Comparison
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