Safety relay

Part no.: 549988

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Safety relay
Part no.: 547958
  • Restart: Automatic, Manual
  • Type of terminal: Screw terminal
  • Functions: Periodic function test, "Error" signal output, "Sa...
  • Contacts: 2 NO contacts / 2 NC contacts
Part no.: 547958


Available immediately

95 currently available

Series MSI-T
Functions "Error" signal output
"Safety ON" signal output
Contactor monitoring (EDM), selectable
Periodic function test
Start/restart interlock (RES), selectable
Type 2, IEC/EN 61496
SIL 3, IEC 61508
SILCL 3, IEC/EN 62061
Performance Level (PL) Up to c, EN ISO 13849-1
MTTFd 78 years, EN ISO 13849-1
PFHD 8.8E-08 per hour
Mission time 20 years, EN ISO 13849-1
Category 2, EN ISO 13849
Protective circuit Polarity reversal protection
Short circuit protected
Supply voltage UB 24 V, DC, -20 ... 20 %
Current consumption, max. 200 mA, Without external load
Residual ripple -15 ... 15 %
Fuse External with max. 3.15 A semi time-lag
Number of digital switching inputs 4 Piece(s)
Type Digital switching input
Switching voltage high, min. 18.2 V
Switching voltage low, max. 2.5 V
Switching voltage, typ. 23 V
Voltage type DC
Function Control input for contactor monitoring (EDM)
Function Control input for receiver
Function RES/Start control input
Function Control input for Reset
Function Restart interlock control input
Number of safety-related switching outputs (OSSDs) 2 Piece(s)
Number of digital switching outputs 3 Piece(s)
Type Safety-related switching output OSSD
Voltage type DC
Current load, max. 2,000 mA
Switching element Relay, NO
Switching element Relay, NO
Type Digital switching output
Switching voltage high, min. 18.2 V
Switching voltage low, max. 2.5 V
Switching voltage, typ. 23 V
Voltage type DC
Switching element Transistor, PNP
Function "Safety ON" signal output
Switching element Transistor, PNP
Function "Error" signal output
Switching element Transistor, PNP
Function Test signal output (transmitter)
Response time 20 ms
Switch-on delay 2 s
Sensor response time on test request 0.5 ... 60 ms
Number of connections 1 Piece(s)
Function Connection to device
Voltage supply
Type of connection Terminal
Type of terminal Screw terminal
No. of pins 16 -pin
Connection cross sections 1 x 0.2 to 2.5 mm², wire
1 x 0.25 to 2.5 mm², wire with wire-end sleeve
2 x 0.2 to 1.0 mm², wire
2 x 0.2 to 1.5 mm², wire
2 x 0.25 to 1.0 mm², wire with wire-end sleeve
2 x 0.5 to 1.5 mm², wire with twin wire-end sleeve
Dimension (W x H x L) 22.5 mm x 99 mm x 113.6 mm
Housing material Plastic
Plastic housing Unreinforced polyamide PA
Net weight 200 g
Housing color Gray
Type of fastening Snap-on mounting
Type of display LED
Number of LEDs 4 Piece(s)
Ambient temperature, operation -20 ... 60 °C
Ambient temperature, storage -40 ... 70 °C
Relative humidity (non-condensing) 0 ... 95 %
Degree of protection IP 40
Protection class II
Certifications c TÜV NRTL US
Customs tariff number 85371098
ECLASS 8.0 27371819
ECLASS 9.0 27371819
ETIM 5.0 EC001449
ETIM 6.0 EC001449
3D-CAD model - MSI-TR1 - zip
Operating instructions - pdf
Data sheet - pdf
Product brochure - pdf
Product flyer - pdf
Declaration of Conformity - pdf
Certificate - TÜV Rheinland - pdf
Certificate - c TÜV NRTL US - pdf