MSI-SR-SM42OS-01

Safety relay

Part no.: 50133030

Icon Icon Icon
Follow-up article

Hello, we'd be happy to be of assistance to you.

We'd be happy to help you in finding a suitable alternative quickly and easily.


Please contact us via: Contact

Series MSI-SR-SM42OS
Application Zero-speed relays
Restart Automatic, Manual
SIL 3, IEC 61508
SILCL 3, IEC/EN 62061
Performance Level (PL) e, EN ISO 13849-1
PFHD 1,1E-09 per hour
Mission time 20 years, EN ISO 13849-1
Category 4, EN ISO 13849
Nominal voltage UN 24 V DC
Max. rated control supply voltage at DC 30 V
Min. rated control supply voltage at DC 16.8 V
Rated power DC 1.8 W
Galvanic isolation between supply and control circuit No
Number of outputs, signaling function, undelayed, contact-based 2 Piece(s)
Release current paths Semiconductor (PNP), safety-oriented
Signaling current paths Semiconductor (PNP), not safety-oriented
Short circuit protection (NO contact) Short-circuit proof
Nominal switching voltage, release current paths DC 30 V
Max. thermal continuous current Ith, release current paths 2 A
Max. total current I² of all current paths 4 A²
Nominal output voltage DC 24 V
Input current at the control inputs (safety circuit/reset circuit) 3 mA
Max. peak current at the control inputs (safety circuit/reset circuit) 3.8 mA
Minimum switch-on time 100 ms
Number of connections 1 Piece(s)
Function Voltage supply, Signal IN, Signal OUT
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 0.2 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 1.0 mm², wire, 2 x 0.25 to 1.0 mm², wire with wire-end sleeve
Dimension (W x H x L) 22.5 mm x 96.5 mm x 121 mm
Net weight 160 g
Housing color Gray
Type of fastening Snap-on mounting
Certifications TÜV Rheinland, c UL US
Customs tariff number 85364190
ECLASS 8.0 27371811
ECLASS 9.0 27371811
ETIM 5.0 EC001448
ETIM 6.0 EC001448
3D-CAD model - zip
EPLAN macro - edz
User's guide - pdf
Operating instructions - pdf
Data sheet - pdf
Product brochure - pdf
Product flyer - pdf
Declaration of Conformity - pdf
Certificate - TÜV Rheinland - pdf