Safety relay

Part no.: 50133000


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Series MSI-SR-LC21DT
Application Base device for E-Stop and safety door applications
Functions Monitoring of proximity switches, Monitoring of E-Stop circuits, Monitoring of optoelectronic protective devices, Monitoring of position switches
Restart Automatic, Manual
SIL 3, IEC 61508
SILCL 3, IEC/EN 62061
Performance Level (PL) e, EN ISO 13849-1
PFHD 3E-08 per hour
Mission time 20 years, EN ISO 13849-1
Category 4, EN ISO 13849
Nominal voltage UN 24 V DC
Min. rated control supply voltage US at DC 20.4 V
Max. rated control supply voltage at DC 26.4 V
Min. rated control supply voltage at DC 20.4 V
Rated power DC 2.6 W
Galvanic isolation between supply and control circuit No
Number of outputs, safety-oriented, undelayed, contact-based 2 Piece(s)
Number of outputs, safety-oriented, delayed, contact-based 1 Piece(s)
Release current paths NO
Release current paths, time-delayed NO contact, off-delay
Contact material Ag alloy, gold-plated
Usage category AC-15 (NO contact) Ue 230V, Ie 3A
Usage category DC-13 (NO contact) Ue 24V, Ie 2A
Short circuit protection (NO contact) gG class safety fuse 6A, melting integral
Nominal switching voltage, release current paths AC 230 V
Max. thermal continuous current Ith, release current paths 6 A
Max. total current I² of all current paths 5 A²
Mechanical life time 100,000,000 switching cycles
Evaluation of the inputs Two-channel
Nominal output voltage DC 22 V
Input current at the control inputs (safety circuit/reset circuit) 25 mA
Max. peak current at the control inputs (safety circuit/reset circuit) 2,500 mA
Max. cable resistance, per channel ≤ (5 + (1.176 x UB / UN - 1) x 100) Ω
Minimum switch-on time 200 ms
Response time (automatic start tA2) 700 ms
Response time (manual start tA1) 30 ms
Test pulse time permitted tTP 1 ms
Release time tR 25 ms
Release time tR, time-delayed contacts (tolerance) 0.15 s ... 3 s ± 16 %
Sychronous time monitoring tS 500 ms
Recovery time tW 500 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 0.25 to 2.5 mm², wire with wire-end sleeve, 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 114 mm
Net weight 200 g
Housing color Gray
Type of fastening Snap-on mounting
Certifications TÜV Rheinland, c UL US
Customs tariff number 85364900
ECLASS 8.0 27371819
ECLASS 9.0 27371819
ECLASS 10.0 27371819
ECLASS 12.0 27371819
ETIM 5.0 EC001449
ETIM 6.0 EC001449
ETIM 7.0 EC001449
EPLAN macro - edz
Operating instructions - pdf
Data sheet - pdf
Product brochure - pdf
Product flyer - pdf
Declaration of Conformity - pdf
Certificate - TÜV Rheinland - pdf