Description

SCHMERSAL SRB 301MC 24V

SCHMERSAL SAFETY RELAY

Suitable for the signal processing of outputs with contact sensors
3 safety contacts, STOP 0
1 Signalling output
Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
Suitable for the signal processing of outputs with contact sensors

Datas	MOT cULus CCC EAC

Norms, instructions	ENIEC 62061 EN ISO 13849-1 EN IEC 60947-5-1 EN IEC 60947-5-3 ENIEC 60947-5-5 ENIEC 61508 ENIEC 60204-1 ENIEC 60947-1
The climatic compulsion	IN 60068-2-78
Material of bodies	Plastic, fiber glass reinforced thermoplastic, ventilated
Material, contacts, electrical	AgSn0, Ag-Ni, self-cleaning, positive action
Gross weight	250 g

stop category	0
Electronic fuse	Yes
broken wire detection	Yes
Short circuit definition	Yes
Start entry	Yes
feedback circuit	Yes
Automatic reset function	Yes
Earth connection detection	Yes
Integrated display, status	Yes
Number of auxiliary contacts	1
Number of LEDs	4
Number of openers	2
Number of safety contacts	3

Norms, instructions	EN IEC 60947-5-1 ENIEC 61508

Performance Level, stop 0, up to	e
Category, stop 0	4
Diagnostic Coverage (DC) Level, durdur 0	≥ 99 %
PFH value, stop 0	2,00 x 10⁻⁸ /h
Safety Integrity Level (SIL), durdur 0	3
Mission time	20 Year(s)
Common Cause Failure (CCF), minimum	65

Mechanical life, minimum	10,000,000 number of operations
Assembly	Locks onto standard DIN rail conforming to EN 60715

connector, connector	Fixed or flexible Screw connection M20 x 1.5
Terminal definitions	IEC/EN 60947-1
Cable cross-section, min.	0,25 mm²
Cable cross section, maximum	2,5 mm²
Tightening torque of terminals	0,6 Nm

Enclosure protection type	IP40
Protection type of mounting area	IP54
Protection type of terminals or connections	IP20
Ambient temperature, minimum	-25 °C
Ambient temperature, maximum	+60 °C
Storage and transport temperature, minimum	-40 °C
Storage and transport temperature, maximum	+85 °C
Vibration resistance according to EN 60068-2-6	10…55 Hz, Amplitude 0.35 mm, ± 15 %
shock resistance	30 g / 11 ms

Rated impulse withstand voltage	4 kV
Overvoltage category	III
Pollution degree according to IEC/EN 60664-1	2

Frequency range	50 Hz 60 Hz
Rated operating voltage	24 VAC -15% / +10% 24 VDC -15% / +20%, residual wave max. 10%
Rated AC voltage, 50 Hz, minimum for control options	20,4 VAC
Rated AC voltage, 50 Hz, maximum for control options	26,4 VAC
Rated AC voltage, 60 Hz, minimum for control options	20,4 VAC
Rated AC voltage, 60 Hz, maximum for control options	26,4 VAC
Rated DC voltage for control options, minimum	20,4 VDC
Rated DC voltage for control options, maximum	28,8 VDC
electrical power consumption	2 W
electrical power consumption	4,9 VA
Contact direnci, maximum	0.1 Ohm
Information (contact resistance)	in new condition
Shutdown delay in case of power failure, typical	80 ms
EMERGENCY STOP shutdown delay, typical	20 ms
Approach delay in case of autostart, typical	100 ms
approach delay at RESET, typical	20 ms