Description

SCHMERSAL SRB-E-204ST

SCHMERSAL SAFETY RELAY

Certificates	TÜV cULus CCC EAC

Standards	EN IEC 62061 EN ISO 13849-1 EN IEC 60947-5-1 EN IEC 60947-5-3 EN IEC 60947-5-5 EN IEC 61508 EN IEC 60204-1 EN IEC 60947-1
Climatic stress	EN 60068-2-78
Enclosure material	Glass-fibre reinforced thermoplastic, ventilated
Gross weight	150 g

Stop-Category	0
Electronic Fuse	Yes
Wire breakage detection	Yes
Cross-circuit detection	Yes
Removable Terminals	Yes
Start input	Yes
Feedback circuit	Yes
Automatic reset function	Yes
Reset edge detection	Yes
Earth connection detection	Yes
Integral system diagnostics, status	Yes
Integral system diagnostics, error code	Yes
Number of LEDs	7
Number of normally closed (NC)	8
Number of normally open (NO)	4
Number of safety digital outputs, Stop 0	2
Number of signalling outputs	4

Safety classification

Standards	EN ISO 13849-1 EN IEC 62061 EN IEC 61508

Safety classification – Fail-safe digital outputs

Performance Level, up to	e
Category	4
PFH value	2.66 x 10⁻⁹ /h
PFD value	2.42 x 10⁻⁵
Safety Integrity Level (SIL), suitable for applications in	3
Mission time	20 Year(s)

Mounting	Snaps onto standard DIN rail to EN 60715

Termination	rigid or flexible Screw connection, plug-in
Terminal designations	IEC/EN 60947-1
Cable section, minimum	0.25 mm²
Cable section, maximum	2.5 mm²
Tightening torque of Clips	0.5 Nm

Degree of protection of the enclosure	IP40
Degree of protection of the mounting space	IP54
Degree of protection of clips or terminals	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
Resistance to vibrations	10 … 55 Hz, Amplitude 0.35 mm
Restistance to shock	30 g / 11 ms