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Non-contact safety switches

Stricter safety regulations, and the need for tamper-proof safety at work, now make modern safety switches indispensable. Non-contact safety switches from SICK can be used for the safe monitoring of movable guards as well as for position monitoring.

The choice among three operating principles (magnetic, transponder and inductive) and different designs allow to select the solution that best fits the application requirements and is most efficient.

The product series

Product	Sensor principle	Performance level	Switch- on distance S_ao (mm)	Individual coding	Connectable to control
RE11/RE21/RE31	Magnetic	PL e ¹⁾	3 / 6	no	yes
RE13/RE23	Magnetic	PL e ¹⁾	7 / 9	no	yes
RE27	Magnetic	PL e ¹⁾	9	no	yes
RE300	Magnetic	-	5	no	yes
RE4000	Magnetic	-	5	no	no
T4000	Transponder	-	6	yes	no
T4000 Multi	Transponder	-	6	yes	no
T4000 Compact	Transponder	PL d	20	yes	yes
T4000 Direct	Transponder	PL e	18 ²⁾	yes	yes
IN4000	Inductive	-	6 / 12 / 15	no	yes
IN4000 Direct	Inductive	PL e	15	no	yes

1) In combination with suitable safety device

2) Dependent on actuator