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Safety Interlock Switches

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In safety switches, positively driven contacts are used for the switching elements. These switching contacts are always reliably separated. The connection is opened by the actuating force even if contacts become welded together. It is a common feature of all switching elements that at least one switching element is designed as a positively driven contact. Often two positively driven contacts are employed to increase safety using the principle of duplicated design (redundancy). This dual-channel design ensures that the failure of one channel or a fault in the control circuit can be detected and the interlocking function can still be provided with the aid of the second channel.

Euchner Type 1 safety switches have an integrated actuator and safety contacts that are closed when the actuator is not activated. Type 2 safety switches use a separate actuator and have safety contacts that are closed when the actuator is inserted into the switch. Type 2 interlock safety switches are also available with solenoid locking/unlocking capability.
Electro-mechanical switches video

 
 

Type 1 switches with integrated actuator

Features an integrated actuator to protect personnel and equipment by monitoring the position of movable components. Actuator movement opens positively driven safety contacts.



NZ Design Type 1 Safety Limit SwitchesNM Safety Limit Switches: plastic, 2 narrow body designs, up to 3 contacts, 6 different actuator heads.


NZ Design Type 1 Safety Limit SwitchesNZ Safety Limit Switches: die cast aluminum, up to 4 contacts and 10 different actuator heads.


EGZ Safety SwitchEGZ Safety Switches: stainless steel housing with up to 3 safety contacts.


ESH Safety Hinge SwitchESH-PRO Safety Hinge Switches: die-cast zinc for heavy loads, with 3 Amp contacts.


ESH-ARO Safety Hinge SwitchESH-ARO Safety Hinge Switches: die-cast zinc housing with readjustable operating point.


TK Locking Safety SwitchesTK Locking Pin Safety Switches: Plastic body solenoid locking metal actuating pin with contacts.
   

Locking Type 2 switches with separate actuator

Features an actuator that separates from the interlock switch body. Inserting the actuator into the switch head closes the safety contacts. Note: Actuators sold separately. Solenoid can hold or release the actuator/guard until elimination of stored energy hazards has occurred.



STF Design Type 2 Safety Switches NZ..VZ..VS Safety Interlock Switches: die cast aluminum, with up to 4 contacts, side actuator entry with 30 mm mounting.


STF Design Type 2 Safety SwitchesSTA Safety Interlock Switches: Narrow metal housing, solenoid locking, and 4 contacts.


STF Design Type 2 Safety SwitchesSTM Safety Interlock Switch: plastic body with plastic or metal actuator head, solenoid locking, 3 contacts, 21 and 22 mm mounting.


STF Design Type 2 Safety SwitchesSTP Safety Interlock Switches: plastic body with metal actuator head, solenoid locking, 4 contacts and 30 mm mounting.


STF Design Type 2 Safety SwitchesSTP TWIN Safety Interlock Switches: 2 metal heads plastic housing solenoid locking switch with up to 4 contacts


STF Design Type 2 Safety SwitchesTP Safety Interlock Switches: plastic, solenoid locking, up to 4 contacts, top & side actuator entry and 30 mm mounting.


TQ Design Type 2 Safety SwitchesTQ Safety Interlock Switch: small solenoid locking safety switch with flat pack style and integrated cable


STF Design Type 2 Safety SwitchesTX Safety Interlock Switch : die cast aluminum, solenoid locking, up to 4 contacts, side actuator entry with 30 mm mounting.


STF Design Type 2 Safety SwitchesTZ Safety Interlock Switch: die cast aluminum, solenoid locking, up to 8 contacts, side actuator entry with 100 mm mounting.
   

Non-locking Type 2 switches with separate actuator

Features an actuator that separates from the interlock switch body. Inserting the actuator into the switch head closes the safety contacts. Note: Actuators sold separately.



NX Series Type 2 Safety SwitchGP Safety Interlock Switches: plastic, up to 4 contacts, top & side actuator entry and 30 mm mounting.


NX Series Type 2 Safety SwitchNM VZA Safety Interlock Switch: plastic, 2 narrow body designs, up to 3 contacts, top & side actuator entry, 16.5 and 18 mm mounting.


NX Series Type 2 Safety SwitchNP Safety Interlock Switches: plastic, up to 2 contacts, top & side actuator entry and 20, 22 and 40 mm mounting.


NQ Series Type 2 Safety SwitchNQ Safety Interlock Switches: offers a flat pack style plastic housing with integrated cable


NX Series Type 2 Safety SwitchNX Safety Interlock Switch : die cast aluminum, with 4 contacts, top and side actuator entry with 30 mm mounting.


NX Series Type 2 Safety SwitchNZ Safety Interlock Switch : die cast aluminum, with 4 contacts, top and side actuator entry with 30 mm mounting.


SGP Series Type 2 Safety SwitchSGP Safety Interlock Switches: die cast aluminum actuating head, plastic body switch, with 4 contacts, top and side actuator entry with 30 mm mounting.


SGA Series Type 2 Safety SwitchSGA Safety Interlock Switches: die cast aluminum housing, with 4 contacts, top and side actuator entry with 30 mm mounting.


NX Series Type 2 Safety SwitchSGP Twin Safety Interlock Switch : 2 metal heads plastic switch, up to 4 contacts with top and side actuating.
 
 


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