Explosionproof signalling devices

Signal lamps: These devices can be operated with AC or DC voltage. A built-in current stabilisation guarantees constant brightness over the entire voltage range.

Pushbuttons: The switch contact is designed as a changeover switch; a version with separate normally closed contact and normally open contact with a 4-core connection cable is also available.

Illuminated pushbuttons: Eight LEDs (including two-coloured) provide high brightness, long service life and low power consumption; the supply is 24 V DC. Built-in reverse polarity protection.

Emergency stop buttons/impact buttons: The contact is a positive opener. If the positive opening operation is not required, the device can also be supplied with a changeover switch or with a separate opener and closer or with two separate openers.

Potentiometer: This is available with various ohmic resistances. The potentiometer’s control dial moves over a scale of 0 to 10 in a 270° range.