Innovations

Emergency Cable Pull Switches
There are many machines and plants where an emergency stop command must be available over a great span of distance. Schmersalís ZQ700 and ZQ900 Emergency Cable Pull Switches can provide that E-Stop protection.

On smaller machinery and in confined areas, the compact model ZQ 700 can be used. It can provide E-Stop protection for up to 10 meters (32 feet) and is available with 2 contacts (1NO/1NC or 2NC).

Our more robust version is the ZQ 900. Using one spring force it provides E-stop protection for a cable span up to 50 meters (165 feet). For circuit flexibility it is available with either 2 contacts (1NO/1NC or 2NC) or 4 contacts (2NO/2NC, 1NO/3NC, or 4NC). This version includes a position indicator window for ease of installation, and since it has 3 conduit openings it can be fitted with an indicator light. It is also available with an optional e-stop button integrated on the switch housing.

Both Emergency Cable Pull switches have an integrated reset button because a latching mechanism maintains the emergency stop position when the cable is pulled and the switch is actuated. The switches will also fail-safe - the cable being cut or going slack will also result in actuation and machine stoppage.

These switches feature corrosion resistant housings that re dust- and water-tight (IP67 Rated), suitable for harsh environments. They meet emergency stop standards EN ISO 13850 and IEC 60947-5-5.

For ease of installation of the cable assembly, Schmersal also designed a unique tensioning device, the S900.

For more information on these products, consult our online product catalog (links below) or contact:

Schmersal USA
660 White Plains Road, Suite 160
Tarrytown, NY 10591
Phone: 888-496-5143
Fax: 914-347-1567

 Innovations

10/7/2014 
 Field Customizable Universal BDF200 more
10/6/2014 
 Compact RFID based electronic safety sensor with multiple actuator styles more
7/24/2014 
 New multifunctional safety light curtain offers muting, cyclic operation and multi-scan. more
6/21/2013 
 More than just a solenoid interlock: AZM300 more
6/12/2012 
 Safety sensor designed for the food and beverage industry more
11/28/2011 
 RFID technology in a safety sensor more
3/4/2011 
 Modular E-Stop & Pushbutton Control Stations more
3/1/2011 
 Real World Light Curtains Demand Real Strength more
11/5/2010 
 IP69K Rated Products more
4/18/2010 
 Emergency Cable Pull Switches more
2/17/2010 
 Safety Pressure Mats more
2/15/2010 
 Innovative Safety Light Curtains more
10/6/2009 
 Extension of the safety controller program more
8/23/2008 
 We've got a handle on solenoid interlocks more
6/12/2006 
 Magnetic Interlock MZM100 more