IDEM
The KLT-SS Series Guard Locking switch is a tongue type safety interlock switch incorporating traditional mechanical anti-tamper tongue technology utilising IDEM Safety Switched patented cam system.
They interlock and hold closed guard doors to protect operators from moving or hazardous machinery. They are particularly suited to where a high degree of anti-tamper technology is required to prevent accidental or deliberate atttempts to by-pass the interlock.
The KLT-SS Solenoid Locking Switch has a mirror polished Stainless Steel 316 body design and have been developed with a maximum holding force of 2000N to keep medium to large guard doors closed until hazards have been removed.
IP69K enclosure protection is maintained by a double seal lid gasket design and metal fixings.
The KLT-SS has a low profile and fixing holes are on an industry standard 73mm centre to enable easy retrofitting to new or existing guards (or where extra anti-tamper is required).
The head has been designed to allow rotation to provide up to 4 actuator entry positions.

| Actuator | Not included | 
|---|---|
| Annual usage | 8 cycles per hour/24 hours per day/365 days | 
| Approvals | ISO 13849-1, ISO 14119, EN60204-1, EN62061, EN60947-5-1, UL 508 | 
| Central Material | Stainless steel 316 | 
| Conduit entry | M20 | 
| Contact Type | 4NC safety contacts, 1NO auxiliary contact (guard open), 1NO auxiliary contact (guard locked) (selectable option for LED2 guard locked) | 
| Contacts | 4NO 2NC | 
| Head material | Stainless steel 316 | 
| Holding force (F1Max) | 3000 | 
| IP Class | IP69K | 
| LED Display | LED1 red solenoid power on, LED2 green switch locked (if selected) | 
| Manual Operation | Manual release lid only | 
| Maximum approach / withdrawal speed | 600 | 
| Mechanical reliability B10d | 2.5 x 10⁶ operations at 100mA load | 
| Mounting | 2 x M5 | 
|---|---|
| MTTFd | 356 years | 
| Operating temperature | -25..40°C | 
| PFHd | 3.44 x 10⁻⁸ | 
| PL | e acc. ISO13849-1 | 
| Rated insulation voltage | 600V ac | 
| SIL | 3 acc. EN62061 | 
| Solenoid Voltage | 24V ac/dc | 
| Thermal current (lth) | 5 | 
| Travel for positive opening | 10 | 
| Utilisation category | AC15, A300, 3 A | 
| Withstand voltage | 2500V ac | 
The KLT-SS Series Guard Locking switch is a tongue type safety interlock switch incorporating traditional mechanical anti-tamper tongue technology utilising IDEM Safety Switched patented cam system.
They interlock and hold closed guard doors to protect operators from moving or hazardous machinery. They are particularly suited to where a high degree of anti-tamper technology is required to prevent accidental or deliberate atttempts to by-pass the interlock.
The KLT-SS Solenoid Locking Switch has a mirror polished Stainless Steel 316 body design and have been developed with a maximum holding force of 2000N to keep medium to large guard doors closed until hazards have been removed.
IP69K enclosure protection is maintained by a double seal lid gasket design and metal fixings.
The KLT-SS has a low profile and fixing holes are on an industry standard 73mm centre to enable easy retrofitting to new or existing guards (or where extra anti-tamper is required).
The head has been designed to allow rotation to provide up to 4 actuator entry positions.

              
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              We’re excited to share some great news at Demesne Electrical. Wayne Moody has joined our team, bringing with him years of experience and a clear vision for the future. His focus will be on building on our strong reputation here in Ireland and driving our growth across Europe.
              The PMX fuse holder range is compact, halogen-free, and manufactured in Europe for fast availability. Available in 10×38, 14×51, and 22×58 sizes with IEC, UL, and CSA approvals, they feature silver-plated contacts, IP20 touch-safe design, and optional blown fuse indicators — giving panel builders reliable, safe, and flexible protection.
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| My favourites | Articles | Actuator | Conduit entry | Solenoid Voltage | Price | |
|---|---|---|---|---|---|---|
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        KLT-SS (Mechanical Only) M20 24v
      
      
       
  
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            451001
          
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            M20 
            
            
           
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            24V ac/dc 
            
            
           
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        KLT-SS (Mechanical Only) M20 24v - Flat Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) M20 24v - HF Actuator
      
      
       
  
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            451001HF
          
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        KLT-SS (Mechanical Only) M20 24v - HFH Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) ½”NPT 24v
      
      
       
  
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            1/2" NPT 
            
            
           
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        KLT-SS (Mechanical Only) ½”NPT 24v - Std Actuator
      
      
       
  
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            451002A
          
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        KLT-SS (Mechanical Only) ½”NPT 24v - Flat Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) ½”NPT 24v - HF Actuator
      
      
       
  
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            451002HF
          
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            Heavy duty flexible 
            
            
           
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            1/2" NPT 
            
            
           
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        KLT-SS (Mechanical Only) ½”NPT 24v - HFH Actuator
      
      
       
  
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            451002HFH
          
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            Heavy duty s/steel 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 24v
      
      
       
  
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            451003
          
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            M23 12 Pole 
            
            
           
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            24V ac/dc 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 24v - Std Actuator
      
      
       
  
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            451003A
          
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        KLT-SS (Mechanical Only) QC M23 24v - Flat Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) QC M23 24v - HF Actuator
      
      
       
  
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            451003HF
          
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        KLT-SS (Mechanical Only) QC M23 24v - HFH Actuator
      
      
       
  
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            451003HFH
          
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        KLT-SS (Mechanical Only) M20 110v
      
      
       
  
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            451004
          
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            M20 
            
            
           
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        KLT-SS (Mechanical Only) M20 110v - Std Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) M20 110v - Flat Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) M20 110v - HF Actuator
      
      
       
  
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            451004HF
          
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            Heavy duty flexible 
            
            
           
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            M20 
            
            
           
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        KLT-SS (Mechanical Only) M20 110v - HFH Actuator
      
      
       
  
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            451004HFH
          
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            Heavy duty s/steel 
            
            
           
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            M20 
            
            
           
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            110V ac 
            
            
           
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        KLT-SS (Mechanical Only) ½”NPT 110v
      
      
       
  
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            451005
          
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            1/2" NPT 
            
            
           
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            110V ac 
            
            
           
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        KLT-SS (Mechanical Only) ½”NPT 110v - Std Actuator
      
      
       
  
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            451005A
          
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        KLT-SS (Mechanical Only) ½”NPT 110v - Flat Actuator
      
      
       
  
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            451005F
          
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        KLT-SS (Mechanical Only) ½”NPT 110v - HF Actuator
      
      
       
  
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            451005HF
          
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        KLT-SS (Mechanical Only) ½”NPT 110v - HFH Actuator
      
      
       
  
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            451005HFH
          
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        KLT-SS (Mechanical Only) QC M23 110v
      
      
       
  
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            451006
          
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            M23 12 Pole 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 110v - Std Actuator
      
      
       
  
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            451006A
          
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        KLT-SS (Mechanical Only) QC M23 110v - Flat Actuator
      
      
       
  
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            451006F
          
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        KLT-SS (Mechanical Only) QC M23 110v - HF Actuator
      
      
       
  
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            451006HF
          
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            M23 12 Pole 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 110v - HFH Actuator
      
      
       
  
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            451006HFH
          
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            M23 12 Pole 
            
            
           
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        KLT-SS (Mechanical Only) M20 230v
      
      
       
  
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            451007
          
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            M20 
            
            
           
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            230V ac 
            
            
           
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        KLT-SS (Mechanical Only) M20 230v - Std Actuator
      
      
       
  
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            451007A
          
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        KLT-SS (Mechanical Only) M20 230v - Flat Actuator
      
      
       
  
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            451007F
          
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        KLT-SS (Mechanical Only) M20 230v - HF Actuator
      
      
       
  
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            451007HF
          
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        KLT-SS (Mechanical Only) M20 230v - HFH Actuator
      
      
       
  
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            451007HFH
          
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        KLT-SS (Mechanical Only) ½”NPT 230v
      
      
       
  
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            451008
          
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        KLT-SS (Mechanical Only) ½”NPT 230v - Std Actuator
      
      
       
  
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        KLT-SS (Mechanical Only) ½”NPT 230v - Flat Actuator
      
      
       
  
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            Flat 
            
            
           
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        KLT-SS (Mechanical Only) ½”NPT 230v - HF Actuator
      
      
       
  
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            451008HF
          
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        KLT-SS (Mechanical Only) ½”NPT 230v - HFH Actuator
      
      
       
  
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            451008HFH
          
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        KLT-SS (Mechanical Only) QC M23 230v
      
      
       
  
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            451009
          
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            M23 12 Pole 
            
            
           
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            230V ac 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 230v - Std Actuator
      
      
       
  
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            451009A
          
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        KLT-SS (Mechanical Only) QC M23 230v - Flat Actuator
      
      
       
  
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            451009F
          
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            Flat 
            
            
           
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            M23 12 Pole 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 230v - HF Actuator
      
      
       
  
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            451009HF
          
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            Heavy duty flexible 
            
            
           
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            M23 12 Pole 
            
            
           
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            230V ac 
            
            
           
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        KLT-SS (Mechanical Only) QC M23 230v - HFH Actuator
      
      
       
  
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            451009HFH
          
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            M23 12 Pole 
            
            
           
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Select a variant in the list