Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

KL1-SS Guard Locking Safety Switch
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KL1-SS Guard Locking Safety Switch

The KL1-SS guard locking safety interlock features a compact 316 stainless steel body, making it well suited for demanding industrial environments where strength, durability, and corrosion resistance are important. With a holding force of up to 2000N, the KL1-SS is designed to help keep medium to large guard doors securely closed until hazardous movement has stopped or access is safe. Its robust construction makes it ideal for applications where reliable guard locking is required, while the compact design allows it to be fitted to machinery where space may be limited.



    

  • 316 grade stainless steel body for strength, durability, and corrosion resistance
    • 

  • Holding force up to F1Max 2000N / 200kg
    • 

  • Rotating head allows 4 actuator entry positions for flexible installation
    • 

  • IP69K rated protection for demanding washdown environments
    • 

  • Supplied with 1 x M20 or ½” NPT conduit entry (quick connect available)
    • 



				

			

			

				
				
				
				
			

				

				
				
				
				
				

				
				
				
				
				
				

					

				
				
				
				
				



Part Number
Part Description
Voltage
Conduit Type
Actuator






220001
KL1-SS M20 24v LED only
24v
M20
No Actuator




220301
KL1-SS M20 24v LED2 (lock status)
24v
M20
No Actuator




220001A
KL1-SS M20 24v LED only – std actuator
24v
M20
A – Standard Actuator




220301A
KL1-SS M20 24v LED2 (lock status) – std actuator
24v
M20
A – Standard Actuator




220001F
KL1-SS M20 24v LED only – flat actuator
24v
M20
F – Flat Actuator




220301F
KL1-SS M20 24v LED2 (lock status) – flat actuator
24v
M20
F – Flat Actuator




220001HF
KL1-SS M20 24v LED only – HF actuator
24v
M20
HF – Metal Flexible Actuator




220301HF
KL1-SS M20 24v LED2 (lock status) – HF actuator
24v
M20
HF – Metal Flexible Actuator




220001HFH
KL1-SS M20 24v LED only – HFH actuator
24v
M20
HFH – Stainless Steel Flexible Actuator




220301HFH
KL1-SS M20 24v LED2 (lock status) – HFH actuator
24v
M20
HFH – Stainless Steel Flexible Actuator




220002
KL1-SS ½NPT 24v LED only
24v
½NPT
No Actuator




220302
KL1-SS ½NPT 24v LED2 (lock status)
24v
½NPT
No Actuator




220002A
KL1-SS ½NPT 24v LED only – std actuator
24v
½NPT
A – Standard Actuator




220302A
KL1-SS ½NPT 24v LED2 (lock status) – std actuator
24v
½NPT
A – Standard Actuator




220002F
KL1-SS ½NPT 24v LED only – flat actuator
24v
½NPT
F – Flat Actuator




220302F
KL1-SS ½NPT 24v LED2 (lock status) – flat actuator
24v
½NPT
F – Flat Actuator




220002HF
KL1-SS ½NPT 24v LED only – HF actuator
24v
½NPT
HF – Metal Flexible Actuator




220302HF
KL1-SS ½NPT 24v LED2 (lock status) – HF actuator
24v
½NPT
HF – Metal Flexible Actuator




220002HFH
KL1-SS ½NPT 24v LED only – HFH actuator
24v
½NPT
HFH – Stainless Steel Flexible Actuator




220302HFH
KL1-SS ½NPT 24v LED2 (lock status) – HFH actuator
24v
½NPT
HFH – Stainless Steel Flexible Actuator




220004
KL1-SS M20 110v LED only
110v
M20
No Actuator




220304
KL1-SS M20 110v LED2 (lock status)
110v
M20
No Actuator




220004A
KL1-SS M20 110v LED only – std actuator
110v
M20
A – Standard Actuator




220304A
KL1-SS M20 110v LED2 (lock status) – std actuator
110v
M20
A – Standard Actuator




220004F
KL1-SS M20 110v LED only – flat actuator
110v
M20
F – Flat Actuator




220304F
KL1-SS M20 110v LED2 (lock status) – flat actuator
110v
M20
F – Flat Actuator




220004HF
KL1-SS M20 110v LED only – HF actuator
110v
M20
HF – Metal Flexible Actuator




220304HF
KL1-SS M20 110v LED2 (lock status) – HF actuator
110v
M20
HF – Metal Flexible Actuator




220004HFH
KL1-SS M20 110v LED only – HFH actuator
110v
M20
HFH – Stainless Steel Flexible Actuator




220304HFH
KL1-SS M20 110v LED2 (lock status) – HFH actuator
110v
M20
HFH – Stainless Steel Flexible Actuator




220005
KL1-SS ½NPT 110v LED only
110v
½NPT
No Actuator




220305
KL1-SS ½NPT 110v LED2 (lock status)
110v
½NPT
No Actuator




220005A
KL1-SS ½NPT 110v LED only – std actuator
110v
½NPT
A – Standard Actuator




220305A
KL1-SS ½NPT 110v LED2 (lock status) – std actuator
110v
½NPT
A – Standard Actuator




220005F
KL1-SS ½NPT 110v LED only – flat actuator
110v
½NPT
F – Flat Actuator




220305F
KL1-SS ½NPT 110v LED2 (lock status) – flat actuator
110v
½NPT
F – Flat Actuator




220005HF
KL1-SS ½NPT 110v LED only – HF actuator
110v
½NPT
HF – Metal Flexible Actuator




220305HF
KL1-SS ½NPT 110v LED2 (lock status) – HF actuator
110v
½NPT
HF – Metal Flexible Actuator




220005HFH
KL1-SS ½NPT 110v LED only – HFH actuator
110v
½NPT
HFH – Stainless Steel Flexible Actuator




220305HFH
KL1-SS ½NPT 110v LED2 (lock status) – HFH actuator
110v
½NPT
HFH – Stainless Steel Flexible Actuator




220007
KL1-SS M20 230v LED only
230v
M20
No Actuator




220307
KL1-SS M20 230v LED2 (lock status)
230v
M20
No Actuator




220007A
KL1-SS M20 230v LED only – std actuator
230v
M20
A – Standard Actuator




220307A
KL1-SS M20 230v LED2 (lock status) – std actuator
230v
M20
A – Standard Actuator




220007F
KL1-SS M20 230v LED only – flat actuator
230v
M20
F – Flat Actuator




220307F
KL1-SS M20 230v LED2 (lock status) – flat actuator
230v
M20
F – Flat Actuator




220007HF
KL1-SS M20 230v LED only – HF actuator
230v
M20
HF – Metal Flexible Actuator




220307HF
KL1-SS M20 230v LED2 (lock status) – HF actuator
230v
M20
HF – Metal Flexible Actuator




220007HFH
KL1-SS M20 230v LED only – HFH actuator
230v
M20
HFH – Stainless Steel Flexible Actuator




220307HFH
KL1-SS M20 230v (lock status) LED2 – HFH actuator
230v
M20
HFH – Stainless Steel Flexible Actuator




220008
KL1-SS ½NPT 230v LED only
230v
½NPT
No Actuator




220308
KL1-SS ½NPT 230v LED2 (lock status)
230v
½NPT
No Actuator




220008A
KL1-SS ½NPT 230v LED only – std actuator
230v
½NPT
A – Standard Actuator




220308A
KL1-SS ½NPT 230v LED2 (lock status) – std actuator
230v
½NPT
A – Standard Actuator




220008F
KL1-SS ½NPT 230v LED only – flat actuator
230v
½NPT
F – Flat Actuator




220308F
KL1-SS ½NPT 230v LED2 (lock status) – flat actuator
230v
½NPT
F – Flat Actuator




220008HF
KL1-SS ½NPT 230v LED only – HF actuator
230v
½NPT
HF – Metal Flexible Actuator




220308HF
KL1-SS ½NPT 230v LED2 (lock status) – HF actuator
230v
½NPT
HF – Metal Flexible Actuator




220008HFH
KL1-SS ½NPT 230v LED only – HFH actuator
230v
½NPT
HFH – Stainless Steel Flexible Actuator




220308HFH
KL1-SS ½NPT 230v LED2 (lock status) – HFH actuator
230v
½NPT
HFH – Stainless Steel Flexible Actuator







			

				
				
				
				
				
Note
Available in 2 versions, standard or extra LED. The standard version provides an additional N/C output for ‘lock status’ whereas the ‘extra LED version’ uses this contact for the lock status to be displayed on the switch.
 
Technical Data
CertificatescULus
TechnologyPower to Unlock
Housing Material316 Grade Stainless Steel
Solenoid Voltage (by part number)24V ac/dc or 110V. ac or 230V. ac +/- 10% (12W.)
LED 2 (if fitted) Supply Voltage24V dc +/- 10%
Safety Contacts 11/12 21/22Utilization Category AC15 A300 3A.
Thermal Current (Ith) 5A
Overload protection fuse (fuse externally)10A. (FF)
Auxiliary Contact 33/3424V.ac/dc 0.5A. Maximum
Auxiliary Contact 43/44230V.ac/dc 0.5A. Maximum
Rated Insulation Voltage600VAC
Rated Impulse Withstand Volt2500VAC
Travel for Positive Opening10mm
Approach Speed200mm/m. to 1000mm/s
Man. Actuation Frequency2 cycle/sec
Actuator entry minimum radius175mm Standard 100mm Flexible
Enclosure ProtectionIP67, IP69K (QC version IP67 at the connector)
Operating Temperature-25 ... +40 °C
Holding ForceF1Max: 2000N. Fzh: 1538N
VibrationIEC 68-2-6, 10-55Hz+1Hz,
Excursion: 0.35mm, 1 octave/min
Conduit EntryM20 or 1/2" NPT
Fixing4 x M5
 
Information with regard to UL Standards
EnclosureType 1
Maximum temperature+40 °C
Terminal Torquee 6 lb ins. (0.7Nm)
Use 16-28AWG stranded copper conductors (rated 90°C).
Intended for same polarity use. A300 Pilot Duty. 240V. 3A
PF 0.38 or greater, tested for 6,000 cycles endurance
Use one polymeric conduit connection. 
Not suitable for connection to rigid metal conduit
KL1-SS Earth bonding terminal inside enclosure if required, use 16-12AWG conductors). 
 

			

				
				
				
				
				
			
				
					 
				
				

			
					
				
					 
				
				

			
					
				
					 
				
				

			
					
				
					 
				
				

			
		

			

				
				
				
				
				
			
			

				
					
						
					
					Data Sheet				
			

		 			
			

				
					
						
					
					KL1-SS STP 3D Model				
			

		 

			

				
				
				
				
				

	

					
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