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

Guard Locking Safety Switch up to 2000N (KL1-SS)

The KL1-SS guard locking safety interlock features a compact 316 stainless steel body and a holding force of up to 2000N to keep medium to large guard doors closed until hazards have been removed.

  • Body Material: 316 Grade Stainless Steel
  • Holding Force: F1Max 2000N (200Kg)
  • Actuation: Rotating head for 4 entry positions
  • Ingress Protection: IP69K
  • Conduit: 1 x M20 or ½” NPT (Quick Connect Available)

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.

Product TypePart No.Part Description
KL1-SS220001KL1-SS M20 24v LED only
KL1-SS220001AKL1-SS M20 24v LED only – std actuator
KL1-SS220001FKL1-SS M20 24v LED only – flat actuator
KL1-SS220001HFKL1-SS M20 24v LED only – HF actuator
KL1-SS220001HFHKL1-SS M20 24v LED only – HFH actuator
KL1-SS220002KL1-SS ½NPT 24v LED only
KL1-SS220002AKL1-SS ½NPT 24v LED only – std actuator
KL1-SS220002FKL1-SS ½NPT 24v LED only – flat actuator
KL1-SS220002HFKL1-SS ½NPT 24v LED only – HF actuator
KL1-SS220002HFHKL1-SS ½NPT 24v LED only – HFH actuator
KL1-SS220003KL1-SS QC M12 8way 24v LED only
KL1-SS220003AKL1-SS QC M12 8way 24v LED only – std actuator
KL1-SS220003FKL1-SS QC M12 8way 24v LED only – flat actuator
KL1-SS220003HFKL1-SS QC M12 8way 24v LED only – HF actuator
KL1-SS220003HFHKL1-SS QC M12 8way 24v LED only – HFH actuator
KL1-SS220004KL1-SS M20 110v LED only
KL1-SS220004AKL1-SS M20 110v LED only – std actuator
KL1-SS220004FKL1-SS M20 110v LED only – flat actuator
KL1-SS220004HFKL1-SS M20 110v LED only – HF actuator
KL1-SS220004HFHKL1-SS M20 110v LED only – HFH actuator
KL1-SS220005KL1-SS ½NPT 110v LED only
KL1-SS220005AKL1-SS ½NPT 110v LED only – std actuator
KL1-SS220005FKL1-SS ½NPT 110v LED only – flat actuator
KL1-SS220005HFKL1-SS ½NPT 110v LED only – HF actuator
KL1-SS220005HFHKL1-SS ½NPT 110v LED only – HFH actuator
KL1-SS220006KL1-SS QC M12 8way 110v LED only
KL1-SS220006AKL1-SS QC M12 8way 110v LED only – std actuator
KL1-SS220006FKL1-SS QC M12 8way 110v LED only – flat actuator
KL1-SS220006HFKL1-SS QC M12 8way 110v LED only – HF actuator
KL1-SS220006HFHKL1-SS QC M12 8way 110v LED only – HFH actuator
KL1-SS220007KL1-SS M20 230v LED only
KL1-SS220007AKL1-SS M20 230v LED only – std actuator
KL1-SS220007FKL1-SS M20 230v LED only – flat actuator
KL1-SS220007HFKL1-SS M20 230v LED only – HF actuator
KL1-SS220007HFHKL1-SS M20 230v LED only – HFH actuator
KL1-SS220008KL1-SS ½NPT 230v LED only
KL1-SS220008AKL1-SS ½NPT 230v LED only – std actuator
KL1-SS220008FKL1-SS ½NPT 230v LED only – flat actuator
KL1-SS220008HFKL1-SS ½NPT 230v LED only – HF actuator
KL1-SS220008HFHKL1-SS ½NPT 230v LED only – HFH actuator
KL1-SS220009KL1-SS QC M12 8way 230v LED only
KL1-SS220009AKL1-SS QC M12 8way 230v LED only – std actuator
KL1-SS220009FKL1-SS QC M12 8way 230v LED only – flat actuator
KL1-SS220009HFKL1-SS QC M12 8way 230v LED only – HF actuator
KL1-SS220009HFHKL1-SS QC M12 8way 230v LED only – HFH actuator
KL1-SS220301KL1-SS M20 24v LED2 (lock status)
KL1-SS220301AKL1-SS M20 24v LED2 (lock status) – std actuator
KL1-SS220301FKL1-SS M20 24v LED2 (lock status) – flat actuator
KL1-SS220301HFKL1-SS M20 24v LED2 (lock status) – HF actuator
KL1-SS220301HFHKL1-SS M20 24v LED2 (lock status) – HFH actuator
KL1-SS220302KL1-SS ½NPT 24v LED2 (lock status)
KL1-SS220302AKL1-SS ½NPT 24v LED2 (lock status) – std actuator
KL1-SS220302FKL1-SS ½NPT 24v LED2 (lock status) – flat actuator
KL1-SS220302HFKL1-SS ½NPT 24v LED2 (lock status) – HF actuator
KL1-SS220302HFHKL1-SS ½NPT 24v LED2 (lock status) – HFH actuator
KL1-SS220304KL1-SS M20 110v LED2 (lock status)
KL1-SS220304AKL1-SS M20 110v LED2 (lock status) – std actuator
KL1-SS220304FKL1-SS M20 110v LED2 (lock status) – flat actuator
KL1-SS220304HFKL1-SS M20 110v LED2 (lock status) – HF actuator
KL1-SS220304HFHKL1-SS M20 110v LED2 (lock status) – HFH actuator
KL1-SS220305KL1-SS ½NPT 110v LED2 (lock status)
KL1-SS220305AKL1-SS ½NPT 110v LED2 (lock status) – std actuator
KL1-SS220305FKL1-SS ½NPT 110v LED2 (lock status) – flat actuator
KL1-SS220305HFKL1-SS ½NPT 110v LED2 (lock status) – HF actuator
KL1-SS220305HFHKL1-SS ½NPT 110v LED2 (lock status) – HFH actuator
KL1-SS220307KL1-SS M20 230v LED2 (lock status)
KL1-SS220307AKL1-SS M20 230v LED2 (lock status) – std actuator
KL1-SS220307FKL1-SS M20 230v LED2 (lock status) – flat actuator
KL1-SS220307HFKL1-SS M20 230v LED2 (lock status) – HF actuator
KL1-SS220307HFHKL1-SS M20 230v (lock status) LED2 – HFH actuator
KL1-SS220308KL1-SS ½NPT 230v LED2 (lock status)
KL1-SS220308AKL1-SS ½NPT 230v LED2 (lock status) – std actuator
KL1-SS220308FKL1-SS ½NPT 230v LED2 (lock status) – flat actuator
KL1-SS220308HFKL1-SS ½NPT 230v LED2 (lock status) – HF actuator
KL1-SS220308HFHKL1-SS ½NPT 230v LED2 (lock status) – HFH actuator

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).