KL3-SS-RR Guard Locking Safety Switch with Rear Release

The KL3-SS-RR guard-locking safety interlock features a slimline, mirror-polished 316 stainless steel body and a holding force of up to 3000 N, helping keep medium to large guard doors securely closed until hazards have been removed. A non-latching manual escape release is provided, allowing the switch lock to be released quickly in an emergency.

The KL3-SS-RR is suitable for applications requiring strict washdown procedures, including high-temperature, high-pressure washing and exposure to corrosive cleaning chemicals.

Body manufactured from mirror-polished 316 grade stainless steel
Holding force up to F1Max 3000 N / 300 kg
Power-to-unlock interlock function
Rotating head with up to 8 actuator entry positions
Ingress protection up to IP69K
Connectivity via 3 × M20 or ½” NPT conduit entries

Part Number	Part Description	Voltage	Connection Type	Auxiliary Override	Actuator
215001	KL3-SS-RR M20 24V (std release)	24V	M20	Lid and Side	No Actuator
215001A	KL3-SS-RR M20 24V (std release) – std actuator	24V	M20	Lid and Side	A – Standard Actuator
215001F	KL3-SS-RR M20 24V (std release) – flat actuator	24V	M20	Lid and Side	F – Flat Actuator
215001HF	KL3-SS-RR M20 24V (std release) – HF actuator	24V	M20	Lid and Side	HF – Metal Flexible Actuator
215001HFH	KL3-SS-RR M20 24V (std release) – HFH actuator	24V	M20	Lid and Side	HFH – Stainless Steel Flexible Actuator
215301	KL3-SS-RR M20 24V (no release)	24V	M20	No Release	No Actuator
215301A	KL3-SS-RR M20 24V (no release) – std actuator	24V	M20	No Release	A – Standard Actuator
215301F	KL3-SS-RR M20 24V (no release) – flat actuator	24V	M20	No Release	F – Flat Actuator
215301HF	KL3-SS-RR M20 24V (no release) – HF actuator	24V	M20	No Release	HF – Metal Flexible Actuator
215301HFH	KL3-SS-RR M20 24V (no release) – HFH actuator	24V	M20	No Release	HFH – Stainless Steel Flexible Actuator
215401	KL3-SS-RR M20 24V (lid release)	24V	M20	Lid Only	No Actuator
215401A	KL3-SS-RR M20 24V (lid release) – std actuator	24V	M20	Lid Only	A – Standard Actuator
215401F	KL3-SS-RR M20 24V (lid release) – flat actuator	24V	M20	Lid Only	F – Flat Actuator
215401HF	KL3-SS-RR M20 24V (lid release) – HF actuator	24V	M20	Lid Only	HF – Metal Flexible Actuator
215401HFH	KL3-SS-RR M20 24V (lid release) – HFH actuator	24V	M20	Lid Only	HFH – Stainless Steel Flexible Actuator
215002	KL3-SS-RR ½”NPT 24V (std release)	24V	½”NPT	Lid and Side	No Actuator
215002A	KL3-SS-RR ½”NPT 24V (std release) – std actuator	24V	½”NPT	Lid and Side	A – Standard Actuator
215002F	KL3-SS-RR ½”NPT 24V (std release) – flat actuator	24V	½”NPT	Lid and Side	F – Flat Actuator
215002HF	KL3-SS-RR ½”NPT 24V (std release) – HF actuator	24V	½”NPT	Lid and Side	HF – Metal Flexible Actuator
215002HFH	KL3-SS-RR ½”NPT 24V (std release) – HFH actuator	24V	½”NPT	Lid and Side	HFH – Stainless Steel Flexible Actuator
215302	KL3-SS-RR ½”NPT 24V (no release)	24V	½”NPT	No Release	No Actuator
215302A	KL3-SS-RR ½”NPT 24V (no release) – std actuator	24V	½”NPT	No Release	A – Standard Actuator
215302F	KL3-SS-RR ½”NPT 24V (no release) – flat actuator	24V	½”NPT	No Release	F – Flat Actuator
215302HFH	KL3-SS-RR ½”NPT 24V (no release) – HFH actuator	24V	½”NPT	No Release	HFH – Stainless Steel Flexible Actuator
215402	KL3-SS-RR ½”NPT 24V (lid release)	24V	½”NPT	Lid Only	No Actuator
215402A	KL3-SS-RR ½”NPT 24V (lid release) – std actuator	24V	½”NPT	Lid Only	A – Standard Actuator
215402F	KL3-SS-RR ½”NPT 24V (lid release) – flat actuator	24V	½”NPT	Lid Only	F – Flat Actuator
215402HF	KL3-SS-RR ½”NPT 24V (lid release) – HF actuator	24V	½”NPT	Lid Only	HF – Metal Flexible Actuator
215402HFH	KL3-SS-RR ½”NPT 24V (lid release) – HFH actuator	24V	½”NPT	Lid Only	HFH – Stainless Steel Flexible Actuator
215004	KL3-SS-RR M20 110V (std release)	110V	M20	Lid and Side	No Actuator
215004A	KL3-SS-RR M20 110V (std release) – std actuator	110V	M20	Lid and Side	A – Standard Actuator
215004F	KL3-SS-RR M20 110V (std release) – flat actuator	110V	M20	Lid and Side	F – Flat Actuator
215004HF	KL3-SS-RR M20 110V (std release) – HF actuator	110V	M20	Lid and Side	HF – Metal Flexible Actuator
215004HFH	KL3-SS-RR M20 110V (std release) – HFH actuator	110V	M20	Lid and Side	HFH – Stainless Steel Flexible Actuator
215304	KL3-SS-RR M20 110V (no release)	110V	M20	No Release	No Actuator
215304A	KL3-SS-RR M20 110V (no release) – std actuator	110V	M20	No Release	A – Standard Actuator
215304F	KL3-SS-RR M20 110V (no release) – flat actuator	110V	M20	No Release	F – Flat Actuator
215304HF	KL3-SS-RR M20 110V (no release) – HF actuator	110V	M20	No Release	HF – Metal Flexible Actuator
215304HFH	KL3-SS-RR M20 110V (no release) – HFH actuator	110V	M20	No Release	HFH – Stainless Steel Flexible Actuator
215404	KL3-SS-RR M20 110V (lid release)	110V	M20	Lid Only	No Actuator
215404A	KL3-SS-RR M20 110V (lid release) – std actuator	110V	M20	Lid Only	A – Standard Actuator
215404F	KL3-SS-RR M20 110V (lid release) – flat actuator	110V	M20	Lid Only	F – Flat Actuator
215404HF	KL3-SS-RR M20 110V (lid release) – HF actuator	110V	M20	Lid Only	HF – Metal Flexible Actuator
215404HFH	KL3-SS-RR M20 110V (lid release) – HFH actuator	110V	M20	Lid Only	HFH – Stainless Steel Flexible Actuator
215005	KL3-SS-RR ½”NPT 110V (std release)	110V	½”NPT	Lid and Side	No Actuator
215005A	KL3-SS-RR ½”NPT 110V (std release) – std actuator	110V	½”NPT	Lid and Side	A – Standard Actuator
215005F	KL3-SS-RR ½”NPT 110V (std release) – flat actuator	110V	½”NPT	Lid and Side	F – Flat Actuator
215005HF	KL3-SS-RR ½”NPT 110V (std release) – HF actuator	110V	½”NPT	Lid and Side	HF – Metal Flexible Actuator
215005HFH	KL3-SS-RR ½”NPT 110V (std release) – HFH actuator	110V	½”NPT	Lid and Side	HFH – Stainless Steel Flexible Actuator
215305	KL3-SS-RR ½”NPT 110V (no release)	110V	½”NPT	No Release	No Actuator
215305A	KL3-SS-RR ½”NPT 110V (no release) – std actuator	110V	½”NPT	No Release	A – Standard Actuator
215305F	KL3-SS-RR ½”NPT 110V (no release) – flat actuator	110V	½”NPT	No Release	F – Flat Actuator
215305HF	KL3-SS-RR ½”NPT 110V (no release) – HF actuator	110V	½”NPT	No Release	HF – Metal Flexible Actuator
215305HFH	KL3-SS-RR ½”NPT 110V (no release) – HFH actuator	110V	½”NPT	No Release	HFH – Stainless Steel Flexible Actuator
215405	KL3-SS-RR ½”NPT 110V (lid release)	110V	½”NPT	Lid Only	No Actuator
215405A	KL3-SS-RR ½”NPT 110V (lid release) – std actuator	110V	½”NPT	Lid Only	A – Standard Actuator
215405F	KL3-SS-RR ½”NPT 110V (lid release) – flat actuator	110V	½”NPT	Lid Only	F – Flat Actuator
215405HF	KL3-SS-RR ½”NPT 110V (lid release) – HF actuator	110V	½”NPT	Lid Only	HF – Metal Flexible Actuator
215405HFH	KL3-SS-RR ½”NPT 110V (lid release) – HFH actuator	110V	½”NPT	Lid Only	HFH – Stainless Steel Flexible Actuator
215007	KL3-SS-RR M20 230V (std release)	230V	M20	Lid and Side	No Actuator
215007A	KL3-SS-RR M20 230V (std release) – std actuator	230V	M20	Lid and Side	A – Standard Actuator
215007F	KL3-SS-RR M20 230V (std release) – flat actuator	230V	M20	Lid and Side	F – Flat Actuator
215007HF	KL3-SS-RR M20 230V (std release) – HF actuator	230V	M20	Lid and Side	HF – Metal Flexible Actuator
215007HFH	KL3-SS-RR M20 230V (std release) – HFH actuator	230V	M20	Lid and Side	HFH – Stainless Steel Flexible Actuator
215307	KL3-SS-RR M20 230V (no release)	230V	M20	No Release	No Actuator
215307A	KL3-SS-RR M20 230V (no release) – std actuator	230V	M20	No Release	A – Standard Actuator
215307F	KL3-SS-RR M20 230V (no release) – flat actuator	230V	M20	No Release	F – Flat Actuator
215307HF	KL3-SS-RR M20 230V (no release) – HF actuator	230V	M20	No Release	HF – Metal Flexible Actuator
215307HFH	KL3-SS-RR M20 230V (no release) – HFH actuator	230V	M20	No Release	HFH – Stainless Steel Flexible Actuator
215407	KL3-SS-RR M20 230V (lid release)	230V	M20	Lid Only	No Actuator
215407A	KL3-SS-RR M20 230V (lid release) – std actuator	230V	M20	Lid Only	A – Standard Actuator
215407F	KL3-SS-RR M20 230V (lid release) – flat actuator	230V	M20	Lid Only	F – Flat Actuator
215407HF	KL3-SS-RR M20 230V (lid release) – HF actuator	230V	M20	Lid Only	HF – Metal Flexible Actuator
215407HFH	KL3-SS-RR M20 230V (lid release) – HFH actuator	230V	M20	Lid Only	HFH – Stainless Steel Flexible Actuator
215008	KL3-SS-RR ½”NPT 230V (std release)	230V	½”NPT	Lid and Side	No Actuator
215008A	KL3-SS-RR ½”NPT 230V (std release) – std actuator	230V	½”NPT	Lid and Side	A – Standard Actuator
215008F	KL3-SS-RR ½”NPT 230V (std release) – flat actuator	230V	½”NPT	Lid and Side	F – Flat Actuator
215008HF	KL3-SS-RR ½”NPT 230V (std release) – HF actuator	230V	½”NPT	Lid and Side	HF – Metal Flexible Actuator
215008HFH	KL3-SS-RR ½”NPT 230V (std release) – HFH actuator	230V	½”NPT	Lid and Side	HFH – Stainless Steel Flexible Actuator
215308	KL3-SS-RR ½”NPT 230V (no release)	230V	½”NPT	No Release	No Actuator
215308A	KL3-SS-RR ½”NPT 230V (no release) – std actuator	230V	½”NPT	No Release	A – Standard Actuator
215308F	KL3-SS-RR ½”NPT 230V (no release) – flat actuator	230V	½”NPT	No Release	F – Flat Actuator
215308HF	KL3-SS-RR ½”NPT 230V (no release) – HF actuator	230V	½”NPT	No Release	HF – Metal Flexible Actuator
215308HFH	KL3-SS-RR ½”NPT 230V (no release) – HFH actuator	230V	½”NPT	No Release	HFH – Stainless Steel Flexible Actuator
215408	KL3-SS-RR ½”NPT 230V (lid release)	230V	½”NPT	Lid Only	No Actuator
215408A	KL3-SS-RR ½”NPT 230V (lid release) – std actuator	230V	½”NPT	Lid Only	A – Standard Actuator
215408F	KL3-SS-RR ½”NPT 230V (lid release) – flat actuator	230V	½”NPT	Lid Only	F – Flat Actuator
215408HF	KL3-SS-RR ½”NPT 230V (lid release) – HF actuator	230V	½”NPT	Lid Only	HF – Metal Flexible Actuator
215408HFH	KL3-SS-RR ½”NPT 230V (lid release) – HFH actuator	230V	½”NPT	Lid Only	HFH – Stainless Steel Flexible Actuator

Technical Data
Certificates	cULus
Technology	Power to Unlock
Housing Material	316 Grade Stainless Steel
Solenoid Voltage (by part number)	24V ac/dc or 110V. ac or 230V. ac +/- 10% (12W.)
LED 2 Supply Voltage	24V dc +/- 10%
Safety Contacts 11/12 21/22	Utilization Category AC15 A300 3A. Thermal Current (Ith) 5A
Overload protection fuse (fuse externally	10A. (FF).
Auxiliary Contact 33/34 (selectable with LED2)	24V.ac/dc 0.5A. maximum.
Auxiliary Contact 43/44	230V.ac/dc 0.5A. maximum.
Rated Insulation Voltage	600VAC
Rated Impulse Withstand Volt	2500VAC
Travel for Positive Opening	10mm
Approach Speed	200mm/m. to 1000mm/s.
Man. Actuation Frequency	2 cycle/sec
Actuator entry minimum radius	175mm Standard 100mm Flexible
Enclosure Protection	IP67, IP69K
Operating Temperature	-25 ... +40 °C
Holding Force	F1Max: 3000N. Fzh: 2307N.
Vibration	IEC 68-2-6, 10-55Hz+1Hz, Excursion: 0.35mm, 1 octave/min
Conduit Entry	M20 or 1/2" NPT
Fixing	4 x M5

Information with regard to UL Standards
Enclosure	Type 1
Maximum temperature	+40 °C
Terminal Torque	e 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
(Earth bonding terminal inside enclosure if required).

KL3-SS-RR Rear Escape Release
Where the Risk Assessment for the application permits, a non latching manual escape release version (KL3-SS-RR) enables quick release of the switch lock in case of emergency. The switch can be mounted such that access to the release button is available from inside the active guard area. Pressing and holding the release button will release the lock mechanism and open the lock monitoring contacts, whilst the guard can be pushed open. Measures should be taken to reduce the risk of improper activation.

KL3-SS-RR Rear Escape Release

Where the Risk Assessment for the application permits, a non latching manual escape release version (KL3-SS-RR) enables quick release of the switch lock in case of emergency. The switch can be mounted such that access to the release button is available from inside the active guard area. Pressing and holding the release button will release the lock mechanism and open the lock monitoring contacts, whilst the guard can be pushed open. Measures should be taken to reduce the risk of improper activation.