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SLR High Level Safety Interlock

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Brand: ESPE

Model: SLR11 series


Safety interlock is a safety device used for lock & monitor the movable mechanism such as safety  fence door and cover. The high tension structure design make sure SLR11 safety interlock can withstand high tension; RFID technology ensure higher security and confidentiality. Sensor & label support universal coding & unique coding; Small size for each installation.

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Mô tả sản phẩm

Technical Parameter

Parameter of safety light curtain
StandardISO13849-1 (Category 4 PLe); IEC/EN60947-5-3
Locking modelMechanical lock/ Power to lock
Safety outputNPN*2/ PNP*2
Response timeLock-unlock100ms (independent working)
Unlock-lockapproximate 1mA
Response timeLock-unlock100ms (independent working)
Unlock-lockapproximate 1mA
LockingLock holding forceover 2000N
Lock bolt insertion deviationLess then 2mm
Mechanical endurance

over 1 million times

(door operaing speed 1m/s)

Operating frequency1Hz

Minumum radius of

revolving door

Over 220mm
Manual unlockingFront, back
Cascade linkingMax 20 pieces



(OSSD output)

Output typeTransistor output *2
Maximum load current≤200mA
Residual voltage (when it it on)<2.5V@200mA
Voltage when OFF≤2V @wire cable 5m
Leakage current≤0.5mA
Maximum load capacity2.2uF
Load connection resistance≤2.5Ω

AUX output(unsafe


Output typeTransistor output
Output quantity1
Maximum load capacity50mA
Residual voltage (when ON status)≤2.5V @50mA





Safety input1.5mA*2
Reset/ EDM inputAbout 10mA*1
Locking control inputAbout 10mA*1
PowerPower supplyDC24V±15%
Rated capacity4.6W (no load)

Safety circuit protection, current limit,

overload protection, overvoltage

protection, stop & restart when overheat, 

reverse polarity protection, transient noise protection, invalid pulse protection



Housing protection rateIP65

Operating ambient


-20°c-55°c (no freezing)
Storage temperature-25°c-70°c (no freezing)


ambient humidity

Storage temperature5%-95%RH
Vibraion resistance10Hz-55Hz, dounle amplitude 2.0mm, 5minutes each in X, Y and Z directions
Shock resistance30g 6 times each in X, Y and Z directions
                   Risk time100ms
                Restart time3.5s
                   MaterialNylon/ zinc alloy/ stainless steel

Model Selection Table

SLR11 series selection sheet

Lock/unlockConfigurationOutput typeEncoding modeModel
Power to lock

Advanced type

NPNUniversal encodingSLR11000N
Unique encodingSLR11001N
PNPUniversal encodingSLR11000P
Unique encodingSLR11001P
Advanced typeNPNUniversal encodingSLR11010N
Unique encodingSLR11011N
PNPUniversal encodingSLR11010P
Unique encodingSLR11011P

Power to unlock

Standard type

NPNUniversal encodingSLR11100N
Unique encodingSLR11101N
PNPUniversal encodingSLR11100P
Unique encodingSLR11101P
AdvancedNPNUniversal encodingSLR11110N
Unique encodingSLR11111N
PNPUniversal encodingSLR11110P
Unique encodingSLR11111P

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