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SQ4-C11 | Safety Liquid Leak Sensor [Control Category 4 PLe SIL3] SQ4


Safety Liquid Leak Sensor [Control Category 4 PLe SIL3] SQ4

*Photo may vary from actual product.

  • RoHS Compliant This product has been confirmed that it does not contain the 6 substances specified in EU RoHS Directive 2011/65/EU and the 4 substances specified in 2015/863/EU.  


Product Number SQ4-C11
Part Number SQ4-C11
Product Safety Liquid Leak Sensor [Control Category 4 PLe SIL3]
Details Controller
Product name Safety Liquid Leak Sensor [Control Category 4 PLe SIL3] SQ4

As of May 23, 2022
Specifications and design of the products are subject to change without notice for the product improvement.

Spec Detail

Item Specifications
Product Number SQ4-C11
Part Number SQ4-C11
CE marking directive compliance Machinery Directive, EMC Directive, RoHS Directive
Applicable standards:International standard ISO 13849-1 (Category 4, PLe), IEC 60947-5-2, IEC 61508-1 to 7 (SIL3), IEC 62061 (SIL3)
Applicable standards:Japan JIS B 9705-1 (Category 4), JIS C 0508-1 to 7 (SIL3)
Applicable standards:Europe (EU) EN 60947-5-2, EN 55011 Class A, EN 61000-6-2, EN 50178, EN ISO 13849-1 (Category 4, PLe), EN 61508-1 to 7 (SIL3)
(Note) Regarding EU Machinery Directive, a Notified Body, TUV SUD, has certified with the type examination certificate.
Applicable standards:South Korea S1-G-1-2009, S2-W-5-2009
Applicable standards:SEMI Conforming to SEMI-S2-0310a
Power voltage 24 V DC+10-15 % Ripple P-P 10 % or less
Current consumption 200 mA or less
Control outputs (OSSD 1, OSSD 2) PNP open-collector transistor / NPN open-collector transistor (switch method)
[Selecting PNP output]
- Maximum source current: 200 mA
- Applied voltage: Same as power voltage (between control output to +V)
- Residual voltage: 2.5 V or less (at 200 mA source current)
[Selecting NPN output]
- Maximum sink current: 200 mA
- Applied voltage: Same as power voltage (between control output to 0 V)
- Residual voltage: 2.0 V or less (at 200 mA sink current)
Control output(OSSD 1, OSSD 2):Response time 20 ms or less (excluding the response time of the sensor)
Control outputs (OSSD 1, OSSD 2):Operation mode ON when normal condition or initial detection, OFF when detection leakage or wrong installation
Sensor monitor output(AUX1, 2, 3, 4, Non-safety output) PNP open-collector transistor / NPN open-collector transistor (switch method)
[Selecting PNP output]
- Maximum source current: 60 mA
- Applied voltage: Same as power voltage(between sensor monitor output to +V)
- Residual voltage: 2.5 V or less (at 60 mA source current)
[Selecting NPN output]
- Maximum sink current: 60 m A
- Applied voltage: Same as power voltage(between sensor monitor output to 0 V)
- Residual voltage: 2.0 V or less (at 60 mA sink current)
Sensor monitor output(AUX1, 2, 3, 4, Non-safety output):Response time 100 ms or less (excluding the response time of the sensor)
Sensor monitor output(AUX1, 2, 3, 4, Non-safety output):Operation mode(Output operation) ON when normal condition, OFF when initial detection or accidental leakage
Lockout output OFF for lockout (Rating: Same as sensor monitor output)
Auxiliary output Negative logic output of control output 1 / 2 (OSSD 1 / 2) (Rating: Same as sensor monitor output)
[Auxiliary output ON when control output 1 / 2 (OSSD 1/2) is OFF]
Functions Interlock / lockout cancel / Test input / External device monitor / Safety input / Control output polarity selection / Non-safety output polarity selection / Sensor connection number setting
Protection IP20 (IEC) (However, it should be in IP54 protection structure of control panel)
Ambient temperature -10 to +55 ℃ +14 to +131℉ (No dew condensation or icing allowed), Storage: -20 to +70 ℃ -4 to +158 ℉
Ambient humidity 35 to 85 % RH, Storage: 35 to 85 % RH
PFHD 2.55 x 10-9 (when connecting 4 safety liquid connecting sensors)
MTTFD 100 years or more
Material Main unit case: PC + ABS (alloy)
Weight Net weight: 170 g approx
Gross weight: 440 g approx

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Accessories (Option)

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Product Number CN-EP2
Part Number CN-EP2
Product name Connector
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Product Number CN-EP3
Part Number CN-EP3
Product name Hook-up connector

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