Excerpt from the technical data sheet: Technical characteristics of the KHA6-SH-Ex1
| Main Features | ||
|---|---|---|
| Signal type | Digital input | |
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Parameters related to functional safety |
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| Safety Integrity Level (SIL) | Security Level 3 | |
| Performance Level (PL) | PL d | |
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Supply |
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| Connection | terminals 22, 23, 24 | |
| Nominal voltage | 85...253 V AC, 45...65 Hz | |
| Rated current | 30 mA ± 5 mA | |
| Power dissipation | 2.2 W | |
| Power consumption | Max 2.3 W | |
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Entrance |
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| Connection side | side of the field | |
| Connection | terminals 10+, 12- | |
| Open circuit voltage/short circuit current | approx. 8.4 VDC / approx. 11.7 mA | |
| Lead resistance | ≤ 50 Ohm, in hazardous areas the cable capacitance and inductance must be taken into account | |
| Switching point |
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The relay is de-energized | I < 2.1 mA and I > 5.9 mA |
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The relay is on | 2.8 mA < I < 5.3 mA |
| Delayed response | ≤ 1 ms | |
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Exit |
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| Connection side | control side | |
| Connection | output I: terminals 13, 14; output II: terminals 15, 21; output III: terminals 16+, 17- | |
| Exit I | relay, signal | |
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Contact loading | 253VAC/1A/cos φ ≥ 0.7; 24VDC/1A resistive load |
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Mechanical life | 50 x 10 6 switching cycles |
| Exit II | relay, signal | |
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Contact loading | 253VAC/1A/cos φ ≥ 0.7; 24VDC/1A resistive load |
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Mechanical life | 50 x 10 6 switching cycles |
| Exit III | electronic output, passive, fault signal | |
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Nominal voltage | 10 ... 30 V DC current |
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Signal level |
1-signal: (L+) -2.5 V (7 mA, short-circuit protection) / 0-signal: output blocked (leakage current ≤ 10 μA) |
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Transmission characteristics |
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| Switching frequency | 5 Hz | |
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Indicators/settings |
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| Display elements | LEDs | |
| Marking | marking space at the front | |
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Compliance with the directive |
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| Electromagnetic compatibility |
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Directive 2014/30/EU | EN 61326-1:2013 (industrial premises) |
| Machinery Directive |
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Directive 2006/42/EU | EN/ISO 13849-1:2015 |
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Correspondence |
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| Electromagnetic compatibility | NE 21:2011 | |
| Degree of protection | IEC 60529:2001 | |
| Safety | IEC/NE 61508:2010 | |
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Environmental conditions |
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| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) | |
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Mechanical characteristics |
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| Degree of protection | IP20 | |
| Connection | screw terminals | |
| weight | approx. 280 g | |
| Dimensions | 40 x 93 x 115 mm (1.6 x 3.7 x 4.5 in) (W x H x D), housing type E | |
| Installation | on a 35 mm DIN rail in accordance with EN 60715:2001 | |
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Data for use in hazardous areas |
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| EU Type Examination Certificate | PTB 00 ATEX 2043 | |
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Marking |
 II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
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Entrance | Ex ia |
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Voltage | 9.56 V |
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Current | 16.8 mA |
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Power | 41 mW (linear characteristic) |
| Supply |
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Maximum safe voltage | 253V AC/DC (Caution: Nominal voltage may be lower.) |
| Exit |
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Contact loading | 253VAC/1A/cos φ ≥ 0.7; 24VDC/1A resistive load |
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Maximum safe voltage | Output I/Output II: 253V AC/DC (Note: U m is not the nominal voltage.) |
| Galvanic isolation |
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Input, output | safe electrical insulation in accordance with IEC/EN 60079-11, peak voltage 375 V |
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Input/Power | safe electrical insulation in accordance with IEC/EN 60079-11, peak voltage 375 V |
| Compliance with the directive |
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Directive 2014/34/EU | EN IEC 60079-0:2018+AC:2020, EN 60079-11:2012 |