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| Ordering details |
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| Product type description | T4K 256 STL-AS 2S - Ordering suffix |
| Article number | T4K 256 STL-AS 2S |
| EAN Code |
| eCl@ss | 27-27-26-01 |
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| Approval |
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| Approval | 
 |
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| Classification |
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| Application: Two position switches, dependent, on one safety guard: |
| Standards | EN ISO 13849-1, IEC 61508 |
| PL | up e |
| Control category | up 4 |
| PFH | 2 x 10−8 / |
| - notice | up to max. 100000 switching cycles/year |
| SIL | up 3 |
| Mission time | 20 Years |
| Application: Each time one position switch, independent, on two safety guards: |
| Standards | EN ISO 13849-1, IEC 61508 |
| PL | up c |
| Control category | up 1 |
| PFH value | 1.14 x 10−6 / |
| - notice | up to max. 100000 switching cycles/year |
| SIL | up 1 |
| Mission time | 20 Years |
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| Global Properties |
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| Permanent light | AS - 256 2S Winkelhebel 4K |
| Standards | EN 50295, EN 60947-5-1, EN ISO 13849-1, IEC 61508 |
Compliance with the Directives (Y/N)  | Yes |
| Suitable for safety functions (Y/N) | Yes |
| Materials |
| - Material of the housings | Plastic, glass-fibre reinforced thermoplastic, self-extinguishing |
| - Material of the connector | Plastic |
| - Material of the contacts | Silver |
| Housing coating |
| Housing construction form | Norm construction design |
| Weight |
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| Mechanical data |
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| Design of electrical connection | connector plug M12, 4-pole (AS-i connection)
connector socket M12, 4-pole (2 . switch) |
| connector | left (AS-i)
right (2. switch) |
| Mechanical life | 1.000.000 operations |
| Switching frequency | 5000 |
| Design of actuating element | Angle roller lever |
| Actuating force | 6 |
| restistance to shock | 30 / 11 |
| Resistance to vibration | 10 … 150, Amplitude 0,35 / 5 |
| Positive break force | 16 |
| Actuating speed for vertical actuation |
| - Max. Actuating speed | 1 |
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| Ambient conditions |
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| Ambient temperature |
| - Min. environmental temperature | −25 |
| - Max. environmental temperature | +60 |
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| - Min. Storage and transport temperature | −25 |
| - Max. Storage and transport temperature | +85 |
| Relative humidity | 30 … 95 |
| - non-condensing |
| - non-icing |
| Protection class | IP67 to IEC/EN 60529 |
| Protection rating | II |
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| Electrical data |
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| Design of control element | Opener (NC) |
| Switching principle | Creep circuit element |
- positive break NC contact  |
| Number of auxiliary contacts | 0 |
| Number of safety contacts | 2 |
| Rated impulse withstand voltage | 800 |
| Rated insulation voltage | 32 |
| Thermal test current | 10 A |
| Utilisation category | AC-15: 230 V / 4 A,
DC-13: 24 V / 1 A |
| Max. fuse rating | 6 A gG D-fuse |
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| Electrical data - AS interface |
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| AS-i Supply voltage | 18 … 31.6 VDC, Protection against polarity reversal |
| AS-i operating current | ≤ 50 |
| AS-i Device insulation | internally short-circuit proof |
| AS-i Specification |
| - version | V 3.0 |
| - Profile | S-0.B.F.F |
| AS-i Inputs |
| - Channel 1 | Data bits DI 0/DI 1= dynamic code transmission (Z/T 256 AS) |
| - Channel 2 | Data bits DI 2/DI 3= dynamic code transmission (2. switch) |
| AS-i Outputs | DO 0 … DO 3 not used |
| AS-i Parameter bits | P1 … P3 not used |
| - P0 | Channel 2 switched, switching condition 2. switch |
| AS-i input module address | 0 |
| - Default on address 0, programmable via the AS-Interface Master or Hand-held programming device |
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| LED switching conditions display |
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| LED switching conditions display (Y/N) | Yes |
| AS-i LED switching conditions display |
| (1) yellow LED | Channel 1 / AS-i SaW Bit 0,1 |
| (2) green/red LED (AS-i duo LED) | Supply voltage / Communication error / slave address = 0 |
| (3) yellow LED | Channel 2 / AS-i SaW Bit 2,3 |
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| ATEX |
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| Explosion protection categories for gases | None |
| Explosion protected category for dusts | None |
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| Dimensions |
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| Dimensions of the sensor |
| - Width of sensor | 87 |
| - Height of sensor | 94 |
| - Length of sensor | 31 |
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| Pin assignment |
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| Connector |
| 1 | AS interface + |
| 2 | None |
| 3 | AS interface − |
| 4 | None |
| connector socket 2. switch |
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| Diagram |
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Note Diagram
 positive break NC contact
 active
 no active
 Normally-open contact
 Normally-closed contact |
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| Switch travel diagram |
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Notes Switch travel diagram
 Contact closed
 Contact open
 Setting range
 Break point
 Positive opening sequence/- angle
VS adjustable range of NO contact
VÖ adjustable range of NC contact
N after travel
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| Ordering suffix |
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The applicable ordering suffix is added at the end of the part number of the safety switch.
Order example: T4K 256 STL-AS 2S-FKL
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| ...-FKL | Connection for flat cable, left
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K.A. Schmersal GmbH & Co. KG, Möddinghofe 30, D-42279 Wuppertal
The data and values have been checked throroughly. Technical modifications and errors excepted.
Generiert am
17.09.2019 -
14:30:50h Kasbase 3.3.0.F.64I |
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Safe switching and monitoring
Safety switch with separate actuator
T4K 256 STL-AS 2S