HomeProductsTransponder-coded key systems EKS and CKSSafe key system CKS2 with internal evaluationSafe key system CKS2, compact deviceCKS2-K-BP-CC-FLX-F00-USI-168631
CKS2-K-BP-CC-FLX-F00-USI-168631 (Order no. 168631)
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Key adapter CKS2-K-BP with FlexFunction
- Key adapter with integrated evaluation electronics
- Suitable for separate operation (no series connection)
- 2 safety outputs (semiconductor outputs)
- Short circuit monitoring
- Category 4 / PL e according to EN ISO 13849-1
- LED indicator, multi-color RGB
- M12 plug connector, 5-pin, connecting cable, 15 cm
- Direct connection to IP67 field modules
- Pushbutton for teach-in operation
- Mechanical detent mechanism for inserted key

Description
Category according to EN 13849-1
Due to two redundantly designed semiconductor outputs (safety outputs) with internal monitoring suitable for:
- Category 4/PL e according to EN 13849-1
Important: To achieve the stated category according to EN ISO 13849-1, both safety outputs (FO1A and FO1B) must be evaluated.
Key evaluation
EUCHNER products with FlexFunction require a teach-in operation during setup to configure the device. The device’s function depends on the taught-in key type.
Important: Keys must be ordered separately!
Terminal assignment
Pin | Designation | Function |
---|---|---|
1 | UB | Power supply, DC 24 V |
2 | FO1A | Safety output, channel A |
3 | 0 V | Ground, DC 0 V |
4 | FO1B | Safety output, channel B |
5 | - | n.c. |


Dimensional drawings

1 | LED |
2 | Rubber seal |
3 | Pushbutton |
Connection examples

Technical data
Approvals


Electrical connection values
Fuse | |
external (operating voltage UB) | 0.25 ... 8 A |
rated conditional short-circuit current | 100 A |
Rated insulation voltage Ui | 300 V |
Rated impulse voltage Uimp | 1.5 kV |
Operating voltage DC | |
UB | 24 V DC -15% ... +20% reverse polarity protected, regulated, residual ripple<5%, PELV |
Turn-on time | |
Safety outputs | max. 100 ms |
EMC protection requirements | Acc. to EN IEC 60947-5-3 |
Utilization category | |
DC-13 | 24 V 150 mA (Caution: outputs must be protected with a free-wheeling diode in case of inductive loads.) |
Off-state current Ir | max. 0.25 mA |
Risk time according to EN 60947-5-3 | max. 125 ms |
Safety class | III |
Current consumption | 40 mA |
Degree of contamination (external, according to EN 60947-1) | 2 |
Safety outputs FO1A/ FO1B | |
Output type | Semiconductor outputs, p-switching, short circuit-proof |
Output voltage | |
LOW U(FO1A) / U(FO1B) | 0 ... 1 V DC |
HIGH U(FO1A) / U(FO1B) | UB-4V ... UB V DC |
Discrepancy time | max. 10 ms |
Switching current | |
per safety output | 1 ... 150 mA |
Test pulse duration | 0.3 ms |
Test pulse interval | 97 ... 105 ms |
Mechanical values and environment
Ready delay | 2 s |
Installation orientation | on the front |
Storage temperature | -30 ... +70 °C |
Mounting cut-out | 33 x 68 mm |
Shock and vibration resistance | Acc. to EN IEC 60947-5-3 |
Degree of protection | |
in mounted condition (only access side) | IP65/IP67 (when installed) |
Ambient temperature | |
for UB= 24 V DC | -30 ... +55 °C |
Material | |
Connecting cable | PUR |
Housing | Plastic PA6-GF30 black |
Connection X1 | |
Connection type | Connecting cable with plug connector M12 |
Static bending radius | 5x cable diameter |
Cable outlet | straight |
Cable length | 0.15 m |
Number of pins | 5 |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
PL | Maximum SIL | PFHD | Category | Mission time | |
---|---|---|---|---|---|
Safe key detection | PL e | 3 | 4.11x10-9 | 4 | 20 y |
Accessories
Actuator
Key A-FLX-K-0A FlexFunction, 1 key per packaging unit

168921
A-FLX-K-0A-RD-168921
A-FLX-K-0A-RD-168921
- Transponder coding
- High coding level in accordance with EN 14119
- Key type 0A: 1 key per packaging unit
- Key color red

171455
A-FLX-K-0A-BK-171455
A-FLX-K-0A-BK-171455
- Transponder coding
- High coding level in accordance with EN 14119
- Key type 0A: 1 key per packaging unit
- Key color black

171456
A-FLX-K-0A-BU-171456
A-FLX-K-0A-BU-171456
- Transponder coding
- High coding level in accordance with EN 14119
- Key type 0A: 1 key per packaging unit
- Key color blue

171458
A-FLX-K-0A-YE-171458
A-FLX-K-0A-YE-171458
- Transponder coding
- High coding level in accordance with EN 14119
- Key type 0A: 1 key per packaging unit
- Key color yellow
Connection material
Connecting cable with 2 plug connectors M12, 5-pin, 10 m

100181
C-M12F05-05X034PV10,0-M12M05-100181
C-M12F05-05X034PV10,0-M12M05-100181
- M12 female plug to M12 plug connector, 5-pin
- Straight female plug and plug connector
- PVC cable
- Cable length 10 m

119947
C-M12F05-05X034PU10,0-M12M05-119947
C-M12F05-05X034PU10,0-M12M05-119947
- M12 female plug to M12 plug connector, 5-pin
- Straight female plug and plug connector
- PUR cable
- Cable length 10 m
Connecting cable with 2 plug connectors M12, 5-pin, 20 m

100182
C-M12F05-05X034PV20,0-M12M05-100182
C-M12F05-05X034PV20,0-M12M05-100182
- M12 female plug to M12 plug connector, 5-pin
- Straight female plug and plug connector
- PVC cable
- Cable length 20 m

119971
C-M12F05-05X034PU20,0-M12M05-119971
C-M12F05-05X034PU20,0-M12M05-119971
- M12 female plug to M12 plug connector, 5-pin
- Straight female plug and plug connector
- PUR cable
- Cable length 20 m
Connecting cable with 2 plug connectors M12, 5-pin, 5 m

100180
C-M12F05-05X034PV05,0-M12M05-100180
C-M12F05-05X034PV05,0-M12M05-100180
- M12 female plug to M12 plug connector, 5-pin
- Straight female plug and plug connector
- PVC cable
- Cable length 5 m

119932
C-M12F05-05X034PU05,0-M12M05-119932
C-M12F05-05X034PU05,0-M12M05-119932
- M12 female plug to M12 plug connector, 5-pin
- Straight female plug and plug connector
- PUR cable
- Cable length 5 m
Downloads
Complete package
Download all important documents with a single click.
Content:
- The operating instructions and any additions to the operating instructions or brief instructions
- Any data sheets to supplement the operating instructions
- The declaration of conformity
Download Complete Package (ZIP, 4,7 MB)
Single Documents
Declarations of conformity
EU-Konformitätserklärung
Doc. no.
Version
Language
Size

EU-Konformitätserklärung
Doc. no.
EDC2137351
Version
Language
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0,2 MB
UKCA-Konformitätserklärung
Doc. no.
Version
Language
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UKCA-Konformitätserklärung
Doc. no.
EDC20001475
Version
Language
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0,2 MB
Instructions
Operating Instructions Key Adapter CKS2-K-BP/BR-CC-FLX
Doc. no.
Version
Language
Size

Operating Instructions Key Adapter CKS2-K-BP/BR-CC-FLX
Doc. no.
MAN20001512
Version
07/23
Language
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3,2 MB

Mode d’emploi Serrure CKS2-K-BP/BR-CC-FLX
Doc. no.
MAN20001512
Version
07/23
Language
Size
3,2 MB

Manual de instrucciones Módulo adaptador para la llave CKS2-K-BP/BR-CC-FLX
Doc. no.
MAN20001512
Version
07/23
Language
Size
3,2 MB

Betriebsanleitung Schlüsselaufnahme CKS2-K-BP/BR-CC-FLX
Doc. no.
MAN20001512
Version
07/23
Language
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3,1 MB
Other Documents
Approvals and certificates
FCC
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FCC
Doc. no.
20001549
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0,1 MB
IC
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IC
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20001550
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0,1 MB
c UL us
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c UL us
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0,3 MB
Sales documents
UQS document
Bescheinigung
Doc. no.
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Bescheinigung
Doc. no.
ECO20001552
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0,2 MB
Ordering data
Ordernumber | 168631 |
Item designation | CKS2-K-BP-CC-FLX-F00-USI-168631 |
Gross weight | 0,19kg |
Customs tariff number | 85389099990 |
ECLASS | 27-27-24-03 Safety-related transponder switch |