Switch Amplifier KCD2-SR-EX1.LB
- 1-channel isolated barrier
- 24 V DC supply (Power Rail)
- Dry contact or NAMUR inputs
- Usable as signal splitter (1 input and 2 outputs)
- Relay contact output
- Fault relay contact output
- Line fault detection (LFD)
- Housing width 12.5 mm
- Up to SIL 2 acc. to IEC/EN 61508
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous area to the non-hazardous area.
The proximity sensor or the mechanical contact controls the control side load for a relay contact output. The device output changes the state when the input signal changes the state.
Via switches the mode of operation can be reversed and the line fault detection can be switched off.
During a fault condition, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE 44.
If the device is operated via Power Rail, additionally a collective error message is available.
Due to its compact housing design and low heat dissipation, this device is useful for detecting positions, end stops, and switching states in space-critical applications.
| Product Description | |
|---|---|
| 24 V DC supply (Power Rail) | |
| General specifications | |
| Signal type | Digital Input |
| Functional safety related parameters | |
| Safety Integrity Level (SIL) | SIL 2 |
| Supply | |
| Connection | Power Rail or terminals 9+, 10- |
| Rated voltage | 19 ... 30 V DC |
| Ripple | ≤ 10 % |
| Rated current | ≤ 37 mA |
| Power dissipation | ≤ 750 mW |
| Power consumption | ≤ 750 mW |
| Input | |
| Connection side | field side |
| Connection | terminals 1+, 2- |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Open circuit voltage/short-circuit current | approx. 8 V DC / approx. 8 mA |
| Switching point/switching hysteresis | 1.2 ... 2.1 mA / approx. 0.2 mA |
| Line fault detection | breakage I ≤ 0.1 mA , short-circuit I ≥ 6.5 mA |
| Pulse/Pause ratio | min. 20 ms / min. 20 ms |
| Output | |
| Connection side | control side |
| Connection | output I: terminals 5, 6 ; output II: terminals 7, 8 |
| Output I | signal ; relay |
| Output II | signal or error message ; relay |
| Contact loading | 250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 30 V DC/2 A resistive load |
| Minimum switch current | 2 mA / 24 V DC |
| Energized/De-energized delay | ≤ 20 ms / ≤ 20 ms |
| Mechanical life | 107 switching cycles |
| Transfer characteristics | |
| Switching frequency | ≤ 10 Hz |
| Galvanic isolation | |
| Input/Output | reinforced insulation acc. to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Input/power supply | reinforced insulation acc. to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Output/power supply | reinforced insulation acc. to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Output/Output | reinforced insulation acc. toIEC/EN 61010-1, rated insulation voltage 300 Veff |
| Indicators/settings | |
| Display elements | LEDs |
| Control elements | DIP-switch |
| Configuration | via DIP switches |
| Labeling | space for labeling at the front |
| Directive conformity | |
| Electromagnetic compatibility | |
| Directive 2014/30/EU | EN 61326-1:2013 (industrial locations) |
| Low voltage | |
| Directive 2014/35/EU | EN 61010-1:2010+A1:2019+A1:2019/AC:2019 |
| Conformity | |
| Electromagnetic compatibility | NE 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018 |
| Degree of protection | IEC 60529:1989+A1:1999+A2:2013 |
| Functional safety | IEC/EN 61508:2010 |
| Input | EN 60947-5-6:2000 |
| Ambient conditions | |
| Ambient temperature | -40 ... 70 °C (-40 ... 158 °F) |
| Mechanical specifications | |
| Degree of protection | IP20 |
| Connection | screw terminals |
| Mass | approx. 100 g |
| Dimensions | 12.5 x 119 x 114 mm (0.5 x 4.7 x 4.5 inch) (W x H x D) , housing type A2 |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Data for application in connection with hazardous areas | |
| EU-type examination certificate | BASEEFA 06 ATEX 0092 X |
| Marking |
 II 3(1)G Ex ec nC [ia Ga] IIC T4 Gc , II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I
|
| Input | Ex ia |
| Voltage | 10.5 V |
| Current | 13 mA |
| Power | 34 mW (linear characteristic) |
| Supply | |
| Maximum safe voltage | 253 V AC (Attention! Um is no rated voltage.) |
| Output | |
| Contact loading | Zone 2 : 50 V AC/2 A/cos φ > 0.75; 30 V DC/2 A resistive load |
| Maximum safe voltage | 253 V AC (Attention! The rated voltage can be lower.) |
| Fault indication output | |
| Maximum safe voltage | 40 V DC (Attention! Um is no rated voltage.) |
| Galvanic isolation | |
| Input/Output | safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V |
| Input/power supply | safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V |
| Directive conformity | |
| Directive 2014/34/EU | EN IEC 60079-0:2018 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 , EN IEC 60079-15:2019 |
| International approvals | |
| UL approval | E106378 |
| Control drawing | 116-0420 (cULus) |
| IECEx approval | |
| IECEx certificate | IECEx BAS 06.0025 X |
| IECEx marking | Ex ec nC [ia Ga] IIC T4 Gc [Ex ia Da] IIIC [Ex ia Ma] I |
| General information | |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see - www.control-automation.com/ |
