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KCD2SREX1LB

Sensor / Switch Amplifiers

Sensor / Switch Amplifiers
  List Price (ex VAT): £159.98  
  In stock  
  Order Code: KCD2SREX1LB  
  Manufacturer Code: 70112151  
     

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Product details


Intrinsic safety & signal conditioning

Switch amplifier - 12.5mm


This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.

The proximity sensor or switch controls a form A normally open relay contact for the safe area load. The normal output state can be reversed using switch S1. Switch S2 allows output II to be switched between a signal output and an error message output. Switch S3 enables or disables line fault detection of the field circuit.

During an error condition, relays revert to their de-energized state and LEDs indicate the fault according to NAMUR NE44.

A unique collective error messaging feature is available when used with the Power Rail system.

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.

Technical specification
Supply voltage:19-30V d.c.
Power consumption:≤500mW
No. of channels:1
Input/output:Digital input
Output:
 Miniumum switch current:2mA/24V d.c.
 Energized/de-energized delay:≤20ms/≤20ms
 Mechanical life:10⁷ switching cycles
 Output I:Signal, relay
 Output II:Signal or error message, relay
Input:
 Rated values:acc. to EN 60947-5-6 (NAMUR)
 Open circuit voltage:Approx. 10V d.c.
 Short circuit voltage:Approx. 8mA
 Switching point:1.2-2.1mA
 Switching hysteresis:Approx. 0.2mA
 Line fault detection:Breakage I ≤0.1mA
Short-circuit I ≥6.5mA
 Pulse/pause ratio:≥20ms/≥20ms
Ambient temperature:-20 to +60°C
Protection rating:IP20
Mounting:35mm DIN rail or panel mount
Dimensions:w12.5 x h114 x d119mm

Features:
  • 12.5mm slimline housing
  • 3 port galvanic isolation
  • Single-channel isolated barrier
  • 24V d.c. 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)
  • Up to SIL2 acc. to IEC 61508
  • DIN rail/power rail solutions
  • Removable terminals reduce maintenance time
  • Fault detection and local indication


































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