
The KCD2-SR-Ex2 is a 2-channel isolated barrier designed for intrinsic safety applications in hazardous areas. It transfers digital signals from NAMUR proximity sensors or dry contacts in the hazardous area to the non-hazardous area, controlling relay contact outputs on the control side. The device features integrated line fault detection with LED indicators that follow NAMUR NE 44 standards, detecting wire breakage and short-circuits. It achieves up to SIL 2 safety integrity level according to IEC/EN 61508, making it suitable for safety-critical applications. The compact housing width of 12.5 mm enables high-density installations on DIN rail systems, with power supplied via a 24 V DC Power Rail or direct terminals. Configurable via internal switches for operation mode and fault detection settings, it provides galvanically isolated signal transmission between field devices and control systems in classified Division 1/2 and Zone 0/1/2 locations.
Item Details
- Brand Name: Pepperl+Fuchs
- Manufacturer: Pepperl+Fuchs
- Item Type Name: Switch Amplifier / Isolated Barrier
- Product Family / Series: K-System Isolated Barriers
- Manufacturer Part Number: 70112153
Product Specifications
- number_of_channels: 2
- signal_type: Digital Input
- supply_voltage: 19-30 V DC
- supply_connection: Power Rail or terminals 9+, 10-
- rated_current: ≤30 mA
- power_dissipation: ≤600 mW
- power_consumption: ≤600 mW
- voltage_ripple: ≤10%
- input_type: Dry contact or NAMUR
- input_connection: Terminals 1+, 2-; 3+, 4-
- open_circuit_voltage: ~10 V DC
- short_circuit_current: ~8 mA
- switching_point: 1.2-2.1 mA
- switching_hysteresis: ~0.2 mA
- line_fault_detection: Breakage I ≤ 0.1 mA, Short-circuit I ≥ 6.5 mA
- output_type: Relay contact
- safety_integrity_level: SIL 2 (SC 3)
- housing_width: 12.5 mm
- hazardous_area_rating: Zone 0, 1, 2 / Div. 1, 2
Additional Details
- Compliance Standards: IEC/EN 61508, EN 60947-5-6 (NAMUR)
- Led Indicators: Fault indication per NAMUR NE 44
- Mounting: DIN rail via Power Rail UPR-03
- Galvanic Isolation: Yes
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
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