KCD2-SOT-Ex1.LB Isolated Barrier | Pepperl+Fuchs

Pepperl+Fuchs KCD2-SOT-Ex1.LB Switch Amplifier

The Pepperl+Fuchs KCD2-SOT-Ex1.LB is an isolated switch amplifier for hazardous areas. This 1-channel barrier interfaces NAMUR sensors with control systems. It provides two transistor outputs for signal splitting applications. The Pepperl+Fuchs KCD2-SOT-Ex1.LB offers safe operation in explosive atmospheres with ATEX certification.

Product Identification

• Manufacturer: Pepperl+Fuchs
• Model Number: KCD2-SOT-Ex1.LB switch amplifier
• Product Type: 1-Channel Isolated Barrier
• Primary Function: Digital input signal conditioning
• Safety Rating: SIL 2, SC 3 per IEC/EN 61508
• Certification: ATEX certified for hazardous areas
• Housing Width: 12.5 mm compact design

Power Supply Specifications

• Supply Voltage: 24 V DC nominal (19-30 V DC range)
• Connection: Power Rail or terminals 9+, 10-
• Rated Current: 20-15 mA typical consumption
• Power Dissipation: ≤ 700 mW maximum
• Ripple Tolerance: ≤ 10 % input ripple

Input Specifications

• Signal Type: Digital Input (NAMUR or dry contact)
• Connection: Terminals 1+, 2- (field side)
• NAMUR Values: 10 V DC / 8 mA per EN 60947-5-6
• Switching Point: 1.2-2.1 mA with 0.2 mA hysteresis
• Line Fault Detection: Breakage I ≤ 0.1 mA, short I ≥ 6.5 mA
• Pulse Requirements: Min. 100 µs pulse/pause ratio

Output Performance

• Output Channels: Two passive transistor outputs
• Connection: Output I: terminals 5,6; Output II: terminals 7,8
• Rated Voltage: 30 V DC maximum
• Rated Current: 50 mA per output
• Response Time: ≤ 200 µs fast switching
• 1-Signal Level: (External voltage) - 3V max at 50 mA
• 0-Signal Level: Blocked output (≤10 µA leakage)
• Switching Frequency: ≤ 5 kHz maximum

Safety & Isolation

• Safety Level: SIL 2, Systematic Capability SC 3
• Galvanic Isolation: Reinforced insulation 300 Veff
• Isolation Ratings: Input/Output: 300 Veff reinforced
• Hazardous Area: ATEX certified [Ex ia Ga] IIC
• Protection Degree: IP20 for indoor use

Configuration & Display

• Configuration: DIP switch settings
• Display Elements: LED status indicators
• Labeling: Front space for identification
• Operating Mode: Reversible operation possible
• Signal Splitting: 1 input to 2 outputs capability

Environmental Specifications

• Temperature Range: -20°C to +70°C standard
• Extended Range: Up to 70°C with derating
• Mounting: 35 mm DIN rail per EN 60715
• Dimensions: 12.5 x 119 x 114 mm (WxHxD)
• Weight: Approx. 100 grams

Certifications & Compliance

• ATEX Certificate: BASEEFA 13 ATEX 0080
• Marking: II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC
• EMC Directive: 2014/30/EU, EN 61326-1:2013
• Safety Standards: IEC 61010-1:2010 compliance

Installation Guidelines

• Mount on 35 mm DIN rail in appropriate enclosure
• Connect 24V DC power via Power Rail or terminals
• Wire NAMUR sensor or dry contact to input terminals
• Connect outputs to control system inputs
• Configure DIP switches for required operation mode
• Verify proper grounding for hazardous area installation

Frequently Asked Questions (FAQ)

What is the main purpose of this switch amplifier?

The Pepperl+Fuchs KCD2-SOT-Ex1.LB safely interfaces hazardous area sensors with control systems.

Can I use this with standard mechanical contacts?

Yes, it accepts both NAMUR sensors and dry contact inputs.

What does "signal splitter" function mean?

It can take one input signal and provide two identical output signals.

How does line fault detection work?

It detects open circuits (<0.1 mA) and short circuits (>6.5 mA) in field wiring.

What hazardous area classifications does it support?

ATEX Zone 0/1 for gas and Zone 20/21 for dust explosive atmospheres.

What configuration options are available?

DIP switches allow setting operating mode, output configuration, and fault behavior.

For technical specifications or to order the KCD2-SOT-Ex1.LB, email sale@etowonauto.com.

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