P&F KCD2-SR-Ex2 Switch Amplifier (216720)

The Pepperl Fuchs KCD2 SR Ex2 is a 2-channel switch amplifier for transferring digital signals from hazardous zones to safe areas. Supporting NAMUR or dry contact inputs, the device outputs isolated relay contacts and includes line fault detection (LFD), DIP switch configuration, and dual-channel support. With a narrow 12.5 mm DIN rail housing and SIL 2 safety compliance, it’s ideal for space-constrained safety systems and process control environments.

Technical Specifications

• Model: KCD2-SR-Ex2
• Type: Intrinsically Safe Switch Amplifier
• Input Type: NAMUR sensor or dry contact
• Output Type: Relay contact
• Channels: 2
• Mounting: 35 mm DIN rail (EN 60715)

Input Specifications

• Input Terminals: 1+, 2- and 3+, 4-
• Standard: EN 60947-5-6 (NAMUR)
• Open Circuit Voltage: Approx. 8 V DC
• Short-Circuit Current: Approx. 8 mA
• Switching Point: 1.2 … 2.1 mA
• Hysteresis: Approx. 0.2 mA
• Line Fault Detection: Break ≤ 0.1 mA, Short ≥ 6.5 mA
• Pulse/Pause Ratio: Min. 20 ms

Output Specifications

• Output Terminals: 5, 6 and 7, 8
• Output Signal: Relay contact
• Contact Load:
  • 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)
• Min. Switching Current: 2 mA @ 24 V DC
• Switching Frequency: ≤ 10 Hz
• Response Time: ≤ 20 ms (energized/de-energized)
• Mechanical Life: 10⁷ switching cycles

Power & Configuration

• Supply Voltage: 19 … 30 V DC
• Power Source: Power Rail or terminals 9+, 10-
• Rated Current: ≤ 46 mA
• Power Dissipation: ≤ 900 mW
• Configuration: DIP switches
• Visual Indicators: LEDs (NAMUR NE44 compliant)

Galvanic Isolation

• Input/Output: Reinforced (300 Veff)
• Input/Power Supply: Reinforced (300 Veff)
• Output/Power Supply: Reinforced (300 Veff)
• Output/Output: Reinforced (300 Veff)

Environmental & Mechanical

• Operating Temperature: -40 … 70 °C
• Degree of Protection: IP20
• Connection: Screw terminals
• Dimensions: 12.5 x 119 x 114 mm (W x H x D)
• Weight: Approx. 100 g

Certifications & Safety

• Safety Integrity Level: SIL 2 (SC 3) per IEC/EN 61508
• ATEX 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
• IECEx Marking:
  • Ex ec nC [ia Ga] IIC T4 Gc
  • [Ex ia Da] IIIC
  • [Ex ia Ma] I
• Certificates: BASEEFA 06 ATEX 0092 X, IECEx BAS 06.0025 X
• Max Safe Voltage (Um): 253 V AC (Input/Output), 40 V DC (fault output)

Key Features & Benefits

✅ 2-Channel NAMUR Relay Output: Ideal for dual-signal applications

✅ Line Fault Detection (LFD): Open and short circuit monitoring

✅ Compact DIN Housing: 12.5 mm width saves space

✅ SIL 2 Certified: Reliable for safety-critical control loops

✅ Wide Temperature Range: Operates in extreme industrial environments

📦 Buy Pepperl+Fuchs KCD2-SR-Ex2 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable KCD2-SR-Ex2 prices. Fast switching relay outputs and high-grade isolation make it perfect for industrial applications.

In stock now and available with 2–3 days delivery.

Contact us to place your order today.