Pepperl Fuchs KCD2-SR-Ex1.LB Switch Amplifier (216712)

The P&F KCD2 SR Ex1 LB from Pepperl+Fuchs is a compact, intrinsically safe switch amplifier designed to transfer digital signals from NAMUR sensors or dry contacts in hazardous areas to a safe area. Featuring one input and two relay outputs, it supports line fault detection (LFD), reverse mode switching, and fault relay indication. Built to meet SIL 2 (SC 3) safety standards and engineered for high-density DIN rail installations.

Technical Specifications

• Model: KCD2-SR-Ex1.LB
• Type: Intrinsically Safe Switch Amplifier
• Input Type: NAMUR sensor or dry contact
• Output Type: 2 relay contacts (signal and fault)
• Channels: 1
• Mounting: 35 mm DIN rail (EN 60715)

Input Specifications

• Input Terminals: 1+, 2-
• 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 (signal); 7, 8 (fault relay or second signal)
• Contact Type: Relay
• 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: ≤ 37 mA
• Power Dissipation: ≤ 750 mW
• Configuration: DIP switches
• Visual Indicators: LEDs (per NAMUR NE44)

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

✅ Relay Output. Provides galvanically isolated relay switching

✅ Line Fault Detection. For both open and short circuit states

✅ Signal Splitter Function. One input can trigger two separate outputs

✅ SIL 2 Certified. Reliable for safety-critical applications

✅ Wide Temperature Range. Operates down to -40 °C

📦 Buy Pepperl+Fuchs KCD2-SR-Ex1.LB from Drive Outlet Megastore

Deploy the trusted Pepperl Fuchs KCD2 SR Ex1 LB in your hazardous area systems for safe, isolated switching with dual relay output and fault indication.

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

Contact us to place your order today.