Pepperl+Fuchs KFA6-SR2-EX1.W | 1-Channel Relay | SIL2 | Ex ia | DIN Rail

Pepperl+Fuchs KFA6-SR2-EX1.W | Isolated Signal Relay, 1-Channel, Ex ia, SIL2, DIN Rail

Overview:

The Pepperl+Fuchs KFA6-SR2-EX1.W (Part No. 103374) is a 1-channel isolated signal relay designed for intrinsically safe input circuits (Ex ia) and dry contact or NAMUR sensors in hazardous areas. With SIL2 functional safety compliance, DIN rail mounting, and rugged design, it ensures reliable switching and isolation between hazardous and safe zones.

Key Features:

• Input Type: NAMUR sensor or dry contact

• Output: 1 SPDT relay contact

• Mounting Style: DIN rail (35 mm)

• Power Supply: 20–30 VDC

• Output Rating: Up to 250 V AC / 2 A

• Signal Isolation: 3-way isolation (input/output/power)

• Safety Compliance: SIL2 (IEC 61508)

• Ex Protection: Ex ia IIC (intrinsically safe)

• LED Indicators: Status and fault LEDs

• Housing Width: 12.5 mm

Technical Specifications:

• Model Number: KFA6-SR2-EX1.W

• Part Number: 103374

• Input Signal: per IEC 60947-5-6 (NAMUR)

• Response Time: ~10 ms

• Voltage Drop: Low drop for loop integrity

• Material – Housing: Polyamide

• Operating Temp: -20°C to +60°C

• Dimensions (W x H x D): 12.5 x 119 x 114.5 mm

• Weight: Approx. 150 g

Applications:

• Process Control: Relay interface from hazardous field signals

• Oil & Gas: Safe signal routing from Ex areas

• Chemical Plants: Intrinsically safe relay switching

• Water Treatment: Signal conditioning from remote sensors

• SIL2 Safety Systems: Functional safety-compliant control loops

Why Choose the KFA6-SR2-EX1.W?

✅ Ex ia certified for hazardous locations
✅ Supports NAMUR or dry contact inputs
✅ SIL2-rated for high-reliability safety systems
✅ Compact 12.5 mm housing saves space on DIN rails
✅ Pepperl+Fuchs quality for signal isolation and control

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Available and ships worldwide. 

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply