Pepperl+Fuchs - KHA6-SH-Ex1 - Isolated Barrier Switch Amplifier
The Pepperl+Fuchs KHA6-SH-Ex1 is a single-channel isolated barrier switch amplifier designed for intrinsic safety applications. It transfers digital signals from hazardous areas to safe areas, supporting inputs from approved dry contacts or SN/S1N sensors. The device features relay contact outputs and fault indication, ensuring reliable signal transmission and safety monitoring in industrial environments.
Key Features:
• Intrinsic Safety: Suitable for use in hazardous areas, providing safe signal transfer to control systems.
• Relay Contact Output: Offers reliable signal output for controlling downstream devices.
• Fault Indication Output: Monitors and indicates line faults such as lead breakage or short circuits.
• Line Fault Detection (LFD): Continuously monitors the control circuit for lead breakage (LB) and short circuit (SC) conditions.
• Safety Compliance: Achieves up to SIL 3 according to IEC/EN 61508 and up to PL d per EN/ISO 13849 standards.
Technical Specifications:
• Signal Type: Digital Input
• Supply Voltage: 85 to 253 V AC, 45 to 65 Hz
• Power Consumption: Max. 2.3 W
• Input Connection: Terminals 10+ and 12-
• Open Circuit Voltage/Short-Circuit Current: Approximately 8.4 V DC / 11.7 mA
• Lead Resistance: ≤ 50 Ω
• Switching Point:
• Relay de-energized: I < 2.1 mA and I > 5.9 mA
• Relay energized: 2.8 mA < I < 5.3 mA
• Response Delay: ≤ 1 ms
• Outputs:
• Output I: Relay, signal; Contact loading: 253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
• Output II: Relay, signal; Contact loading: 253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
• Output III: Electronic output, passive, fault signal; Rated voltage: 10 to 30 V DC
• Switching Frequency: Up to 5 Hz
• Indicators: LEDs for status indication
• Ambient Temperature Range: -20 to +60 °C (-4 to +140 °F)
• Degree of Protection: IP20
• Mounting: 35 mm DIN rail according to EN 60715:2001
• Dimensions (W x H x D): 40 x 93 x 115 mm (1.6 x 3.7 x 4.5 inches)
• Weight: Approximately 280 grams