KCD2-STC-EX1

KCD2-STC-EX1 | SMART Transmitter Power Supply

• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• Input for 2-wire SMART transmitters and current sources
• Output for 4 mA ... 20 mA or 1 V ... 5 V
• Housing width: 12.5 mm
• Up to SIL 2 (SC 3) acc. to IEC/EN 61508

General Information

• Safety Integrity Level (SIL): SIL 2
• Systematic capability (SC): SC 3

Specifications

Supply:

• Connection: Power Rail or terminals 9+, 10-
• Rated voltage (Ur): 19 ... 30 V DC
• Ripple: ≤ 10 %
• Rated current (Ir): ≤ 45 mA at 24 V and 20 mA source mode output
• Power dissipation: ≤ 800 mW
• Power consumption: ≤ 1.1 W

Input:

• Connection side: Field side
• Connection terminals: 1+, 2-; 3+, 4-
• Input signal: 4 ... 20 mA limited to approx. 26 mA
• Open circuit voltage/short-circuit current: 22 V / 26 mA (terminals 1+, 2-)
• Voltage drop: approx. 5 V (terminals 3+, 4-)
• Available voltage: ≥ 15 V at 20 mA; ≥ 18 V at 4 mA

Output:

• Connection side: Control side
• Connection terminals: 5-, 6+; 5-, 8+ for HART resistor
• Load: 0 ... 350 Ω (source mode)
• Output signal:
  • Source mode: 4 ... 20 mA or 1 ... 5 V (internal resistor: 250 Ω, 0.1 %)
  • Sink mode: 4 ... 20 mA, operating voltage 10 ... 30 V
• Ripple: 20 mV rms

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