The Phoenix Contact FLKM-50 (2281089) is a 50-position VARIOFACE interface module that bridges control-level components—such as PLC I/O cards—to field-level devices via IDC/FLK connector and screw terminal connections. The module distributes signals across 16 channels with rated voltage limits of 30 V AC or 60 V DC and current handling of 1 A per branch. It mounts directly to DIN rail (NS 32 or NS 35/7.5) in any orientation and operates reliably across -20 °C to 50 °C. The screw terminals accept solid conductors from 0.2 mm² to 4 mm² (flexible: 0.2 mm² to 2.5 mm²) and feature M3 threads with 8 mm stripping length.
Technical Specifications
• Nominal Voltage: ≤ 30 V AC / ≤ 60 V DC
• Current per Branch: 1 A maximum
• Insulation Voltage: 63 V / 500 V (50 Hz, 1 min.)
• Surge Voltage Rating: 0.6 kV (1.2/50 μs)
• Test Voltage: 500 V (50 Hz, 1 min.)
• Insulation Class: Functional insulation, Overvoltage Category II, Pollution Degree 2
• Connector (Control Level): IDC/FLK pin strip, 50-position, 2.54 mm pitch (IEC 60603-13)
• Connector (Field Level): Screw connection, M3 thread
• Conductor Range: 0.2–4 mm² (solid), 0.2–2.5 mm² (flexible), AWG 24–12
• Insertion/Withdrawal Cycles: > 50
• Dimensions: 135 mm W × 77 mm H × 58 mm D
• Weight: 226 g
• Operating Temperature: -20 °C to 50 °C
• Storage Temperature: -20 °C to 70 °C
• Degree of Protection: IP00
• Color: Green (RAL 6021)
• Mounting: DIN rail (NS 32 or NS 35/7.5), any orientation
– Key Features
• 50-position flat-ribbon interface with proven IEC 60603-13 connectivity
• 16-channel signal distribution architecture
• M3 screw terminals rated for 0.2–4 mm² conductors
• Functional insulation with 500 V test voltage compliance
• Low current envelope (1 A per branch) suitable for signal conditioning
• Wide conductor acceptance (AWG 24–12) eliminates sizing constraints
– Typical Applications
• SIEMENS S7-400 PLC analog and digital I/O signal distribution
• Industrial control cabinet signal routing and organization
• Field device interfacing in VARIOFACE ecosystems
– Compatibility & Integration
Specifically rated for SIEMENS S7-400 I/O cards including 6ES7431 and 6ES7432 series analog input and output modules.
