Overview
The Phoenix Contact FLT-PLUS CTRL-1.5/I is a Type 1/Class I combined lightning current and surge arrester engineered for robust electrical system protection. This arc chopping spark gap arrester features ignition electronics and quenching plates for high mains follow-through current quenching capacity in a 1-channel configuration. With a protection level of 1.5 kV, this unit is suitable for industrial control panels, telecommunications equipment, and power distribution systems requiring Type 1+2 dual-stage protection against lightning and transient surges.
Key Features
- Rated for Uc 350 V AC with Up 1.5 kV protection against voltage spikes up to 50 kA
- Arc chopping spark gap with integrated ignition electronics for fast response
- 50 kA nominal discharge current (In) and 500 A capacity
- Compact 35 mm (2 DIN) housing width for standard DIN rail mounting
- Type 1/Class I lightning current arrester with mains follow-through current management
Technical Specifications
Key electrical and physical parameters for the FLT-PLUS CTRL-1.5/I:
- Rated Continuous Voltage (Uc): 350 V AC
- Protection Level (Up): 1.5 kV
- Nominal Discharge Current (In): 50 kA
- Surge Current Capacity: 500 A
- Impulse Current (Iimp): 50 kA
- Housing Width: 35 mm (2 DIN divisions)
- IP Rating: IP20 (protection against solid objects ≥12.5 mm)
- Weight: 510 g
- Certification: GL/GG, I/B/T1 class
Typical Applications
The Phoenix Contact FLT-PLUS CTRL-1.5/I is deployed in environments where lightning and surge protection is critical:
- Industrial control panels and PLC systems
- Power distribution cabinets and switchgear
- Telecommunications and signal line protection
- Factory automation systems requiring dual-stage surge suppression
- Building management and HVAC control circuits
- Renewable energy installations (wind, solar) with exposed electrical lines
Compatibility & Replacements
Compatible With
- DIN rail mounting systems (35 mm rail)
- AC power distribution circuits up to 350 V
- IEC/EN surge protection standards (Type 1+2 arrester classification)
- Industrial control cabinets (Phoenix Contact and third-party systems)
- Single-phase power lines requiring Class I lightning protection
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The FLT-PLUS CTRL-1.5/I is a specific model variant; ensure the “/I” designation and 1.5 kV rating match your application requirements when considering replacements.
Works With
- Phoenix Contact PLUGTRAB and terminal block systems
- Standard DIN rail mounting assemblies
- IEC 61643-1 Type 1+2 surge protection schemes
- VAL-MS 230 ST and similar modular surge suppression modules
- Industrial control platforms from Siemens, Allen-Bradley, Omron, and other major automation vendors
