Product description:

• For installation at LPZ 0 -1 or higher.
• Protect low voltage equipment from surge damages.
• Applied in pluggable SPD Class II (Class C) for TT and TN power supply system.
• Designed according to IEC 61643-1 / GB 18802.1.

 
Main characteristics:

• Small volume, pluggable.
• Quick response.
• Double thermal disconnector devices, providing reliable protection.
• Multifunctional terminal for connecting conductors and bus bars.
• Green window will change when fault occurs and also provide remote alarm control contact at the same time.
• Durable housing.
• Simple installation.
• Provide reliable surge protection.

 
Parameters:

• Type: BT PCM TT1+1 275 RM.
• Art. number: 810 803.
• Rated voltage (maximum continuous voltage) Uc: 275V~ (L-N) 255V~ (N-PE).
• Lightning impulse current (10/350µs) Iimp: 20kA (N-PE).
• Nominal discharge current (8/20µs) In: 20KA (L-N) 40kA (N-PE).
• Maximum discharge current (8/20µs) Imax: 40kA (L-N) 65kA (N-PE).
• Voltage protection level Up: ≤1.25kV (L-N).  
• Response time tA: ≤25ns (L-N).
• Maximum back up fuse: 125AgL/gG.
• Operating temperature range Tu: -40°C~+80°C.
• Cross-sectional area: 25mm2 solid/35mm2 flexible.
• Mounting on: 35mm DIN rail.
• Enclosure material: purple (module)/light gray (base) thermoplastic, UL94-V0.
• Dimension: 2 mods.
• Test standards: YD/T 1235.1; GB 18802.1; IEC 61643-1.
• Certification: CE (LVD, EMC).
• Type of remote signaling capacity: switching contact.
• Switching capacity: AC:250V/0.5A;DC:250V/0.1A;125V/0.2A;75V/0.5A.
• Cross sectional area for remote signaling contact: maximum 1.5mm solid.