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DV M TNC 255 FM Current & Surge Arrester
Brand: DEHN, IncModular combined lightning current and surge arrester for TN-C systems.
Features- Prewired combined type 1 and type 2 spark-gap-based lightning current and surge arrester consisting of a base part and plug-in protection modules
- Maximum system availability due to RADAX Flow follow current limitation
- Capable of protecting terminal equipment
Specifications
Brand
Approvals & Certifications
- CE
- KEMA
- UL
- VDE
- VDS
Approvals & Certifications
- SPD According to EN 61643-11 (Typical 1 + Typical 2)
- SPD According to IEC 61643-11 (Class I + Class II)
Current
- Follow Current Extinguishing Capability AC: 50 KAᵣₘₛ
- Follow Current Limitation/Selectivity: No Tripping of a 20 A GL/gG Fuse up to 50 KAᵣₘₛ (Prospective)
- Lightning Impulse Current (10/350 µs) [L1+L2+L3-PEN]: 75 KA (Specific Energy [L1+L2+L3-PEN] (W/R): 1.40 MJ/ohms)
- Lightning Impulse Current (10/350 µs) [L-PEN]: 25 KA (Specific Energy [L-PEN] (W/R): 156.25 KJ/ohms)
- Limitation/Extinction of Mains Follow Current: 0-100 KAᵣₘₛ (220 KAₚₑₐₖ)
- Maximum
- Nominal Discharge Current (8/20 µs) [L-PEN]/[L1+L2+L3+PEN]: 25 KA/75 KA
Electrical Connectors
- Cross-Sectional Area (L1, L1', L2, L2', L3, L3', PEN, Ground]: Min. 10 mm² Solid/Flexible
- Cross-Sectional Area [L1', L2', L3', Ground]: Max.
- Cross-Sectional Area [L1, L2, L3, PEN]: Max.
- Cross-Sectional Area for Remote Signalling Terminal: Max.
Electrical Contacts
- Typical of Remote Signalling Contact: Changeover Contact
Electrical Rating
- AC Switching Capacity: 250 V / 0.5 A
- DC Switching Capacity: 125 V / 0.2 A
- DC Switching Capacity: 250 V / 0.1 A
- DC Switching Capacity: 75 V / 0.5 A
Enclosure, Body Material
- Thermoplastic
Environmental Protection
- IP20
Indication
- Fault Indication / Operating State: Red/Green
Mounting
- 1.37” (35 mm) DIN Rails According to EN 60715
Operating Temperature
- Parallel: -40° to 80° C (-40° to 176° F)
- Series: -40° to 60° C (-40° to 140° F)
Operating Voltages
- Maximum
Response Time
- ≤ 100 Nanoseconds
Voltage
- Nominal Voltage: 230 Vac (50/60 Hz)
- Nominal Voltage: 400 Vac (50/60 Hz)
- Temporary Overvoltage (TOV) - Characteristic: 440 V / 120 minutes - Withstand
- Voltage Protection Level [L-PE] / [N-PE]: ≤ 1.5 kV