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DV M TT 2P 255 FM Current & Surge Arrester
Brand: DEHN, IncModular combined lightning current and surge arrester for single-phase TT and TN systems ("1+1" circuit).
Features- Prewired spark-gap-based type 1 and type 2 combined 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
- [Lightning Impulse Current (10/350 µs) & Nominal Discharge Current (8/20 µs)] [L-N] / [N-PE]: 25 KA / 50 KA (Specific Energy [L-N] / [N-PE] (W/R): 156.25 KJ / ohms / 625 KJ / ohms)
- Follow Current Extinguishing Capability [L-N] / [N-PE]: 50 KAᵣₘₛ / 100 Aᵣₘₛ
- Follow Current Limitation/Selectivity: No Tripping of a 20 A GL/gG Fuse up to 50 KAᵣₘₛ (Prospective)
- Lightning Impulse Current (10/350 µs) [L+N-PE]: 50 KA (Specific Energy [L+N-PE] (W/R): 625 KJ/ohms)
- Limitation/Extinction of Mains Follow Current: 0-100 KAᵣₘₛ (220 KAₚₑₐₖ)
- Maximum
Electrical Connectors
- Cross-Sectional Area (L, L', N, N', PE, Ground]: Min. 10 mm² Solid/Flexible
- Cross-Sectional Area [L', N', Ground]: Max.
- Cross-Sectional Area [L, N, PE]: 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)
- Temporary Overvoltage (TOV) [L-N] - Characteristic: 440 V / 120 minutes - Withstand
- Temporary Overvoltage (TOV) [N-PE] - Characteristic: 1,200 V / 200 milliseconds - Withstand
- Voltage Protection Level [L-N] / [N-PE]: ≤ 1.5 kV