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BVT KKS ALD 75 Surge Arrester
Brand: DEHN, IncEnergy-coordinated combined lightning current and surge arrester for protecting the rectifier in the protective circuit (red colour).
Plug-in remote signaling contact (break contact) indicates overload (thermal monitoring of the varistors).
Installation into steel-sheet enclosure recommended.
A low impulse sparkover voltage is achieved by capacitive control.
Specifications
Brand
Approvals & Certifications
- GOST
Approvals & Certifications
- IEC 61643-21, EN 61643-21
Capacitance
- Capacitance Line-Line & Line-PG: ≤ 2 NF
Connectors
- Input/Output: Screw
Current
- A2 Total Alternating Current withstand Capability: 20 A
- C2 Nominal Discharge Current (8/20 µs) Per Line: 20 KA
- C2 Total Nominal Discharge Current (8/20 µs): 40 KA
- D1 Lightning Impulse Current (10/350 µs) Per Line: 3.5 KA
- D1 Total Lightning Impulse Current (10/350 µs): 7 KA
- Nominal Current: 12 A
Electrical Connectors
- Cross-Sectional Area for Remote Signalling Terminal: Max.
- Cross-Sectional Area: Flexible (0.5 to 4 mm²)
- Cross-Sectional Area: Solid (0.5 to 6 mm²)
- Earthing Via: Screw Terminal
Electrical Contacts
- Typical of Remote Signalling Contact: Break 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
Frequency
- Cut-Off Frequency Line-Line: 1 MHz
Mounting
- 1.378" (35 mm) DIN Rails According to EN 60715
Operating Temperature
- -40° to 80° C (-40° to 176° F)
Operating Voltages
- Maximum
Torque
- Tightening Torque (Terminal): 0.8 Nm
Voltage
- Nominal Voltage: 70 V
- Voltage Protection Level Line-Line & Line-PG for Iᵢₘₚ D1 (Uₚ): ≤ 400 V
- Voltage Protection Level Line-Line at [1 kV/µs C3 (Uₚ)] & Line-PG at [1 kV/µs PG (Uₚ)]: ≤ 350 V