technoswitch ST021DI AC Electric System Surge Protective Device Instruction Manual
- June 4, 2024
- technoswitch
Table of Contents
technoswitch ST021DI AC Electric System Surge Protective Device
Power supply ST021DI
230 Vac, 50-60 Hz, ST381DI three phase, 50-60 Hz
Technology
- ST021DI: 1 P+NPE
- ST381 DI: 3P+NPE
- Long life device
- DIN rail mount modular case
- SPD class T2
- Max cables section 25 mm2
- Response time s; 25ns
- UL94 V-0 plastic case
- Replaceable cartridges
- Cartridge status visual indicator red: replace
DIMENSION / SIZE
ST021DI
ST381DI
| CODICE| LIVELLO DI PROTEZIONE L- N (Up)| TENSIONE CONTINUATIVA MASSIMA L-N (Uc)| CORRENTE DI SCARICA MASSIMA L-N lmax(8/20)| CORRENTE DI SCARICA NOMINALE L-N In (8/20)| LIVELLO DI PROTEZIONE N – PE (Up)| TENSIONE CONTINUATIVA
MASSIMA N-PE (Uc)
| CORRENTE DI SCARICA
MASSIMA N-PE lmax(8/20)
| CORRENTE DI SCARICA NOMINALE N-PE ln(8/20)| MODULO| PESO
---|---|---|---|---|---|---|---|---|---|---|---
CODE| L-N
PROTECTION LEVEL (Up)
| L – N MAX CONTINUOS VOLTAGE (Uc)| L-N MAX DISCHARGE CURRENT lmax(8/20)| L-N
NOMINAL DISCHARGE CURRENT ln(8/20)| N – PE PROTECTION LEVEL (Up)| N-PE MAX
CONTINUOUS VOLTAGE (Uc)| N-PE MAX DISCHARGE CURRENT lmax(8/20)| N-PE NOMINAL
DISCHARGE CURRENT ln(8/20)| MODULES| WEIGHT
| kV| V| kA| kA| kV| V| kA| kA|
DIN| g
ST021DI| <1,2| 320| 20| 10| 1,5| 255| 20| 10| 2| 210
ST021CL| L-N / L-N surge protector cartridge| 55
ST021CN| N-PE / N-PE surge protector cartridge| 35
ST381DI| <1| 280| 25| 12,5| 1,5| 255| 40| 20| 4| 380
| ST381CL| L-N surge protector cartridge| 35
ST381CN| N-PE surge protector cartridge| 35
INSTALLATION
- Disconnect the power
- Install the device on DIN 35 rail placing the device’s upper recess on the top edge of the DIN.
- Push down the device until the device’s lower recess fits into the DIN.
- Connect the device to the electrical system respecting max cable section and wiring diagram.
CARTRIDGE REPLACEMENT
- Disconnect the power
- Press the top and bottom ends of the cartridge to be replaced and pull it out of the device.
- Install new cartridge.
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