- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Alarm + pre-alarm or alarm function with 2 SPDT contact
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Automatic restart (up to 10 attempts) in case of transient earth fault
- “No trip” TEST (local, without output relay tripping)
- Sealable front frame
Delat RD4B2 – Residual current device
- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Alarm + pre-alarm or alarm function with 2 SPDT contact
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Automatic restart (up to 10 attempts) in case of transient earth fault
- “No trip” TEST (local, without output relay tripping)
- Sealable front frame
 Datenblatt
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- Instantaneous (t = 0) at I Δn 30mA
- Selectable set point 30mA…30A (19 ranges)
- Instantaneous display as percentage of I Δn
- Alarm + pre-alarm or alarm function with 2 SPDT contact
- Field-selectable negative or positive security (fail safe)
- Automatic permanent test
- Automatic restart (up to 10 attempts) in case of transient earth fault
- “No trip” TEST (local, without output relay tripping)
- Sealable front frame
Beratung unter 03303 / 50 40 66
Technische Beratung zum Produkt
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