c) 4 Wire Data Protocal unit Type I/II
c) Data sheet – 4 wire data protocol
VM-RS 485 has been designed to protect all versions of RS 485. It can be used for protection of RS 422 and V.11 protocol as well.
- Category IEC / EN: D1/C1/C2/C3
- Mode of protection: Longitudinal, Transverse
- Coarse Protection: 2 x 3 terminal GDT, 2 x 2 terminal GDT
- Nominal operating voltage: Un: 5VDC
- Max. operating voltage: Uc: 6VDC
- Serial resistance: 1.7 – 1.9Ω per line
- Frequency range: < 1Mhz
- Surge Discharge Ratings: In: 20kA; Iimp 10/350 : 2.5kA
- Series load current: 500mA
- Enclosure: DIN 43880 2TE, DIN rail mount
- Terminals: Stranded 2 x 2.5mm2
- Housing: 16 terminal compact design
- Complies with: IEC/EN 61643-21