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Safety relay VersiSafe
3 NO1 NCtime delay

safety relay
safety relay
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Characteristics

Measured/monitored value
safety
Contact configuration
3 NO, 1 NC
Other characteristics
time delay, SIL, DIN rail

Description

Features •SIL 3 according to DIN EN 61508 and DIN EN 61511 •SIL CL 3 according to EN 62061 •Performance Level e according to DIN EN ISO 13849-1 •Safety category 4 according to DIN EN 954-1 •no external initiators necessary •independant of direction •broken wire detection •positive guided safety contacts: 3 NO contacts, 1 NC contact for AC 250V •adjustable voltage setting •adjustable standstill time delay •LED indicators for standstill, event of line breakage and operation voltage •suitable for operating with inverters •width 45 mm •nominal motor voltage up to 690V Functions •safe standstill detection on three- and single-phase motors •detection of standstill via monitoring of remanence voltage •redundant measurement via two independent channels •adaptable to various motor types and applications Safety rated data •values according to EN ISO 13849-1: •safety category: 4 •performance level: e •MTTFd: 93a •DCavg: 99,0% •dop: 365 days/year •hop: 24 hours/day •tZyklus: 28,8E+0,3s/zyklus = 1 /8 hours •values according to IEC EN 62061 / IEC EN 61508: •SIL CL: 3 IEC EN 62061 •SIL 3 IEC EN 61508 •HFT: 1 (Hardware-Failure-Tolerance) •DCavg: 99,0% •SFF 99,7% •PFHD: 4,10E-10 h-1 Preferred application areas •Reliable detection of the stationary condition for: •safety circuits according per IEC/EN 60204 in systems with hazardous machine parts (e.g. for releasing protective devices) •prevention of machine damage (unexpected start-up)

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