NPFSR-K51D.F is 1NC and 1NO output safety relay, receiving DO signal, realizing reliable isolation control, and the field side supports up to 250V AC load circuit. It can be used for safety related applications of SIL3 and SC3 in accordance with IEC 61508 standard, and ESD in SIS. Main features: System loop detection support; Proof Test; Fail-safe technique; Triple redundancy; Replaceable fuse.
Power supply type:Loop supply
Voltage range:18 V ~ 32 V DC, Typical 24V DC
Current consumption:≤ 60mA/24V DC
Test pulse width:≤ 4ms
Cable resistance:≤ 15Ω
Input devices:Safety switch, DO signal
Number of contacts:1NC+1NO
Contact material:AgSnO2
Maximum Contact loading:5A/250V AC, 5A/24V DC
Fuse rating:Replaced fuse, ≤ 5A
Energized:≤ 50ms
De-energized delay:≤ 50ms
Switching frequency:≤ 10Hz
Power dissipation:≤ 1.4W/24V DC
Rated insulation voltage:250V AC
NPFSR-K52D
NPFSR-K51D.S
NPFSR-K51D.C
NPFSR-K51D.F
NPFSR-K2P31AMD
NPFSR-K2P22AMD
NPFSR-K51D.E