Undervoltage relay
Description
0223313
Monitoring technique
Undervoltage relay IK 9171, IL 9171, SK 9171, SL 9171, 3-phase
varimeter
IK 9171
SK 9171
• According to IEC/EN 60 255, DIN VDE 0435-303 • Devices available in 2 enclosure versions:
I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
S-model: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
• Monitoring of undervoltage in 3-phase system • Also for single phase • Without auxiliary supply • Optionally for 3p3w systems • LED indicator for state of output relay • Independent of phase sequence • 1 or 2 changeover contacts • Optionally fixed or settable response value • As option with phase sequence detection • Optionally with or without N • Optionally with off-delay t1 • Opionally with on delay t2 • Width:
IK 9171, SK 9171: 17,5 mm IL 9171, SL 9171: 35 mm
Approvals and marking
IL 9171 Function diagram
Circu...
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