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NK Technologies ASX Series AC Current Operated Switches with Time Delay, Self-Powered, SmartLED, Jumper Selectable Ranges, 1.5 - 12 A, 12 - 55 A & 50 - 200 A Setpoint Range
The 'ASX' Series from NK Technologies is a high-performance current-operated switch with field-adjustable time delay to help minimize nuisance trips during start-up and operation. Designed for motor status applications where setpoint accuracy and repeatability are critical, the ASX offers a linear setpoint characteristic and constant hysteresis. Standard features include self-powering, jumper-selectable ranges and a choice of outputs and cases.
Power Supply | None—Self-powered |
Output | Isolated solid-state relay |
Output Rating | • NOAC/NCAC: 1 A @ 240 VAC • NOU: 0.15 A @ 240 VAC or VDC • NCU: 0.2 A @ 135 VAC or VDC |
Off-state Leakage | NOU, NCU & NOAC versions: <10 micro A NCAC versions: 2.5 mA |
Response Time | Adjustable 0.2 to 15 seconds |
Setpoint Range | Jumper-selectable: 1.5–12 A, 12–55 A, 50–200 A |
Hysteresis | 5% (constant) |
Overload | • 1.5–12 A range: 600 A max. • 12–55 A range: 800 A max. • 50–200 A range: 1200 A max. |
Isolation Voltage | UL listed to 1270 VAC |
Frequency Range | 50–100 Hz |
Case | UL94 V0 Flammability Rated |
Environmental | -4 to 122°F (-20 to 50°C) 0–95% RH, non-condensing |
Listings | UL 508 Industrial Control Equipment (USA & Canada)*, CE (pending) |
*Consult factory for UL listed models.
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Motor Protection
High Inrush or Temporary Overload Current