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NK Technologies AS1 Series AC Current Operated Switches, Self-Powered, SmartLED, 1 - 150A Setpoint Range for Fixed Core Units, 1.75 - 150A Setpoint Range for Split Core Units
'AS1' Series Current Operated Switches from NK Technologies combine a current transformer, signal conditioner and limit alarm into a single package for use in status monitoring or proof of operation applications. Offering an extended setpoint range of 1-150A and universal, solid-state outputs, the selfpowered AS1 can be tailored to provide accurate and dependable digital indication of over-current conditions across a broad range of applications. Available in solid-core enclosure styles or in a split-core case to maximize ease of installation.
| Power Supply | None—Self-powered | ||
| Output | Magnetically isolated solid-state switch | ||
| Output Rating | • N.O. Version: 0.15 A @ 240 VAC or VDC • N.C. Version: 0.2 A @ 135 VAC or VDC • Not polarity sensitive | ||
| Off-State Leakage | <10 μA | ||
| Response Time | 120 ms | ||
| Setpoint Range | • Solid-core: 1–150 A (adjustable) • Split-core: 1.75–150 A (adjustable) | ||
| Hysteresis | 5% of setpoint | ||
| Overload | MODEL | 6 SEC | 1 SEC |
| • -GO (NOU) • -GO (NCU) • All other | • 500 A • 400 A • 400 A | • 1000 A • 1000 A • 1000 A | |
| Isolation Voltage | UL listed to 1270 VAC, tested to 5000 VAC | ||
| Frequency Range | 6–100 Hz | ||
| Sensing Aperture | • -FF Case: 0.55” (14 mm) dia. • -FT Case: 0.74” (19 mm) dia. • -SP Case: 0.85” (21.6 mm) sq. | ||
| 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 | ||
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