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Installation & Operation Manual

Carrier NSA-A/ACS2, Installation & Operation Manual

The Carrier NSA-A/ACS2 Installation & Operation Manual is a comprehensive guide for setting up and using the product. This essential manual provides step-by-step instructions, troubleshooting tips, and safety information. Download this free manual from our website to ensure optimal functionality and seamless operation.

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Adjustable Current Switches

Installation and Operation

#NSA-A/ACS2, NSA-A/ASCS2, NSA-A/ASCS2-L

– 11/14/2019

Specifications subject to change without notice.

Catalog No. 11-808-743-01

Page

6

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Digital Circuit

Figure 5

Motor/Fan Control

Figure 6

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Summary of Contents for NSA-A/ACS2

Page 1: ...ng management system or PLC Applications Overload Conditions Underload Conditions Normal Operating Conditions Broken Belts Belt Slippage Locked Rotors Equipment Failure Fans Pumps Compressors Motors Ovens Industrial Equipment Lighting Status and Usage Electrical Load Status Local Alarms Strobes and Audible Alarms Preventative Maintenance Scheduling Part Numbers NSA A ACS2 NSA A ASCS2 NSA A ASCS2 L...

Page 2: ...t File E309723 CE RoHS2 WEEE Product Weight NSA A ACS2 0 216 lbs 0 097 kg NSA A ASCS2 0 270 lbs 0 123 kg NSA A ASCS2 L 0 280 lbs 0 127 kg Product Dimensions L x W x H Solid Core 2 760 70 11 mm x 3 343 84 92 mm x 1 050 26 67 mm Split Core 2 780 70 51 mm x 3 238 82 25 mm x 1 120 28 45 mm Response Time Model 0 50 Amps 0 60 Amps 0 75 Amps 1 0 Amps 1 5 Amps 10 Amps 20 Ampls NSA A ACS2 221 mS 144 mS 109...

Page 3: ...ly on the Red LED to determine whether power is present at the current switch At very low monitored input currents the Red LED may not light to indicate the current is above the trip point Installation Ensure all installations are in compliance with all national and local electrical codes Only qualified individuals that are familiar with codes standards and proper safety procedures for high voltag...

Page 4: ... the tongue on the base CAUTION Mating surfaces of the magnetic core are exposed when the sensor is open Electrical contact grease present on the cores to prevent corrosion can capture grit and dirt if care is not exercised Operation can be impaired if anything prevents good contact between pole pieces Visually check the mating parts of the core before closing the current sensor Figure 2 LED The R...

Page 5: ...urrent of 0 4 Amps flowing through the NSA A ACS2 Formula Example 0 25A 0 1A 2 5 1 3 5 which rounded up equals 4 loops Wiring Instructions Carrier recommends the use of a two conductor 16 to 22 AWG shielded cable or twisted pair copper wire only for all current switch applications A maximum wire length of less than 30 meters 98 4 feet should be used between the current switch and the Building Mana...

Page 6: ...Switches Installation and Operation NSA A ACS2 NSA A ASCS2 NSA A ASCS2 L 11 14 2019 Specifications subject to change without notice Catalog No 11 808 743 01 Page 6 of 7 Digital Circuit Figure 5 Motor Fan Control Figure 6 ...

Page 7: ...r part numbers NSA A ACS2 NSA A ASCS2 and NSA A ASCS2 L Normal Loads With power on turn the 15 turn adjustment potentiometer clockwise until the Red LED turns on and stop immediately Clockwise is referenced with the terminal block location on the right The adjustable current switch is now tripped The adjustable current switch Hysteresis Dead Band is 10 of the trip point typically Clockwise Decreas...

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