Eaton AN16SNO

Eaton AN16SNO belongs to the full-voltage Non-Reverse magnetic starter series. Featuring an open enclosure design and compact size, it is suitable for the direct starting of three-phase motors. Compliant with NEMA standards, this series is equipped with auxiliary contacts to deliver basic motor protection and control functions, making it widely used in industrial automation, pump stations, compressors, and other applications.

Key Technical Specifications

• Rated Current: 16 A (corresponding to 1 HP ≈ 208 V, 0.75 HP ≈ 230 V, 1.5 HP ≈ 460 V)
• Operating Voltage: 120 V, 208 V, 230 V, 460 V, 575 V (optional)
• Starting Method: Full-voltage Direct On-Line (DOL) starting, no reverse function
• Contact Configuration: 1 × auxiliary Normally Open (NO) contact for easy connection of external control circuits
• Dimensions: Approximately 7.22 in (height) × 12 in (width) × 7.75 in (depth)
• Weight: Approximately 2.6 lb (about 1.2 kg)
• Protection Class: NEMA 3 (dust and drip proof)
• Certifications: UL, CSA, and other international safety certifications; 1-year warranty provided

Product Features

• Compact and Easy to Install: The open enclosure and standardized terminals enable quick on-site wiring and assembly.
• Reliable Overload Protection: Built-in bimetallic or electronic overload relay automatically disconnects when current is abnormal, preventing motor burnout.
• Auxiliary Contacts: Equipped with normally open auxiliary contacts for linkage with PLCs, relays, or other control components, enabling start/stop indication or remote monitoring.
• Full-Voltage Direct Starting: Startup current is supplied directly by the power grid, suitable for low-power motors without the need for additional step-down devices.
• Compliance with International Standards: Certified by UL, CSA, etc., meeting safety and quality requirements of industrial sites worldwide.

Structure and Composition

• Enclosure: Metal open enclosure, conforming to NEMA 3 protection class.
• Main Contact Set: Responsible for the main current path of the motor, using high-conductivity copper contacts.
• Auxiliary Contacts: Independent normally open contacts for signal output.
• Overload Relay: Bimetallic or electronic type with adjustable overload setting.
• Terminals: Standardized screw terminals with clear markings for easy on-site wiring.
• Electromagnetic Coil: Provides starting magnetic field; coil voltage options include 120 V, 208 V, 230 V, 460 V, etc.

Typical Application Areas

• Pump Stations and Water Treatment: Direct starting of small centrifugal pumps.
• Compressors: Reliable starting of air or refrigeration compressors.
• Conveyor Systems: Belt conveyors, screw conveyors, etc.
• Heating, Ventilation, and Air Conditioning (HVAC): Start control of fans and blowers.
• General Industrial Machinery: Low to medium power motors such as mixers and grinders.

Installation and Maintenance Guidelines

• Installation Location: Install in a well-ventilated environment free of corrosive gases, keeping the enclosure dry.
• Wiring Inspection: Correctly connect power supply, load, and auxiliary contacts according to the product wiring diagram, ensuring screws are securely fastened.
• Overload Setting: Adjust the overload relay setting based on the motor’s rated current and starting characteristics (generally 115%–125% of the rated current).
• Regular Inspection: Check contact wear, coil insulation, and terminal tightness every 6–12 months; replace aging components if necessary.
• Troubleshooting: In case of startup failure or frequent tripping, first check the power supply voltage, overload setting, and load condition of auxiliary contacts.

If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
• Whatsapp/Mobile:+86 15359273791

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