Motogard Series
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Motogard Relay Models Model No. Operating Characteristics 6 Inputs 2 Triac Outputs 1 N.O.* 1 N.C.* 3 Inputs Single Triac Output N.C.* 3 Inputs Form C Relay Output 1 Input Form C Relay Output Input Rating Output Rating 120VAC± 10%, Single Phase, 50/60 Cycles 120/240 Volts AC 5 amp continuous 120/240 Volts AC or 28 Volts DC 5 amp continuous Input Resistance Control Controller ON with 500 ohms or less - OFF with approx. 1500 ohms or more Controller ON with 500 ohms or less - OFF with approx. 1500 ohms or more Controller ON with 150 to 500 ohms - OFF with approx. 1500 ohms or more Controller ON with 150 to 500 ohms - OFF with approx. 3500 ohms or more Controller output, excitation, and sesor input electrically isolated from each other Controller excitation only isolated from output and sensors Controller output, excitation, and sesor input electrically isolated from each other Controller output, excitation, and sesor input electrically isolated from each other Potted in "NEMA" 12 steel case Potted in polyester case Mounted in welded steel case Potted in polyester case * eries 115 and 120 Motogard Controllers use output S Triacs that have been specifically selected to operate directly in series with main line contactors. If a small interposing relay must be used, the sealed VA rating of the interposing relay should be greater than 10VA. Other Products Copyright 2015 by AMETEK FACTORY AUTOMATION. All Rights Reserved. Made in the USA. 1080 North Crooks Road, Clawson, MI 48017 Phone: 248-435-0700 Toll Free: 800-635-0289 Fax: 248-435-8120 www.ametekfactoryautomation.com Motogard™ Over – Temperature Protection System Ordering Guide and Technical Informati

General Information Motogard Over-Temperature Protection Systems provide immediate overheating protection for: motors, equipment enclosures, semiconductor heatsinks, sleeve bearings, and other related machinery. All Motogard systems fully conform to the NEC requirements for integral motor thermal protection. The temperature inside of the motor is monitored at all times. Using Positive Temperature Coefficient (PTC) Thermistors embedded in or in contact with the surface, the Motogard system is able to continually sense when the equipment exceeds the pre-selected temperature limits. Motogard...

On Motogard series 115, 120, and 135 thermistors are placed in parallel allowing independent monitoring of 3-6 points in the equipment. On series 150, the three thermistors are wired in series reacting as a single switching point. Although there is a higher resistance switching point on the series 150, each separate thermistor will pass 3500 ohms on over-temperature. PTC Thermistors Motogard controllers are designed for use with positive temperature coefficient thermistors. PTC’s are unlike other thermistors as they increase their resistance sharply when reaching their switch...

Motogard Relay Models interposing relay must be used, the sealed VA rating of the interposing relay should be greater than 10VA. Other Products UeMEU LINEAR DISPLACEMENT TRANSDUCERS ROTARY POSITION PRODUCTS PROGRAMMABLE LIMIT SWITCHES EXTREME DUTY CABLE REEL PRODUCTS ROTARY LIMIT SWITCHES MILL DUTY ENCLOSURES Copyright 2015 by AMETEK FACTORY AUTOMATION. All Rights Reserved. Made in the USA. VMETEK FACTORY AUTOMATION 1080 North Crooks Road, Clawson, MI 48017 Phone: 248-435-0700 Toll Free: 800-635-0289 Fax: 248-435-8120 www.ametekfactoryautomation.com