| Introduction: | | It is a PTC Thermistor Relay. It offers protections against Over heating of the windings of pumps, motors, transformers, alternators etc. & sense the temperature with the help of PTC thermistor. It can be used with single or triple PTC & also with 6 or 9 PTCs as a special case. It can used for AC/DC motor, generator, transformer, winding protection against over heating of SCRs & Bus Bars. |
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| Features: | · Monitors Overload & Phase Loss, Phase Sequence by sensing Overheating of Windings.
· Operates with Embedded PTC sensors in the motor / transformer windings.
· Suitable for any PTC Thermistor.
· Sensor Short / Open Condition Monitoring.
· 1 CO output rated 230V AC / 5A （Resistive）
· Auto （Optional Manual） Reset.
· Plug-in 8 pin base mounted.
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| Application Areas: | | Injection Molding machines Machine tools Crane & hoist motors Compressors & fan motors |
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| Technical Specifications: |
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| | Specifications | | 1 | Supply Voltage | Auxiliary 110 / 220 - 240 / 380 - 415 / 440 V AC / 24 V DC ± 10% | | 2 | Output Contacts | 1 CO | | 3 | Trip Setting | Thermistor Sensor Healthy 40 ohm - 4 K ohm; Thermistor Sensor Trip 4.1 K ohm - 5.5 K ohm; Thermistor Sensor Open 5.6 K ohm & above; Reset 1.5 K ohm - 1.8 K ohm for 1/3 PTC 2.2 K ohm - 2.8 K ohm for 6/9 PTC | | 4 | Trip time delay | Less than 2 secs. | | 5 | Resetting Mode | Auto / Manual （optional） | | 6 | Dimensions （mm） | Overall （L x W x D） 50 x 40 x 40; Mounting （L x W） 8 pin plug-in | | 7 | Weight | 175 gms. |
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