ABB Temperature Monitoring Relay, SPDT, DIN Rail

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RS-artikelnummer:
876-5001
Tillv. art.nr:
1SVR730722R1400 CM-MSS.21S
Tillverkare / varumärke:
ABB
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Brand

ABB

Monitoring Application

Temperature

Contact Configuration

SPDT

Mounting Type

DIN Rail

Time Delay

<100ms

Temperature Sensitivity

Overtemperature, Winding Temperature

Hazardous Area Certification

ATEX

Series

CM-MSS

Operating Temperature Range

-25 → +60°C

Width

22.5mm

Maximum Operating Temperature

+60°C

Minimum Operating Temperature

-25°C

Current Range

Maximum of 3.7mA

Special Features

Automatic Reset, Fail-Safe, Inbuilt PTC Sensor, Insufficient Cooling Protection, Non-Volatile Fault Storage, One Measuring Circuit, Over Heating Protection, Over Load Protection, Short-Circuit Monitoring of the Sensor Circuit

Dimensions

103.7 x 22.5 x 85.6mm

Standards Met

UL

Height

85.6mm

Length

103.7mm

Terminal Type

Screw

ABB CM-MSS Series Monitoring Relay, Temperature Monitoring, SPDT Contact Configuration - 1SVR730722R1400 CM-MSS.21S


This monitoring relay is designed for temperature applications, specifically focusing on the winding temperature of motors. Compact in design, it measures 103.7mm x 22.5mm x 85.6mm, making it suitable for DIN rail mounting. The device effectively monitors and protects motors against overheating, overload, and insufficient cooling, ensuring optimal performance and longevity.

Features & Benefits


• Utilises SPDT configuration for versatile control options
• Automatic reset function enhances user convenience
• Non-volatile fault storage records issues for diagnosis
• Equipped with overtemperature and overload protection
• Short-circuit monitoring safeguards sensor integrity
• ATEX certification ensures safe operation in hazardous areas

Applications


• Utilised for monitoring motor winding temperatures
• Employed in industrial motor protection systems
• Suitable for use in automation and mechanical settings
• Ideal for integration in electrical control panels

How does the automatic reset function operate in the relay?


The automatic reset function allows the relay to re-energise once the monitored temperature falls below the set threshold after an overheating incident, ensuring minimal downtime and continuous operation without manual intervention.

What types of sensors can be connected to the relay for monitoring?


The relay is compatible with PTC type A sensors, which can be incorporated directly into motor windings to provide precise temperature readings, ensuring accurate monitoring for preventive measures.

Can this relay differentiate between fault types during operation?


Yes, the device features dynamic interrupted wire detection. It distinguishes between overtemperature conditions and an interrupted wire in the measuring circuit, providing relevant fault information through LED indicators.

What is the reaction time of the safety functions integrated into the relay?


The safety function of the monitoring relay has a rapid reaction time of less than 100 milliseconds, ensuring quick response to any temperature anomalies for effective protection of motors.

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