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ABB Monitoring Relay PTC, SPDT Contact, DIN Rail Mounted, Push-in Terminal, 24 V DC AC, 240 V AC 1SVR740722R1400 CM-MSS.21P

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ABB Monitoring Relay PTC, SPDT Contact, DIN Rail Mounted, Push-in Terminal, 24 V DC AC, 240 V AC 1SVR740722R1400 CM-MSS.21P

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Category Monitoring Relays Brand ABB Condition New

Specifications

Country of Origin	India
Brand	ABB
Height	85.6mm
Length	103.7mm
Model	1SVR740722R1400 CM-MSS.21P
IP Rating	IP50, IP20
Mount Type	DIN Rail
Series	CM-MSS
Maximum Operating Temperature	60°C
Contact Configuration	SPDT
Sub Type	PTC
Minimum Operating Temperature	+60°C
Terminal type	Push-in
Contact Current	3.7mA
Supply DC Voltage	24 V dc
ABB Monitoring Relay, SPDT, DIN Rail, 24 V dc 24V ac, 240 V acBrand	ABB

Key Features

Designed for motor protection using PTC temperature sensors.
SPDT contact configuration ensures reliable switching.
DIN rail mount type with push-in terminal connections for ease of installation.
Suitable for supply voltages ranging from 24 V DC/AC to 240 V AC.
Features short circuit monitoring and wire break detection.
Supports dynamic interrupted wire detection and remote reset.
IP50 and IP20 protection ratings for robust industrial use.
Operates reliably within -60°C to +60°C temperature range.

Product Description

ABB 1SVR740722R1400 CM-MSS.21P monitoring relay is specifically engineered for high-performance thermistor motor protection based on PTC temperature sensors embedded in motor windings. It measures motor temperature changes effectively to prevent overheating and motor damage.

This relay features a robust SPDT contact configuration and is designed for installation on standard DIN rails with push-in terminal technology, enabling secure and easy wiring. The device operates on a wide supply voltage range of 24 V DC, 24 V AC, and up to 240 V AC, making it versatile for various industrial and automation applications.

Main features include dynamic interrupted wire detection, short circuit monitoring of the sensor circuit, and non-volatile fault storage that retains fault data even after power interruptions. The relay supports remote reset and wire break detection enhancing operational safety and maintenance diagnostics.

The CM-MSS series supports high ambient temperature tolerance and is suitable for use in demanding industrial environments where reliable motor temperature monitoring is critical. The IP50 and IP20 ratings protect the relay against dust ingress, suitable for indoor electrical enclosures and control panels.

The compact size with length 103.7 mm and height 85.6 mm allows for space-efficient integration in control cabinets. These reliable features make this monitoring relay ideal for applications in industrial motor control, HVAC systems, manufacturing, and automation sectors.

Designed for motor protection using PTC temperature sensors. SPDT contact configuration ensures reliable switching. DIN rail mount type with push-in terminal connections for ease of installation. Wide control supply voltage range: 24 V DC/AC up to 240 V AC.

Dynamic interrupted wire detection and sensor circuit short circuit monitoring. Non-volatile fault storage and remote reset capabilities. IP50 and IP20 protection ratings. Operating temperature range from -60°C to +60°C.

Compact dimensions for space-saving applications. Suitable for heavy duty motor starting and thermal management. Explore a wide range of ABB relays and monitoring devices on EnvMart for comprehensive motor and industrial control solutions.

Explore more products in our Monitoring Relays category.