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ABB CM-MSS

Name: CM-MSS
Brand: ABB
SKU: CM-MSS
Price: 44.19 GBP
Availability: InStock

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£44.19 (ex. VAT)

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Marvo Stock ID MV-BURV

HS Code 853641

SKU CM-MSS

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 254.00

Width (mm) 204.00

Height (mm) 77.00

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Specification & Description

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Specification & Description

Specification	Description
Part Number	CM-MSS
Alternative Part Number	CMMSS
Manufacturer	ABB
Mounting Type	DIN Rail Mount
Dimensions	103.7 x 22.5 x 85.6 mm
Operating Voltage	24 to 240 V ac/dc
Current Rating	4 A
Number of Sensor Circuits	1
Sensor Type	PTC type A (DIN/EN 44081, DIN/EN 44082)
Contact Configuration	1NO/NC
Output Type	Relay, 1st and 2nd c/o (SPDT) contact
Rated Operational Voltage	250 V AC
Minimum Switching Voltage	24 V
Minimum Switching Current	10 mA
Maximum Switching Voltage/Current	Refer to 'Load limit curves' in datasheet
Electrical Insulation	Between supply circuit and measuring circuit
Power Failure Buffering Time	20 ms
Overtemperature Monitoring	Switch-off resistance (relays de-energize) 2.83 kΩ, Switch-on resistance (relays energize) 1.1 kΩ
Short-circuit Detection	Configurable
Interrupted Wire Detection	Dynamic
Non-volatile Fault Storage	Configurable
Test Function	Yes
Control Functions	Manual reset, auto reset (adjustable), remote reset (adjustable)
Indication of Operational States	LED green for control supply voltage, LED yellow for relay status, LED red for fault message
Mechanical Lifetime	30 x 10^6 switching cycles
Electrical Lifetime	At AC12, 230 V AC, 4 A: 0.1 x 10^6 switching cycles
Degree of Protection	Housing: IP50, Terminals: IP20
Electrical Connection	Screw connection technology or Easy Connect Technology (push-in)
Commodity Code	853641

The ABB CM-MSS Motor Protection Relay is a sophisticated device engineered to safeguard motors from potential damage due to overheating. This DIN rail mountable unit is designed for seamless integration into industrial control systems, offering both reliability and ease of use. With a versatile control supply voltage range of 24 to 240 V ac/dc, it caters to a broad spectrum of applications.

The CM-MSS features a compact form factor, measuring 103.7 x 22.5 x 85.6 mm, making it suitable for installations where space is at a premium. It comes equipped with 1NO/NC contacts and a 4 A current rating, ensuring robust performance for most motor protection scenarios. The relay's ability to connect up to three PTC type A thermistor sensors in series per circuit allows for precise temperature monitoring, ensuring motors operate within safe thermal limits.

Configurability is a key strength of the CM-MSS, with DIP switches enabling easy setup and adjustments. The front-facing LEDs provide clear and immediate status indication, simplifying diagnostics and maintenance tasks. The relay's automatic, manual, and remote reset functions offer flexibility in addressing fault conditions, ensuring quick recovery and minimal downtime.

Designed with a focus on operational efficiency, the CM-MSS relay is a reliable choice for protecting valuable motor assets in a variety of industrial environments. Whether it's in manufacturing, processing, or any application where motor integrity is critical, this relay stands as a testament to ABB's commitment to quality and innovation in motor protection technology.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the function of this motor protection relay?

The ABB Motor Protection Relay is designed to monitor the temperature of motor windings and protect the motor from overheating, overload, and insufficient cooling. It uses PTC thermistor sensors to detect excessive temperatures and disconnect the power to prevent damage.

Can this relay be used for different supply voltages?

Yes, the relay is versatile and can accommodate a range of control supply voltages from 24 to 240 V ac/dc, making it suitable for various applications.

How can I reset the relay after a fault has occurred?

The relay can be reset manually using the front-face Test/Reset button, remotely via a remote reset between specific terminals, or automatically, depending on the model and configuration.

Is this relay suitable for use in hazardous locations?

Certain models within the CM-MSS range are certified for use in hazardous locations, such as those with explosive gas and dust atmospheres, making them suitable for a wide range of industrial applications.

What type of certifications does this relay have?

The relay boasts several international certifications, including CB Scheme, UL, CSA, and EAC, ensuring compliance with global standards for safety and quality.

How can I configure the relay for my specific needs?

The relay features DIP switches that allow for easy configuration of various settings, such as fault storage and short-circuit detection, to tailor its operation to your specific requirements.

What kind of indicators does the relay have for monitoring its status?

The relay is equipped with LED indicators that provide visual status information and fault messages, helping you quickly identify operational states such as overtemperature, short-circuit, or wire break.

Can this relay be mounted on a DIN rail?

Yes, the relay is designed for DIN rail mounting, which facilitates easy installation and integration into electrical panels and equipment.

What is the maximum switching current for this relay?

The relay can handle a maximum switching current of 4 A, which should be considered when integrating it into your motor protection scheme.

Does the relay offer protection against short circuits in the sensor circuit?

Yes, the relay includes short-circuit monitoring of the sensor circuit as one of its protective features, enhancing the safety of your motor application.

Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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