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CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays
Key specifications
Rated voltage (Ue)Filter products by 250 V
Degree of protection (IP)Filter products by IP20, Filter products by IP50
Product SeriesFilter products by CM-MSS

ABBModular Protection RelaysThermistor Motor Protection RelaysTimers and Control Relays

1SVR730722R1400 – CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays

Order code

List price

Original price was: R2142.75.Current price is: R1178.51.

Excluding VAT · per unit · volume pricing available on request

Listed in stock — availability is re-confirmed on every order

Buy 1SVR730722R1400 – CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays from ABB. Genuine ABB component for automation, motor control CM-MSS.21S Therm. motor protec. relay

Ordering & delivery
  • Contact us for bulk pricing, lead times and ordering codes.
  • Minimum order: 1 unit.
  • Manufacturer's standard warranty applies.
  • Collection from our branch, delivery nationwide, and export across Africa.
  • Some items are held off-site rather than in our own warehouse — availability is confirmed on every order.
  • Authorised ABB distributor
  • Genuine product with manufacturer warranty
  • Formal quotations with written lead times

Overview

CM-MSS.21S – 24-240V AC/DC, sensor PTC type A The CM-MSS.21S belongs to the CM-MSS thermistor motor protection relay range. It operates with a rated control supply voltage of 24 – 240 V AC / DC and has a 1 n/c + 1 n/o (SPDT) output with contacts rated at 250 V / 4 A. It features one sensor circuit to monitor PTC temperature sensors and works according to the closed-circuit principle. The sensor circuit of the CM-MSS.21S is short-circuit, as well as interrupted-wire monitored and the relay will be reset automatically after the failure has been removed. This protection relay is certified according to the ATEX directive 94/9/EC. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

1SVR730722R1400 – CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays is a genuine ABB electrical component designed for industrial automation, motor control, and power distribution applications.

ABB products are widely used across commercial and industrial installations where reliability, safety, and long operational life are required.

Applications

  • Industrial automation
  • Motor control systems
  • Power distribution infrastructure
  • Commercial electrical installations

Browse Related Categories

Thermistor Motor Protection Relays | Timers and Control Relays | Modular Protection Relays

Technical specifications

Data supplied by the manufacturer. Confirm against the official datasheet before ordering.

Identification & ordering

Order codeFilter products by 1SVR730722R1400
Product NameFilter products by CM-MSS.21S
BrandFilter products by ABB, ABB Group, ABB Limited
Product SeriesFilter products by CM-MSS
International GTINFilter products by 4013614496622

Electrical ratings

Rated voltage (Ue)Filter products by 250 V
Rated operational voltageFilter products by 250 V
Operating VoltageFilter products by 250 V
Rated Control Supply VoltageFilter products by 24 … 240
Rated FrequencyFilter products by 15 … 400
Pollution DegreeFilter products by 3.0

Power & coil

Power LossFilter products by 2 W

Environment & protection

Degree of protection (IP)Filter products by IP20, Filter products by IP50
Ambient air temperatureFilter products by -40 … +85, Filter products by '-25 … +60

Documents

DatasheetDownload datasheet
RoHS declarationDownload RoHS declaration
Declaration of conformityDownload declaration of conformity
Dimension drawingsDownload dimension drawings
ABB product pageView on the ABB site
Deep LinkOpen deep link
360° viewOpen 360° view

Quick answers

What is 1SVR730722R1400?

1SVR730722R1400 is the order code for 1SVR730722R1400 – CM-MSS.21S Therm. motor protec. relay ABB Thermistor Motor Protection Relays. It belongs to our Modular Protection Relays range. RMS-ABB.Africa supplies it as an authorised ABB distributor, so it is genuine product with the manufacturer's warranty.

Is it available?

It is listed as in stock. Availability is re-confirmed on every order before any payment is taken, so what you order is what actually ships.

How do I get a formal quotation?

Use "Add to quote" and submit the quote basket. The RMS team prices every line, confirms stock, and emails you a formal quotation with written lead times — and you can accept it online to turn it into an order.

Do I pay when I order?

No. Checkout submits the order without payment; we confirm stock for every line first, then email you a secure payment link for the order.

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