# ABB CM-MSS Thermistor Motor Protection Monitor Relay 220-240V

Safeguard your critical machinery with the robust ABB CM-MSS Thermistor Motor Protection Monitor Relay designed for industrial automation. This essential component provides reliable protection for electric motors against overheating and damage ensuring operational continuity and longevity. Its precise monitoring capabilities offer peace of mind for demanding applications.

Engineered for superior performance the ABB CM-MSS utilizes advanced thermistor technology for accurate temperature sensing. It operates efficiently within a **220-240V 50/60Hz** voltage range featuring a versatile C/O contact configuration. With a **Ui rating of 250V** and **Uimp rating of 4kV** this relay is built to withstand challenging industrial environments. It supports **AC15 230V 3A** and **DC13 24V 2/A 5A** NOC ratings making it suitable for a wide array of control systems.

-   High-performance **thermistor motor protection** for enhanced equipment safety
-   Reliable operation with **220-240V 50/60Hz** voltage and C/O contacts
-   Durable construction compliant with international standards **IEC/EN 60255-6 IEC/EN 60947-5-1**
-   Optimized for **industrial automation** and control system integration
-   Ensures motor longevity and prevents costly downtime

### Specifications

Voltage Rating A1/A2: **220-240V 50/60Hz**  
Contact Configuration: C/O  
Ui Rating: **250V**  
Uimp Rating: **4kV**  
AC15 Rating: **230V 3A**  
DC13 Rating: **24V 2/A 5A** NOC

Trust in the superior engineering of ABB for your automation needs. The CM-MSS monitor relay offers unmatched reliability and protection for your valuable motor assets. Optimize your system's safety and efficiency by integrating this high-quality ABB component today.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Control Components > Motor Protection Relays
- **Tags:** 220-240V relay, ABB CM-MSS, ABB motor protection, control systems, IEC EN 60947-5-1, industrial automation, machine safety, motor protection relay, thermistor relay

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| CM-MSS / NEW | 999.00 USD | In stock |

## Images

- ABB CM-MSS Thermistor Motor Protection Monitor Relay 220-240V-Ram Automations

---

> Source: [Ram Automations](https://ramautomations.com/products/abb-cm-mss-thermistor-motor-protection-relay)
> Updated: 2026-09-18