ABB CM-MPS.21S phase monitoring relay, 3-phase, 160–690V AC, 1 c/o contact, compact DIN rail unit for motor safety.

ABB CM-MPS.21S 1SVR730885R3300

SKU: CM-MPS.21S

Your Price:

$463.00

Order in the next to get it by

10+ Available in Stock

Free Shipping on All Orders
We will beat any price
1 Year Warranty
Free shipping
Experts Aavaiable 7/24/365
30 days money-back

ABB CM-MPS.21S | 3-Phase Monitoring Relay | 160–690V AC | 1 Changeover Contact

Overview

The ABB CM-MPS.21S is a compact phase monitoring relay used for detecting phase failure, phase sequence errors, and asymmetry in 3-phase networks. Operating within a voltage range of 160–690V AC, it features a single changeover contact output and is ideal for applications where compact design and reliable performance are required.

Key Features

Monitoring Functions: Phase loss, incorrect phase sequence, phase asymmetry
Input Voltage Range: 3 x 160–690V AC
Contact Configuration: 1 c/o (SPDT)
Output Rating: 250V AC / 6A (resistive load)
DIN Rail Mounting: 35 mm standard rail
Width: 17.5 mm
Terminal Type: Screw terminals
Status Indication: LEDs for normal operation and fault detection
Adjustable Asymmetry Threshold: 5–15%
Trip Delay: 0.1–10 s adjustable delay time

Technical Specifications

Catalog Number: CM-MPS.21S
Frequency: 50/60 Hz
Mechanical Life: Over 10 million operations
Electrical Life: Over 100,000 operations
Power Consumption: ≤ 4 VA
Protection Rating: IP20 (housing), IP40 (front)
Operating Temperature: -20°C to +60°C
Standards: IEC/EN 60255-1, IEC/EN 60947-5-1
Weight: Approx. 150 g
Country of Origin: Germany

Applications

Industrial Motor Monitoring
HVAC Equipment
Pumping Systems
Material Handling Equipment
Electrical Distribution Panels

Why Choose the ABB CM-MPS.21S?

Universal Voltage Range: Monitors up to 690V AC
Compact Design: Slim 17.5 mm for tight panel spaces
Precision Monitoring: Protects against key phase faults
Easy Integration: DIN rail mounting and screw terminals
High Durability: Long mechanical and electrical life

Order Now

Available with global delivery.

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.