CM-SFS.21P

Name: CM-SFS.21P
Brand: ABB
SKU: CM-SFS.21P

Monitor single-phase currents with precision using the ABB CM-SFS.21P. Features adjustable thresholds, tripping delays, and latching functions for reliable protection in industrial applications.

Product ModelCM-SFS.21P

Material Number1SVR740760R0400

Product ID85857

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Adjustable Thresholds\"Set custom threshold values for over- and undercurrent monitoring with direct reading scales, ensuring precise protection for your equipment.\"
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2. Tripping Delays\"Adjust tripping delays from instantaneous to 30 seconds to suit your specific application needs, providing flexibility in monitoring and protection.\"
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3. Latching Function\"Enjoy a latching function that ensures the output relay remains energized even after the measured value returns within the threshold range, providing continuous protection.\"
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4. LED Indicators\"Visualize monitoring status with flashing green LEDs for timing and steady green LEDs for start-up delay, making it easy to monitor and diagnose issues.\"

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

22.5 mm

Product Net Height

85.6 mm

Product Net Depth / Length

103.7 mm

Product Net Weight

0.139 kg

Function

Over- and undercurrent monitoring

Measuring Range

3 ... 30 mA 10 ... 100 mA 0.1 ... 1 A

5. Durable Design\"Built with a durable design, the CM-SFS.21P is designed to withstand harsh industrial environments and can be easily mounted on a DIN rail for convenient installation.\"

Time Range

0 s or 0.1 ... 30 s start-up delay 0 s or 0.1 ... 30 s tripping delay (ON or OFF)

Rated Control Supply Voltage (Us)

24 ... 240 V AC/DC

Output

2 x 1 c/o or 1 x 2 c/o contacts; operating principle selectable

Terminal Type

Screwless Terminals

Rated Operational Current AC-12 (Ie)

(230 V) 4 A

Rated Operational Current AC-15 (Ie)

(230 V) 3 A

Rated Operational Current DC-12 (Ie)

(24 V) 4 A

Rated Operational Current DC-13 (Ie)

(24 V) 2 A

Minimum Switching Capacity

24 V 10 mA

Rated Impulse Withstand Voltage (Uimp)

Measuring Circuit / Output Circuit 6 kV Output Circuit 1 / Output Circuit 2 4 kV Supply Circuit / Measuring Circuit 6 kV Supply Circuit / Output Circuit 4 kV

Rated Insulation Voltage (Ui)

Measuring Circuit / Output Circuit 600 V Output Circuit 1 / Output Circuit 2 250 V Supply Circuit / Measuring Circuit 600 V Supply Circuit / Output Circuit 250 V

Degree of Protection

Housing IP50 Terminals IP20

Overvoltage Category

III

Pollution Degree

Short-Circuit Protective Devices

Output Circuit NC - F Type Fuses 6 A Output Circuit NO - F Type Fuses 10 A

Electrical Durability

AC-12 100000 cycle

Mechanical Durability

30000000 cycle

Connecting Capacity

Flexible with Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible 2x 0.5 ... 1.5 mmÂ² Rigid 2x 0.5 ... 1.5 mmÂ²

Wire Stripping Length

8 mm

Mounting Position

1 ... 6

Mounting on DIN Rail

TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715

Standards

CAN/CSA C22.2 No.14 IEC/EN 63000 IEC/EN 60255-27 IEC/EN 61000-6-2 IEC/EN 61000-6-3 UL 508

Maximum Operating Voltage UL/CSA

Output Circuit 300 V AC

Contact Rating UL/CSA

B300

Connecting Capacity UL/CSA

Flexible 2x 18-16 AWG Rigid 2x 20-16 AWG

Pilot Duty UL/CSA

B300

Ambient Air Temperature

Operation -20 ... +60 Â°C Storage -40 ... +85 Â°C

Object Classification Code

ETIM 7

EC001440 - Current monitoring relay

ETIM 8

EC001440 - Current monitoring relay

ETIM 9

EC001440 - Current monitoring relay

eClass

V11.0 : 27371802

UNSPSC

39122332

E-Number (Finland)

2712297

E-Number (Norway)

4188075

E-Number (Sweden)

3860640

Manufacturer ID

1SVR740760R0400