Automation & Control

CM-SFS.21P Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC

Product Id
1SVR740760R0400
The CM-SFS.21P is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges: 3-30 mA, 10-100 mA and 0.1-1 A. The CM-SFS.21P offers window (over- and undercurrent) monitoring as well as selection of ON- or OFF-delay, open- or closed-circuit operating principle, with or without latching function. The output contacts can be configured as 1x2 c/o (SPDT) (common signal) or 2x1 c/o (SPDT) (separate signal for minimum and maximum thresholds) operation. The hysteresis is fixed at 5 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.

More about CM-SFS.21P Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC

Technical Specification
MRP (Indian Rupees) Not for Retail Sale
Compatibility Monitoring Relays
Rated Insulation Voltage (Ui) Measuring Circuit / Output Circuit 600 volt, Output Circuit 1 / Output Circuit 2 250 volt, Supply Circuit / Measuring Circuit 600 volt, Supply Circuit / Output Circuit 250 volt
Ambient Air Temperature Operation -20 ... +60 degree Celsius, Storage -40 ... +85 degree Celsius
Terminal Type Screwless Terminals
Package Gross Weight 0.162 kilogram
Product Range Monitoring Relays
Invoice Description CM-SFS.21P Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC
Package Height 109 millimetre
Package Length 30 millimetre
Package Width 97 millimetre
Max Operating Voltage UL/CSA Output Circuit 300 volt AC
Function Over- and undercurrent monitoring
Extended Product Type CM-SFS.21P
Total GST Percentage 18.00
HSN Number 85364900
Country of origin Germany (DE) - Imported by ABB India Limited
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