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

The CM-SFS.21S 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.21S 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 screw connection technology with double-chamber cage connection terminals.

Ürün detayları

SKU Kodu: 1SVR730760R0400

EAN Kodu: 4016779852135

Minimum sipariş: 1

Teknik Veriler

Ana Özellikler

EFI00008

0.885825

EFI00040

3.370072

EFI00049

4.082669

Width

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Height

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Depth

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Current measuring range

External current transformer

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With detachable clamps

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Single-phase hysteresis possible

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Three-phase hysteresis possible

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Single-phase under current possible

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Three-phase under current possible

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Single-phase overcurrent possible

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Three-phase overcurrent possible

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Contains function DC-voltage under current

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Contains function DC-voltage overcurrent

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Function DC-current hysteresis

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Type of electric connection

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Rated control supply voltage AC 50 Hz

Rated control supply voltage AC 60 Hz

Rated control supply voltage DC

Max. permitted delay-on energization time

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Min. adjustable delay-on energization time

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Max. permitted off-delay time

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Min. adjustable off-delay time

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Voltage type for actuating

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Number of contacts as normally closed contact

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Number of contacts as normally open contact

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Number of contacts as change-over contact

-

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