Dold Insulation Monitoring Relay, 1, 3 Phase, SPDT, 0.8 → 1.1 V, DIN Rail

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3 164,87 kr

(exkl. moms)

3 956,09 kr

(inkl. moms)

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RS-artikelnummer:
240-9033
Tillv. art.nr:
AI897 AC45-400Hz230V 10-80kOhm
Tillverkare / varumärke:
Dold
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Brand

Dold

Monitoring Application

Insulation

Electrical Phase

1, 3

Voltage Sensing Range

0.8 → 1.1 V

Contact Configuration

SPDT

Mounting Type

DIN Rail

Time Delay

<4.2s

Series

AI 897

Height

77mm

Dimensions

115 x 45 x 77mm

Maximum Operating Temperature

+60°C

Width

45mm

Minimum Operating Temperature

-20°C

Operating Temperature Range

+60°C

Length

115mm

COO (Country of Origin):
DE

Insulation monitor for pure 3 phase and alternating current systems, AI897


Adjustable response value 10 → 80 kΩ
No separate auxiliary voltage connection required
1 changeover
Overall width 45 mm

The AI897 insulation monitor displays the insulation resistance of unearthed 3 phase and alternating current systems to earth.
The device works according to the quiescent current principle, that is, the output relay responds when mains voltage is applied to terminals A1 → A2. The output relay breaks when the response setpoint is undercut.
A bridge between terminals LT1 and LT2 allows the AI897 to be programmed for memory storage behaviour; remove the bridge to programme hysteresis behaviour. The bridge can be replaced with a delete key with an NC contact. There is a PT test button on the front of the device to test for functional efficiency. An external test button (in accordance with VDE 0413) is also possible.

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