Dold Insulation Monitoring Relay, 1, 3 Phase, SPDT, 0.8 → 1.1 V, DIN Rail
Technical Document
Specifications
Brand
DoldMonitoring 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
Length
115mm
Operating Temperature Range
+60°C
Minimum Operating Temperature
-20°C
Width
45mm
Maximum Operating Temperature
+60°C
Dimensions
115 x 45 x 77mm
Country of Origin
Germany
Product details
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.
€ 481.77
€ 481.77 Each (Exc. VAT)
€ 568.49
€ 568.49 Each (inc. VAT)
1
€ 481.77
€ 481.77 Each (Exc. VAT)
€ 568.49
€ 568.49 Each (inc. VAT)
1
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Technical Document
Specifications
Brand
DoldMonitoring 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
Length
115mm
Operating Temperature Range
+60°C
Minimum Operating Temperature
-20°C
Width
45mm
Maximum Operating Temperature
+60°C
Dimensions
115 x 45 x 77mm
Country of Origin
Germany
Product details
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.