Dold Insulation Monitoring Relay, 1, 3 Phase, SPDT, 0.8 → 1.1 V, DIN Rail
- RS Stock No.:
- 240-9033
- Mfr. Part No.:
- AI897 AC45-400Hz230V 10-80kOhm
- Brand:
- Dold
Subtotal (1 unit)*
£242.16
(exc. VAT)
£290.59
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- 5 unit(s) shipping from 10 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £242.16 |
*price indicative
- RS Stock No.:
- 240-9033
- Mfr. Part No.:
- AI897 AC45-400Hz230V 10-80kOhm
- Brand:
- Dold
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| 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 | |
| Minimum Operating Temperature | -20°C | |
| Maximum Operating Temperature | +60°C | |
| Length | 115mm | |
| Height | 77mm | |
| Dimensions | 115 x 45 x 77mm | |
| Operating Temperature Range | +60°C | |
| Width | 45mm | |
Select all | ||
|---|---|---|
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 | ||
Minimum Operating Temperature -20°C | ||
Maximum Operating Temperature +60°C | ||
Length 115mm | ||
Height 77mm | ||
Dimensions 115 x 45 x 77mm | ||
Operating Temperature Range +60°C | ||
Width 45mm | ||
- 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
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.
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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