Dold Monitoring Relay, 1, 3 Phase, SPDT, DIN Rail, 230V ac
- RS stock no.:
- 240-9033
- Mfr. Part No.:
- AI897 AC45-400Hz230V 10-80kOhm
- Manufacturer:
- Dold
Subtotal (1 unit)*
R 5 830,99
(exc. VAT)
R 6 705,64
(inc. VAT)
FREE delivery for orders over R 1,500.00
Temporarily out of stock
- 2 unit(s) shipping from 29 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | R 5,830.99 |
*price indicative
- RS stock no.:
- 240-9033
- Mfr. Part No.:
- AI897 AC45-400Hz230V 10-80kOhm
- Manufacturer:
- Dold
Specification
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Dold | |
| Product Type | Monitoring Relay | |
| Electrical Phase | 1, 3 | |
| Contact Configuration | SPDT | |
| Mount Type | DIN Rail | |
| Switching Voltage | 400V | |
| Supply AC Voltage | 230V ac | |
| Minimum Operating Temperature | -20°C | |
| Maximum Operating Temperature | 60°C | |
| Series | AI 897 | |
| Standards/Approvals | RoHS | |
| Height | 77mm | |
| Length | 115mm | |
| Width | 45mm | |
| Select all | ||
|---|---|---|
Brand Dold | ||
Product Type Monitoring Relay | ||
Electrical Phase 1, 3 | ||
Contact Configuration SPDT | ||
Mount Type DIN Rail | ||
Switching Voltage 400V | ||
Supply AC Voltage 230V ac | ||
Minimum Operating Temperature -20°C | ||
Maximum Operating Temperature 60°C | ||
Series AI 897 | ||
Standards/Approvals RoHS | ||
Height 77mm | ||
Length 115mm | ||
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
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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