ISOSCAN® EDS490-D
- Automatic insulation fault location
- Application main circuits
- 12 measuring channels for measuring current transformers
- CT connection monitoring
- Universal system concept
The insulation fault evaluator of the EDS460/490 series in combination with the ISOMETER® IRDH575 or the insulation fault test device PGH is designed to localize insulation faults in unearthed power supplies (IT systems). The test current signals generated by the insulation monitoring device IRDH575 or the insulation fault test device PGH are scanned by measuring current transformers and evaluated by the insulation fault evaluators. Up to 12 measuring current transformers can be connected to one EDS. A total of 90 EDS evaluators can be connected via one RS-485 interface (BMS protocol). Hence, up to 1080 circuits can be monitored. The maximum scanning time is approx. 4…10 s.
Do you already know our new product generation:
- Features
- Applications
- Accessories
- Ordering information
- Downloads
- Insulation fault location and residual current measurement
- For AC, 3AC, DC and IT systems
- Control and display function within one device (EDS…D)
- 12 measuring channels (circuits) for measuring current transformers of the CTAC, WR, WS series
- Up to 90 EDS evaluators in one system (1080 measuring channels)
- Scanning time for all measuring channels 10 s
- Response sensitivity
EDS460/490 2…10 mA (100 Ω/V)
EDS461/491 0.2…1 mA (1000 Ω / V) - History memory to store 300 events
- Two alarm relays with one changeover contact each
- N/O or N/C operation, selectable
- Connection external reset / test button
- Indication via graphical display resp. 7-segment display and alarm LEDs
- BMS address range 1…90
- Serial RS-485 interface
- Continuous CT connection monitoring
- Fault memory behaviour selectable
- Device version EDS490/491 with one alarm contactor per channel
- Additional residual current measurement
- Insulation fault location in AC, AC/DC and DC IT systems
- Main and control circuits in industrial installations and ships
- Diode-decoupled DC IT systems in power stations
- Systems for medical locations
Optional accessories for ISOSCAN® EDS490-D
Accessories
Protocol converters
Measuring current transformers for EDS460/490
Alternative measuring current transformers from the Bender range
Measuring current transformers for EDS461/491
Alternative measuring current transformers from the Bender range
| Type | Supply voltage US | Art. No. |
|---|---|---|
| DI-1DL (interface repeater) | AC 85…260 V, 50…60 Hz | B95012047 |
| DI-2USB (interface converter RS-485/USB) | supplied by the USB port, no additional power supply required. | B95012045 |
| AN471 (power supply unit for DI-1 or DI-2) | AC 230 V 50/60 Hz/AC, DC 20 V | B924189 |
* Absolute values
Protocol converters
| Type | Supply voltage US | Art. No. |
|---|---|---|
| COM465IP | AC/DC 24…240 V, 50…60 Hz | B95061065 |
| COM462RTU | AC/DC 76…276 V, 42…460 Hz | B95061022 |
Measuring current transformers for EDS460/490
| Type | Inside diameter/mm | Type of construction | Art. No. |
|---|---|---|---|
| CTAC20 | ø 20 | circular | B98110005 |
| CTAC35 | ø 35 | circular | B98110007 |
| CTAC60 | ø 60 | circular | B98110017 |
| CTAC120 | ø 120 | circular | B98110019 |
| CTAC210 | ø 210 | circular | B98110020 |
| WR70x175 | 70 x 175 | rectangular | B98080609 |
| WR115x305 | 115 x 305 | rectangular | B98080610 |
| WS20x30 | 20 x 30 | split-core | B98080601 |
| WS50x80 | 50 x 80 | split-core | B98080603 |
| WS80x80 | 80 x 80 | split-core | B98080605 |
| WS80x120 | 80 x 120 | split-core | B98080606 |
| WS80x160 | 80 x 160 | split-core | B98080608 |
Alternative measuring current transformers from the Bender range
| Type | Inside diameter/mm | Type of construction | Art. No. |
|---|---|---|---|
| W10/600 | 10 | circular-type | B911761 |
| W0-S20 | 20 | circular-type | B911787 |
| W1-S35 | 35 | circular-type | B911731 |
| W2-S70 | 70 | circular-type | B911732 |
| W3-S105 | 105 | circular-type | B911733 |
| W4-S140 | 140 | circular-type | B911734 |
| W5-S210 | 210 | circular-type | B911735 |
| WR70x175S | 70x175 | rectangular | B911738 |
| WR115x305S | 115x305 | rectangular | B911739 |
| WR150x350S | 150x350 | rectangular | B911740 |
| WR200x500S | 200x500 | rectangular | B911763 |
| WS50x80S | 50x80 | split-core | B911741 |
| WS80x80S | 80x80 | split-core | B911742 |
| WS80x120S | 80x120 | split-core | B911743 |
| WS80x160S | 80x160 | split-core | B911755 |
Measuring current transformers for EDS461/491
| Type | Inside diameter/mm | Type of construction | Art. No. |
|---|---|---|---|
| WS20x30-8000 | 20 x 30 | split-core | B98080602 |
| WS50x80-8000 | 50 x 80 | split-core | B98080604 |
Alternative measuring current transformers from the Bender range
| Type | Inside diameter/mm | Type of construction | Art. No. |
|---|---|---|---|
| W10/8000 | 10 | circular-type | B911759 |
| W1-35/8000 | 35 | circular-type | B911756 |
| WS20x30/8000 | 20 x 30 | split-core | B911764 |
| WS50x80/8000 | 50 x 80 | split-core | B911757 |
| W10/8000-6 | 10 | circular, 6x | B911900 |
Variants of ISOSCAN® EDS490-D
| Type | Supply voltage US* | Response value | Art. No. |
|---|---|---|---|
| EDS490-D-1 | DC 16…94 V / AC 16…72 V, 42…460 Hz | 2…10 mA | B91080009 |
| EDS490-D-2 | AC/DC 70…276 V / AC 42…460 Hz | 2…10 mA | B91080010 |
*Absolute value
Downloads for ISOSCAN® EDS490-D
| Category | Product | Language | Size | Download |
|---|