WF Series
Flexible WF… series measuring current transformers are highly sensitive measuring current transformers, which measure AC currents in conjunction with a RCMS460/490 series ground-fault monitoring system and convert them into an evaluable measuring signal. They consist of one flexible WF… measuring current transformer and one RCC420 signal converter. Connection to the respective ground-fault monitor is via a two-wire cable.
Flexible WF… series measuring current transformers are highly sensitive measuring current transformers, which measure AC currents in conjunction with a RCMS460/490 series ground-fault monitoring system and convert them into an evaluable measuring signal. They consist of one flexible WF… measuring current transformer and one RCC420 signal converter. Connection to the respective ground-fault monitor is via a two-wire cable.
Features
- Flexible measuring current transformer in different lengths
- Space-saving design, quick installation
- Easy retrofitting into existing installations
- Can be installed without the need to disconnect the conductors
- Connection monitoring WF… measuring current transformers
- For RCMS460/490 series residual current monitoring systems
- For RCM420-D9 series residual current monitors
- Analogue output (U, I) for external measuring devices
- RCC420 with push-wire terminals (two terminals per connection)
Applications
- Residual, fault and nominal current monitoring of loads and systems which cannot be switched off
- EMC monitoring of TN-S systems for “stray currents” and additional N-PE connections in the central earthing point (CEP)
- Monitoring of PE and equipotential bonding conductors to ensure they are free of current
WF Series Variant(s)
| Type | Length A measuring current transformer | Ø Diameter | Supply voltage US* | Art. No. |
|---|---|---|---|---|
| WF170-1 | 170 mm | >50mm | DC 9.6…94 V/AC 16…72 V, 42…460 Hz | B78080201 |
| WF170-2 | 170 mm | >50mm | DC 70…300 V/AC 70…300 V, 42…460 Hz | B78080202 |
| WF250-1 | 250 mm | >75mm | DC 9.6…94 V/AC 16…72 V, 42…460 Hz | B78080203 |
| WF250-2 | 250 mm | >75mm | DC 70…300 V/AC 70…300 V, 42…460 Hz | B78080204 |
| WF500-1 | 500 mm | >155mm | DC 9.6…94 V/AC 16…72 V, 42…460 Hz | B78080205 |
| WF500-2 | 500 mm | >155mm | DC 70…300 V/AC 70…300 V, 42…460 Hz | B78080206 |
| WF800-1 | 800 mm | >250mm | DC 9.6…94 V/AC 16…72 V, 42…460 Hz | B78080207 |
| WF800-2 | 800 mm | >250mm | DC 70…300 V/AC 70…300 V, 42…460 Hz | B78080208 |
| WF1200-1 | 1200 mm | >380mm | DC 9.6…94 V/AC 16…72 V, 42…460 Hz | B78080209 |
| WF1200-2 | 1200 mm | >380mm | DC 70…300 V/AC 70…300 V, 42…460 Hz | B78080210 |
| WF1800-1 | 1800 mm | >570mm | DC 9.6…94 V/AC 16…72 V, 42…460 Hz | B78080221 |
| WF1800-2 | 1800 mm | >570mm | DC 70…300 V/AC 70…300 V, 42…460 Hz | B78080222 |
*Absolute value
Optional Accessories for WF Series
| Type | Art. No. |
|---|---|
| Mounting clip for XM420 enclosure (RCC420) (one unit required per device) | B98060008 |
| Mounting frame XM420 (RCC420) | B990994 |