Mounting
The gure below shows how to attach the 3UG4983‑0C sealable cover to the
3UG4583 insulation monitoring relay.
① Remove the label from the monitoring relay
② Insert the clip into the opening on the device until it engages.
③ Slide the sealable cover onto the monitoring relay.
④ Secure the sealable cover against unauthorized removal with a seal on the clip.
Figure 13-17 Mounting the sealable cover on the monitoring relay
13.3.2 3UG4983 voltage reducer module for the 3UG4583-1CW30 monitoring relay
Description
The 3UG4983‑1A passive voltage reducer module is used for extending the measuring range of
the 3UG4583 insulation monitoring relays. The voltage reducer module enables monitoring of
the insulation resistance in systems with rated line voltages of up to 690 V AC (15 to 400 Hz) and
1000 V DC in accordance with IEC 61557‑8. The device does not require any rated control supply
voltage for operation, and it is connected between the 3UG4583 insulation monitoring relay
and the system to be monitored.
Note
If the continuously present voltage is greater than 600 V, a minimum gap of 10 mm must be
maintained between the neighboring devices.
Accessories
13.3 Accessories for 3UG458.-1AW30 / 3UG4583-1CW30 insulation monitoring relays
SIRIUS 3UG4 / 3RR2 monitoring relay
Equipment Manual, 07/2021, NEB927043002000/RS-AD/005 267
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