RC48N
The RC48N ground-fault neutral-grounding monitor is used to monitor high-resistance grounded installations. The maximum ground fault current in these systems is limited by a neutral grounding resistor to 5 A, 15 A or 25 A .
The RC48N ground-fault neutral-grounding monitor combines three functions in one device:
- Monitoring of the residual current in the grounding conductor.
- Voltage monitoring between the transformer neutral and ground.
- Monitoring of the grounding resistor for continuity (NGR).
If a value is not within the thresholds, a relay with two voltage-free changeover contacts will be activated.
The RC48N ground-fault neutral-grounding monitor is used to monitor high-resistance grounded installations. The maximum ground fault current in these systems is limited by a neutral grounding resistor to 5 A, 15 A or 25 A .
The RC48N ground-fault neutral-grounding monitor combines three functions in one device:
- Monitoring of the residual current in the grounding conductor.
- Voltage monitoring between the transformer neutral and ground.
- Monitoring of the grounding resistor for continuity (NGR).
If a value is not within the thresholds, a relay with two voltage-free changeover contacts will be activated.
Features
- Ground-fault monitor for high-resistance grounded installations with a limited fault current of 5 - 25 A
- Three-in-one functionality: Residual current, voltage and grounding resistor continuity
- Measures the residual current by means of a Bender residual current transformer
- Alarm easily recognizable by LED lights
- Alarm relay with adjustable trip time
- Measures resistance value and voltage drop of the NGR via coupling devices
- Alarm easily recognizable by LED lights
- The alarm relay can be used for the tripping of a load switch
- Depending on the type of load switch the operating mode of the alarm relay can be set to N/O operation or N/C operation
Applications
- High-resistance grounded installations with a limited fault current of 5…25 A
- Mining applications
RC48N Variant(s)
| Basic device | Supply voltage/ frequency range US | Power consumption | Art. No. |
|---|---|---|---|
| RC48N-935 | AC/DC 60…264 V 50…60 Hz | approx. 5.8 VA at AC 60 V approx. 8.5 VA at AC 264 V | B94013005 |
Optional Accessories for RC48N
| Type designation | Art.-No. |
|---|---|
| Remote alarm indicator and operator panel | B94071001 |
| Type designation | Art.-No. |
|---|---|
| CD1000 Coupling device, AC 0…1000 V | B98039010 |
| CD5000 Coupling device, AC 0…5000 V | B98039011 |
| Residual current transformer, 70 mm | B911777 |
| Residual current transformer, 105 mm | B911778 |
Downloads for RC48N
| Name | Category | Size | Language | Timestamp | D-/B-Number |
|---|---|---|---|---|---|
| RC48 | CE Declarations of conformity | 87.5 KB | 2024/04/2626.04.2024 | ||
| UKCA - RC48 | CE Declarations of conformity | 121.6 KB | 2024/04/2626.04.2024 | ||
| RC48N | Manuals | 539.4 KB | DE | 2024/03/0101.03.2024 | D00426 |
| RC48N | Manuals | 539.4 KB | EN | 2024/03/0101.03.2024 | D00426 |
| RC48N Manual (US) | Manuals | 1.3 MB | EN | 2019/08/1616.08.2019 | |
| System Grounding in the Americas, Australia, South Africa and Other Regions | Application brochures | 576.7 KB | EN | 2019/05/1313.05.2019 | |
| Guideline on NGR/Safety Ground Monitoring | Technical information | 234.7 KB | EN | 2019/09/2020.09.2019 | |
| NGRM500 Retrofit Guide (US) | Technical information | 1.3 MB | EN | 2021/02/1010.02.2021 |