Features of VAMP 321 Arc Flash Relay Schneider
1. Modular structure
The modular design allows users to customize hardware for enhanced performance and scalability, supporting both standard and advanced arc flash protection.
2. PC configurable
The VAMP 321 can be configured by end-users with the VAMPSET software tool, and event/disturbance recordings can be easily analyzed via a USB connection to a PC.
3. Event logs and disturbance recording
VAMP provides event and disturbance logging capabilities to facilitate in-depth analysis of arc phenomena before and after faults.
4. Multiple communication
The VAMP 321 is equipped with five communication ports, four of which are specifically designed for the SCADA interface, supporting protocols like IEC 61850.
Specification of VAMP 321 Arc Flash Relay Schneider
| Parameter | Value |
| Power supply | 110-240 ± 10% V ac/dc |
| Vs | 110/120/220/240 V ac <br> 110/125/220 V dc <br> 24-48 ±20% V dc <br> 24/48 V dc |
| Measuring circuits | |
| Rated current IN | 5 A (configurable for CT secondaries 1-10 A) |
| Burden | < 0.2 VA |
| Rated current I0 | 5 A / 1 A (optionally 1 A / 0.2 A) |
| Burden | < 0.2 VA |
| Rated voltage UN | 100 V (configurable for VT secondaries 50-120 V) |
| Burden | < 0.5 VA |
| Rated frequency fN | 45-65 Hz |
| Operating settings | |
| Phase current stage IL> | 0.5 – 8.0 x IN |
| Earth-fault current I0> | 0.1 – 5.0 x IN |
| Tripping outputs | |
| Number of contacts | As per order code |
| Rated voltage | 250 V ac/dc |
| Continuous carry | 5:00 AM |
| Make and carry for 0.5 s | 30 A |
| Make and carry for 3 s | 15 A |
| Contact material | AgNi 90/10 |
| Operating time (trip contact) | 7 ms |
| Operating time (HSO) | 2 ms |
| Signal outputs | |
| SF output contact | 1 pc change over |
| Signal contact | 1 pc NO |
| Rated Voltage | 250 V ac/dc |
| Continuous carry | 5:00 AM |
| Contact material | AgNi |
| BIO inputs/outputs, slot 2 option B | |
| Rated output voltage | +30 V dc |
| Rated input voltage | +18-265 Vdc |
| Rated current (BO) | 20 mA |
| Rated current (BI) | 5 mA |
| BI line (IN) | 3 pcs |
| BO lines (OUT) | 3 pcs |
| BIO inputs/outputs, slot 2 option C | |
| Connector | ST |
| Fibre | 50/125 µm, 62.5/125 µm, 100/140 µm, and 200 µm |
| Max link distance | 2 km (62.5/125 µm) |
| Max link attenuation | 7 db |
| BI line (IN) | 2 pcs |
| BO lines (OUT) | 2 pcs |
| ARC I/O bus (RJ-45) | |
| Multidrop | Max 16 slaves and 3 masters |
| Supply to slaves | Isolated 24 V dc |
| Communication (master-slave) | RS485 information/self-supervision |
| ARC/OC signal (master-slave) | 4 zone ARC and 1 zone OC line |
| Arc sensor inputs | |
| Direct inputs | As per the order code |
| Supply to sensor | Isolated 12 V dc |
