VT2820
General-Purpose Relay Module
The module VT2820 provides 20 general-purpose relay channels. These can be used for example to switch various signal paths in a test system, to realize a switch matrix, or to generate errors like short-circuits.
Characteristics
Functions
- 12 relay channels with single-pole closer and 2 additional relays to internal bus bars (e.g. to Vbatt and ground)
- 8 relays with change-over contacts
- Overcurrent protection by resettable fuse (polyfuse)
Technical Data
| VT2820 | ||
| Switching voltage | -60 V … +60 V | |
| Continuous current (relay closed) | 6 A | |
| Switching current | ||
| – at voltage ≤ ±24 V | 6 A | |
| – at voltage ≤ ±40 V | 2 A | |
| – at voltage ≤ ±60 V | 0.5 A | |
| Contact resistance | Max. 100 mΩ | |
| Signal transmission capability (square wave) | 1 MHz | |
| Mechanical endurance | 20 x 106 cycles | |
| Electrical endurance | 50 x 103 cycles | |
| Basic Data | ||
| Supply voltage (via backplane) | 12 V ±10 % | |
| Power consumption (all relays off) | Typ. 1.4 W | |
| Power consumption (30 relays active) | Typ. 8.7 W | |
| Temperature range | 0 … 55 °C | |
| Dimensions (L x W x H) | 300 x 173 x 36 mm | |
| Weight | Approx. 760 g | |
