Description
Instantaneous relay with high contact rating.
Relay pluggable on socket including a withdrawal clasp and two square guide pins which can ast as a key to ensure that the correct relay is used at the correct voltage.(see our withdrawal guide in the technical support pages of this site)
Recommended operating position : vertical coil axle/clapper upside or horizontal coil axle/contacts down.
Pluggable on front wiring socket (EVD) or rear wiring sockets (ER, ERB, ERDL).
Dimensions
Connection
Operation principle
This relay is equipped with 5 double cut-off CO contacts with self arc blowing, particularly adapted to high DC cut-off.
Minimum switching current :
* up to 12 V : not recommended
* 160 mA at 24 V
* 55 mA at 48 V
* 8 mA at 125 V
* 0,9 mA at 220 V
* 0,1 mA at 380 V
Technical features
| Function | Instantaneous |
| Presentation | under cover |
| Connection | on front or rear wiring socket |
| Number of mechanical operations | 50.000.000 |
| Operating temperature | - 5??C to + 40??C |
| Storage temperature | - 40??C to + 70??C |
| Climatic protection | optional reinforced climatic protection |
| Shock voltage | 5 KV (wave 1,2/50 ??s) |
| Dielectric strength | 2500 V eff |
| Insulation resistance | C500 (according to NFC 45-202 & VDE 0110) |
| Weight | 300 g. |
| Protection level | IP 40 (according to NFC 20-010) |
Coil data
| Direct current | Alternative current | ||
| Min. nominal voltage DC | 6 V | 6 V | |
| Min. nominal voltage AC | 220 V | 380 V - 50/60 Hz. | |
| Operating range | -20/+10% of nominal voltage | ||
| Power requirement | 3 W +/- 10% | 14 VA +/- 20% | 7,5 VA +/- 20% |
Contacts
| Number of contacts | 4 |
| Max. load current | 10 A per contact |
| Response time (bounce time not included) | DC < 36 ms - AC < 31 ms |
Contacts rating
| DIRECT CURRENT | ||||
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Versions
BA72: DC versions
BA88: AC versions
Other versions:
. Relay BA with reinforced climatic protection
. Relay BA with specific characteristics upon request
. Relay BA UIC (for SNCF use)
. BA intensity relay (for DC)
Homologations & conformities :
* CEI 255-1-00
* NFC 45-250