Description
Fast action instanteneous relay with magnetic arc blowing - 4 CO contacts.
Pluggable on front wiring socket (9705) or rear wiring socket (9723)
Pluggable on front wiring socket (9705) or rear wiring socket (9723)
Detailed table of coil resistance data is available in the technical support pages of this site or can be sent upon request.
Dimensions
Connection
Operation principle
The 1728 relay is a specially designed "'fast action relay" equipped with 4 x 10 A CO contacts. The basic design is made of two relays included in one relay dust cover :
- one 1804 relay giving fast action < or = 4 ms of the 4 NO contacts (qualified EDF HN 45S25 cl. 2a)
- one 1783 relay, with magnetic arc blowing, for heavy contacts characteristics (breaking capability) - qalified EDF HN 45S25 cl. A1.
Technical features
| Function | instantaneous fast action |
| Presentation | under cover |
| Connection | on front or rear wiring socket |
| Number of mechanical operations | 1.000.000 |
| Operating temperature | - 10 to + 55°C |
| Storage temperature | - 40°C to + 80°C |
| Climatic protection | reinforced climatic protection |
| Shock voltage | 4 KV wave 1,2/50 microseconds |
| Dielectric strength | 2.500 V - 50 Hz - 1 mn. |
| Insulation resistance | 1.000 MOhms (500 VDC new relay) |
| Weight | 500 g. |
Coil data
| Direct current | Alternative current | ||
| Min. nominal voltage DC | 48 V | ||
| Min. nominal voltage AC | 220 V | ||
| Operating range | -20/+10% of nominal voltage | ||
| Power requirement | 6 W / 100 ms on operate - 4 W permanent | ||
Contacts
| Number of contacts | 4 |
| Max. load current | 10 A per contact |
| Short-circuit load | 100 A / 30 ms |
| Response time (bounce time not included) | CT < 4 ms - CR < 20 ms |
Contacts rating
| DIRECT CURRENT | ||||||
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Operation diagram
voir principe de fonctionnement
