Schneider Electric RHT428B
MPNRHT428B
Obsolete
on-delay timing relay with suppressor - 0.2..300 s - 4 C/O low level - 24V AC/DC
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Control type | Selector switch |
| Time delay type | On-delay |
| Range of product | Zelio Relay |
| Product or component type | Plug-in relay Timing relay |
| Contacts type and composition | 4 C/O |
| Maximum voltage drop | <100 V for 3 A at 24 V |
| Coil voltage | 24 V AC/DC 50/60 Hz |
| Voltage | 250 V |
| Control circuit voltage limits | 0.8...1.1 Uc conforming to IEC 60255 |
| [Ithe] conventional enclosed thermal current | 1 A 40 °C |
| Terminals description ISO n°1 | (A1-A2)CO (41-42-44)OC (21-22-24)OC (31-32-34)OC (11-12-14)OC |
| Shock resistance | 50 gn for 11 ms conforming to NF C 20-608 |
All specifications
| Parameter | Value |
|---|---|
| Vibration resistance | 6 gn (f= 10...55 Hz) conforming to IEC 60068-2-6 6 gn (f= 10...55 Hz) conforming to NF C 20-616 |
| CAD overall depth | 108 mm |
| CAD overall width | 33 mm |
| CAD overall height | 43 mm |
| Mechanical durability | 20000000 cycles |
| Standards | IEC 60255 NF C 45-250 VDE 0435 |
| Reset time | 100 ms |
| Status LED | With |
| Switching time | 1...3 ms AC for energisation/de-energisation 0.5...6 ms AC for de-energisation/energisation 1...4 ms DC for energisation/de-energisation 1.2...4 ms DC for de-energisation/energisation |
| Repeat accuracy | +/- 1 % |
| Time delay range | 15...300 s 0.2...3 s 1.5...30 s |
| Contact operation | Low level |
| Device short name | RHT |
| Average resistance | 30 mOhm at 20 °C |
| Operating position | Any position |
| Contact bounce time | <= 10 ms |
| Dielectric strength | 2500 V |
| Protective treatment | TC |
| Immunity to microbreaks | 10 ms during time delay 2 ms after time delay |
| Average coil consumption | 2.5 W at 20 °C |
| Minimum switching capacity | 50 mVA at 1 mA, 1 V |
| Coil interference suppression | With |
| Average coil consumption in | 2.9 at 20 °C |
| Setting accuracy of time delay | +/- 15 % of full scale |
| Ambient air temperature for storage | -40...70 °C |
| Ambient air temperature for operation | -5...40 °C conforming to IEC 60255 |
MPN
RHT428B