Rishabh 252-PDO DC Over Voltage Relay
- Brand
- Rishabh
- Model number
- 252-PDO
- Category
- Protection & Monitoring Relays
DC over voltage relay for battery supplies and chargers: externally adjustable time delay (0-10, 0-20 or 0-30 s), 1% preset differential; DPDT contacts, auto reset.
Price and availability on request
Key features
- Adjustable setpoint
- Adjustable time delay
- Internal differential (factory settable)
- LED trip indication
- 2 pole relay contacts
- Auto reset
- DIN-rail or wall mounting
- Applications: battery supplies and battery chargers (under / over voltage, battery level control).
Specifications
| D.C. voltage | 18 to 20 V DC or 20 to 32 V DC |
|---|---|
| Burden | < 3 VA |
| Overload | 1.2 x rated voltage cont., 1.5 x rating for 10 s (BS 6253) |
| Repeatability | > 0.5% of full span |
|---|---|
| Time delay | Externally adjustable, specify 0-10, 0-20 or 0-30 s |
| Differential | Preset to 1% (1 to 15% on request) |
| Type | D.P. changeover |
|---|---|
| Rating | A.C. 240 V 5 A non-inductive; D.C. 24 V 5 A resistive |
| Operations | 0.2 million at the above loads |
| Reset | Automatic |
| Operating temperature | 0 °C to +60 °C |
|---|---|
| Storage temperature | -20 °C to +70 °C |
| Temperature co-efficient | 0.05% per °C |
| Interference immunity | Electrical stress surge withstand and non function to ANSI/IEEE C37 90a |
| Enclosure | DIN-rail with wall mounting facility, flame retardant polycarbonate / ABS |
| Enclosure integrity | IP 50 |
| Dimensions | 55 mm wide x 70 mm high x 112 mm deep |
| Weight | Approx. 0.4 kg |
Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.
Related products
-
Enquire about Rishabh 252-PAO
Rishabh 252-PAO Single Phase Over Current Relay
Single-phase AC over current relay from 1 A / 5 A CT: trips when the current exceeds the 40 - 120% setpoint after an adjustable delay up to 10 s; DPDT contacts, auto reset.
-
Enquire about Rishabh 252-PAU
Rishabh 252-PAU Single Phase Under Current Relay
Single-phase AC under current relay from 1 A / 5 A CT: trips when the current falls below the 40 - 120% setpoint after an adjustable delay up to 10 s; DPDT contacts, auto reset.
-
Enquire about Rishabh 252-PBA
Rishabh 252-PBA Transducer Trip Relay, Low Trip
Trip relay for transducer outputs (0-1 to 4-20 mA or 1 - 50 V DC) that operates on a low signal; adjustable setpoint and delay, DPDT contacts.
-
Enquire about Rishabh 252-PBB
Rishabh 252-PBB Transducer Trip Relay, High Trip
Trip relay for transducer outputs (0-1 to 4-20 mA or 1 - 50 V DC) that operates on a high signal; adjustable setpoint and delay, DPDT contacts.
