Rishabh 252-PTU Thermocouple Low Trip Relay
- Brand
- Rishabh
- Model number
- 252-PTU
- Category
- Protection & Monitoring Relays
Thermocouple relay that trips below a temperature setpoint, with upscale burn-out protection; low trip 0 - 80%, delay up to 10 s; DPDT contacts.
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: under / over temperature, hot spot detection.
Specifications
| Break protection (TBP) | Upscale drive is standard |
|---|---|
| Cold junction compensation (CJC) | Available on application |
| Repeatability | > 0.5% of span |
|---|---|
| Hysteresis | 2% of span (factory settable) |
| Adjustment | Low trip 0 - 80%, high trip 40 - 120% |
| Time delay | Up to 10 s adjustable, 30 s maximum |
| A.C. 50 / 60 Hz | 120 V or 240 V (±20%) (57 to 480 V) |
|---|---|
| D.C. | 12, 24, 48 or 120 V (±20%) |
| Burden | 4 VA maximum |
| Voltage withstand | 1.2 x rated voltage cont., 1.5 x rating for 10 s (BS 6253) |
|---|
| 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.
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