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31DRPT24 – PTC PROTECT RELAY DRPT 24VAC
Lovato 31DRPT24 is a 24 V AC 50/60 Hz thermistor protection relay with manual or automatic reset, two changeover auxiliary contacts and 35 mm DIN rail mounting.
£154.72
Why Choose the Lovato 31DRPT24 Thermistor Protection Relay?
The Lovato 31DRPT24 is a thermistor protection relay designed for temperature-based protection of motors and compatible electrical equipment. Operating from a 24 V AC, 50/60 Hz supply, it provides a dedicated protection solution for industrial motor control and automation systems.
Part of the Lovato DRPT thermistor protection relay range, the 31DRPT24 supports selectable manual or automatic reset and incorporates a test button for functional checking. Two changeover auxiliary contacts provide control and signalling capability for integration into motor protection circuits.
The relay is designed for standard 35 mm DIN rail mounting and provides IP20 frontal protection. It has a 250 V rated insulation voltage between the supply, inputs and outputs together with a 4 kV rated impulse withstand voltage.
Key Advantages
- Dedicated thermistor protection relay for motor protection applications.
- 24 V AC, 50/60 Hz rated supply.
- Selectable manual or automatic reset.
- Integrated test button for functional checking.
- Two changeover auxiliary contacts for control and signalling.
- Standard 35 mm DIN rail mounting.
- IP20 frontal protection.
- Suitable for installation in any normal operating position.
Key Features
- Lovato DRPT thermistor protection relay.
- 24 V AC rated operational voltage.
- 50/60 Hz operating frequency.
- Manual or automatic reset mode.
- Test button.
- Two changeover auxiliary contacts.
- 250 V rated insulation voltage between supply, inputs and outputs.
- 4 kV rated impulse withstand voltage.
- 250 V auxiliary rated operational voltage.
- Screw terminals.
- Maximum flexible conductor section of 1.5 mm².
- 35 mm DIN rail fixing.
- IP20 frontal protection.
- Conforms to IEC/EN 60255-5.
Thermistor-Based Motor Protection
Thermistor protection relays are used with temperature-sensitive motor protection circuits to monitor thermal conditions within motors and other electrical equipment. When the thermistor circuit detects an excessive temperature condition, the protection relay can change the state of its output contacts so the associated control system can respond.
The Lovato 31DRPT24 combines thermistor protection with manual or automatic resetting, a test function and two changeover auxiliary contacts. Its 24 V AC supply and standard 35 mm DIN rail mounting make it suitable for integration into compatible industrial motor control and protection systems.
Typical Applications
- Thermistor-based electric motor protection.
- Industrial motor control panels.
- Motor starting and protection systems.
- Industrial machinery electrical systems.
- OEM automation and machine-building equipment.
- Control panels requiring DIN rail-mounted thermistor protection.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Reset Type | Manual or automatic | |
| Mounting Type | DIN rail | |
| Monitoring Function | Temperature / thermistor | |
| Coil / Supply Voltage | 24 V AC | |
| Contacts | 2 C/O | |
| Manufacturer | Lovato Electric | |
| Series | DRPT | |
| Model | 31DRPT24 | |
| Product type | Thermistor protection relay | |
| Rated supply voltage | 24 V AC | |
| Rated frequency | 50/60 Hz | |
| Release type | Thermal | |
| Reset mode | Manual or automatic | |
| Test button | Yes | |
| Trip indicator | No | |
| Phase failure detection | No | |
| Auxiliary contacts | 2 changeover contacts | |
| Rated insulation voltage (Ui) | 250 V between supply, inputs and outputs | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Auxiliary rated operational voltage | 250 V | |
| Auxiliary rated impulse withstand voltage | 4 kV | |
| Frontal protection rating | IP20 | |
| Pollution degree | 3 | |
| Terminal type | Screw | |
| Terminal tightening torque | 0.8–1.2 Nm | |
| Maximum flexible conductor section without lug | 1.5 mm² | |
| Maximum flexible conductor section with lug | 1.5 mm² | |
| Storage temperature | -30 to +80 °C | |
| Compensation temperature | -10 to +60 °C | |
| Operating position | Any | |
| Mounting | 35 mm DIN rail | |
| Weight | 294 g | |
| Package dimensions | 84 × 50 × 107 mm | |
| Package volume | 449.4 cm³ | |
| Quantity per package | 1 | |
| EAN13 | 8013975600498 | |
| HS code | 85389091 | |
| Conformity | IEC/EN 60255-5 |
Frequently Asked Questions
What is the Lovato 31DRPT24 used for?
The Lovato 31DRPT24 is a thermistor protection relay designed for temperature-based motor and equipment protection applications.
What supply voltage does the Lovato 31DRPT24 require?
The 31DRPT24 operates from a 24 V AC, 50/60 Hz supply.
Can the Lovato 31DRPT24 be reset automatically?
Yes. The 31DRPT24 supports selectable manual or automatic reset.
How many auxiliary contacts does the Lovato 31DRPT24 have?
The 31DRPT24 incorporates two changeover auxiliary contacts with a rated operational voltage of 250 V.
How is the Lovato 31DRPT24 mounted?
The relay is designed for mounting on a standard 35 mm DIN rail and can operate in any normal mounting position.
Reliable Lovato Motor Protection
The Lovato 31DRPT24 provides thermistor-based protection with a 24 V AC supply, manual or automatic resetting, two changeover auxiliary contacts and standard 35 mm DIN rail mounting for industrial motor control applications.
