Schneider Electric, LRD Thermal Overload Relay 1 NO/1 NC, Trip Dial: 0.25 → 0.4 A, 250mA, 400 mA F.L.C, 400mA Contact
- RS Stock No.:
- 394-9447
- Mfr. Part No.:
- LRD03
- Brand:
- Schneider Electric
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Units | Per unit |
|---|---|
| 1 - 2 | $138.16 |
| 3 - 4 | $134.28 |
| 5 + | $128.79 |
*price indicative
- RS Stock No.:
- 394-9447
- Mfr. Part No.:
- LRD03
- Brand:
- Schneider Electric
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Schneider Electric | |
| FLC Motor Rating | 250mA, 400mA | |
| Product Type | Thermal Overload Relay | |
| Relay Contact Current | 400mA | |
| Series | LRD | |
| Mount Type | Direct | |
| Pole and Throw Configuration | 3 | |
| Power Rating | 90W | |
| Normal State Configuration | 1 NO/1 NC | |
| Terminal Type | Screw | |
| Reset Method | Automatic & Manual | |
| IP Rating | IP20 | |
| Minimum Operating Temperature | -20°C | |
| Number of Auxiliary Contacts | 2 | |
| Adjustable Current Range | 0.25 → 0.4 A | |
| Width | 45mm | |
| Length | 123mm | |
| Maximum Operating Temperature | 60°C | |
| Contact Voltage | 690V ac | |
| Depth | 66mm | |
| Standards/Approvals | CSA C22.2 No 60947-4-1, CSA C22.2 No 60947-5-1, EN 50495, EN/IEC 60947-4-1, EN/IEC 60947-5-1, GB/T 14048.4, GB/T 14048.5, UL 60947-4-1, UL 60947-5-1 | |
| Supply Voltage | 690V ac | |
| Select all | ||
|---|---|---|
Brand Schneider Electric | ||
FLC Motor Rating 250mA, 400mA | ||
Product Type Thermal Overload Relay | ||
Relay Contact Current 400mA | ||
Series LRD | ||
Mount Type Direct | ||
Pole and Throw Configuration 3 | ||
Power Rating 90W | ||
Normal State Configuration 1 NO/1 NC | ||
Terminal Type Screw | ||
Reset Method Automatic & Manual | ||
IP Rating IP20 | ||
Minimum Operating Temperature -20°C | ||
Number of Auxiliary Contacts 2 | ||
Adjustable Current Range 0.25 → 0.4 A | ||
Width 45mm | ||
Length 123mm | ||
Maximum Operating Temperature 60°C | ||
Contact Voltage 690V ac | ||
Depth 66mm | ||
Standards/Approvals CSA C22.2 No 60947-4-1, CSA C22.2 No 60947-5-1, EN 50495, EN/IEC 60947-4-1, EN/IEC 60947-5-1, GB/T 14048.4, GB/T 14048.5, UL 60947-4-1, UL 60947-5-1 | ||
Supply Voltage 690V ac | ||
Schneider Electric LRD Series Thermal Overload Relay, 0.25 to 0.4 A FLC Motor Rating, 3 Pole Configuration - LRD03
This thermal overload relay provides reliable motor protection, ideal for automation and electrical applications. Designed as a 3P thermal overload relay, it operates within a current rating range of 0.25 to 0.4A and features dimensions of 123mm x 66mm x 45mm. The device ensures robust electrical overload protection with an operating temperature range of -20 to +60 °C.
Features & Benefits
• Automatic reset method enhances operational efficiency
• Screw terminal design simplifies installation and maintenance
• Integrated with 1NO + 1NC auxiliary contacts for versatility
• Suitable for direct contactor mounting, maximising space utilisation
• Rated for 690V AC operation, ensuring broad compatibility
• Trip threshold of 130% of rated current protects against overloads
Applications
• Utilised in motor control circuits for efficient protection
• Compatible with various LC1D series contactors for versatility
• Employed in AC and DC network environments
• Ideal for industrial machinery requiring thermal overload protection
What is the maximum current rating supported for signalling circuits?
The permissible current for signalling circuits reaches up to 3A at 120V AC-15, ensuring reliable operation for signalling requirements.
How is the reset process configured for this relay?
The device allows both automatic and manual reset methods, providing flexibility depending on operational needs and safety protocols.
What kind of mounting support is available for this relay?
It can be mounted on a plate, rail, or underneath a contactor using specific accessories, which makes it adaptable for different installation scenarios.
What is the significance of having a trip threshold of 1.14 +/- 0.06 Ir?
This designated trip threshold provides accurate and reliable tripping behaviour, ensuring effective protection against potential overload conditions for connected motors.
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