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Schneider Electric LRD Thermal Overload Relay 1NO + 1NC, 0.25 → 0.4 A F.L.C, 400 mA Contact Rating, 3P, TeSys

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£60.24

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RS Stock No.:
394-9447
Mfr. Part No.:
LRD03
Brand:
Schneider Electric
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Brand

Schneider Electric

FLC Motor Rating

0.25 → 0.4 A

Contact Current Rating

400 mA

Range

TeSys

Pole Configuration

3P

Series

LRD

Mounting Style

Direct Contactor

Normal State Configuration

1NO + 1NC

Reset Method

Automatic, Manual

Terminal Type

Screw

Number Of Auxiliary Contacts

2

Width

45mm

Depth

66mm

Length

123mm

Minimum Operating Temperature

-20°C

Maximum Operating Temperature

+60°C

Better World Verification

Green Premium

Better World Product

Yes

Operating Temperature Range

-20 → +60 °C

Contact Voltage Rating

690 V 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.