Schneider Electric, TeSys LRD Thermal Overload Relay 1 NO/1 NC, 0.25A, 0.4 A F.L.C, 400mA Contact Rating, 90 W 3

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

Schneider Electric, TeSys LRD Thermal Overload Relay 1 NO/1 NC, 0.25A, 0.4 A F.L.C, 400mA Contact Rating, 90 W 3

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MYR317.43

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RS Stock No.:: 394-9447
Mfr. Part No.:: LRD03
Manufacturer:: 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	0.25, 0.4A
	Product Type	Thermal Overload Relay
	Relay Contact Current	400mA
	Mount Type	Direct
	Series	TeSys LRD
	Pole and Throw Configuration	3
	Power Rating	90W
	Normal State Configuration	1 NO/1 NC
	Terminal Type	Screw Clamp
	IP Rating	IP20
	Reset Method	Automatic & Manual
	Width	45mm
	Adjustable Current Range	0.25 → 0.4 A
	Number of Auxiliary Contacts	2
	Minimum Operating Temperature	-20°C
	Contact Voltage	690V ac
	Maximum Operating Temperature	60°C
	Length	123mm
	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
	Depth	66mm
	Supply Voltage	690V ac

	Select all
	Brand Schneider Electric
	FLC Motor Rating 0.25, 0.4A
	Product Type Thermal Overload Relay
	Relay Contact Current 400mA
	Mount Type Direct
	Series TeSys LRD
	Pole and Throw Configuration 3
	Power Rating 90W
	Normal State Configuration 1 NO/1 NC
	Terminal Type Screw Clamp
	IP Rating IP20
	Reset Method Automatic & Manual
	Width 45mm
	Adjustable Current Range 0.25 → 0.4 A
	Number of Auxiliary Contacts 2
	Minimum Operating Temperature -20°C
	Contact Voltage 690V ac
	Maximum Operating Temperature 60°C
	Length 123mm
	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
	Depth 66mm
	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.