steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
LR3D14
Schneider LR3D14 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Schneider LR3D14 is a thermal overload relay designed for motor protection in industrial control systems. Part of the TeSys range, it features an adjustable current setting of 7–10 A and Class 10A tripping characteristics, helping protect motors against sustained overload conditions.
Suitable for AC and DC networks, this non-differential relay incorporates one normally open and one normally closed auxiliary contact for control and signalling functions. Screw-clamp terminals provide electrical connections, while dedicated stop and reset push-buttons offer straightforward operation.
The LR3D14 mounts directly beneath compatible Schneider LC1D contactors, with separate plate or rail mounting available using suitable accessories. Its compact dimensions of 66 × 45 × 70 mm make it practical for control panel installations. Temperature compensation and an operating range of −20°C to +60°C support use in industrial environments.
Suitable for AC and DC networks, this non-differential relay incorporates one normally open and one normally closed auxiliary contact for control and signalling functions. Screw-clamp terminals provide electrical connections, while dedicated stop and reset push-buttons offer straightforward operation.
The LR3D14 mounts directly beneath compatible Schneider LC1D contactors, with separate plate or rail mounting available using suitable accessories. Its compact dimensions of 66 × 45 × 70 mm make it practical for control panel installations. Temperature compensation and an operating range of −20°C to +60°C support use in industrial environments.
| Specification | Description |
|---|---|
| Manufacturer | Schneider Electric |
| Part Number | LR3D14 |
| Product Range | TeSys Deca |
| Product Type | Non-differential thermal overload relay |
| Description | Adjustable thermal overload relay designed for motor overload protection, with screw-clamp connections and auxiliary contacts for control and signalling circuits. |
| Application | Motor protection |
| Thermal Protection Adjustment Range | 7–10 A |
| Overload Trip Class | Class 10A in accordance with IEC 60947-4-1 |
| Network Type | AC and DC |
| Network Frequency | 0–400 Hz |
| Rated Operational Voltage | 690 V AC for the power circuit, in accordance with IEC 60947-4-1 |
| Rated Insulation Voltage | 690 V to IEC 60947-4-1; 600 V to UL and CSA requirements |
| Rated Impulse Withstand Voltage | 6 kV |
| Auxiliary Contacts | 1 normally open contact and 1 normally closed contact |
| Signalling Circuit Thermal Current | 5 A |
| Auxiliary Contact Operational Ratings | 3 A at 120 V AC, AC-15; 0.22 A at 125 V DC, DC-13 |
| Compatible Contactors | LC1D09, LC1D12, LC1D18, LC1D25, LC1D32 and LC1D38 |
| Mounting Options | Direct mounting beneath a compatible contactor; rail or plate mounting with suitable accessories |
| Terminal Type | Screw-clamp terminals |
| Power Circuit Conductor Capacity | Flexible without ferrules: 1.5–10 mm²; flexible with ferrules: 1–4 mm²; solid: 1–6 mm² |
| Control Circuit Conductor Capacity | Two conductors of 1–2.5 mm², solid or flexible, with or without ferrules as specified |
| Terminal Tightening Torque | 1.7 Nm for power and control terminals |
| Controls | Red stop push-button and blue reset push-button |
| Operating Temperature | −20 to +60 °C without derating |
| Storage Temperature | −60 to +70 °C |
| Temperature Compensation Range | −20 to +60 °C |
| Degree of Protection | IP20 in accordance with IEC 60529 |
| Flame Retardance | V1 in accordance with UL 94 |
| Dimensions | Height: 66 mm; width: 45 mm; depth: 70 mm |
| Net Weight | 0.124 kg |
What is this thermal overload relay used for?
This thermal overload relay is designed for motor protection in industrial control circuits. The LR3D14 is a non-differential, bimetallic device that works with a compatible contactor to respond to motor overload conditions.
What is the adjustable current range?
The thermal protection setting is adjustable from 7 to 10 A. Select the setting to suit the motor’s rated current and the requirements of the installation.
What trip class does this relay have?
It has a Class 10A thermal overload classification in accordance with IEC 60947-4-1. This classification describes its overload tripping characteristics and should be checked against the motor’s starting requirements.
Which contactors are compatible with this relay?
The listed compatible contactors are LC1D09, LC1D12, LC1D18, LC1D25, LC1D32 and LC1D38. Confirm the contactor reference and mounting arrangement before selecting the relay.
How can the relay be mounted?
The relay can be mounted directly beneath a compatible contactor. Separate plate or rail mounting is also possible with the appropriate mounting accessories.
What auxiliary contacts are provided?
The relay includes one normally open contact and one normally closed contact. These provide connections for signalling and control circuit functions.
What type of electrical terminals does it use?
Both the power and control circuits use screw-clamp terminals. The specified tightening torque is 1.7 N·m for both terminal groups.
Which conductor sizes can the terminals accommodate?
The power terminals accept solid conductors from 1 to 6 mm², flexible conductors without cable ends from 1.5 to 10 mm², and flexible conductors with cable ends from 1 to 4 mm². The control terminals accommodate conductors from 1 to 2.5 mm².
What are the dimensions and weight?
The LR3D14 measures 66 mm high, 45 mm wide and 70 mm deep. Its net weight is approximately 0.124 kg, excluding packaging.
What ambient temperature range is suitable for operation?
The specified operating temperature range is −20 °C to +60 °C without derating. Temperature compensation is also specified across this range.
What degree of protection does the relay provide?
The relay is rated IP20 in accordance with IEC 60529. This rating does not provide protection against water, so the surrounding enclosure must suit the installation environment.
What stop and reset controls are fitted?
The relay has a red stop push-button and a blue reset push-button, providing clearly distinguishable controls on the front of the device.
What voltage ratings are specified?
The rated operational voltage for the power circuit is 690 V AC at frequencies from 0 to 400 Hz under IEC 60947-4-1. Rated insulation voltage is 690 V under IEC requirements and 600 V under UL and CSA requirements.
- Providing thermal overload protection for motors with rated currents within the 7–10 A adjustment range.
- Pairing with compatible Schneider TeSys contactors in motor starter assemblies.
- Protecting pump motors against sustained overloads in water circulation and process systems.
- Monitoring motor overloads in conveyor drives and material-handling equipment.
- Providing overload protection for fan and blower motors in ventilation systems.
- Protecting motors used to drive mixers and agitators in industrial processing equipment.
- Providing auxiliary contacts for overload trip indication and motor control circuits.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Delivery
- Logistic partners UPS, FedEx and DHL
- International delivery available
- Premium nine hour delivery service available to anywhere in Europe
- Same day dispatch from group stock
Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
Returns
No hassle returns policy
Dedicated customer support team
Payment
Trade CreditWe understand that credit is a necessary part of business and offer credit agreements on request, subject to status.
Payment optionsWe accept Bank transfers and the following methods of payment:
All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.
Services
Sourcing your part
Global supplier of quality automation and control components
Service Exchange
Dispose of your old unit by exchanging it for a working part.
Repair
A comprehensive repair service for faulty equipment.
Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
Be a Factory Hero.
Get parts fast.
You don’t need tights and a cape to be a hero.
Get parts fast and feel like a legend, just like Jeff.