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Schneider Electric
Schneider Electric LRD TeSys D Thermal Overload Relay
Model: LRD14
4-hour response · Pricing in SAR · Delivery across all KSA regions
Schneider Electric LRD TeSys D Thermal Overload Relay
The Schneider Electric LRD thermal overload relay is the dedicated overload protection device for the TeSys D contactor family, covering 0.1 A to 150 A in a series of twelve overlapping current ranges that plug directly onto the TeSys D contactor body without interposing wiring — a design that reduces panel assembly time, minimises connection resistance, and ensures mechanical rigidity of the motor starter assembly. The LRD uses a bimetallic thermal sensing element that models motor heat accumulation across start, run, and overload phases, providing motor thermal protection that accounts for prior thermal history rather than just instantaneous current, which prevents nuisance tripping during hot motor restarts common in Saudi Arabia's high-ambient environments.
The LRD includes a test and reset button on the front face for manual trip simulation and reset after overload, a trip indicator flag visible without opening the panel, and a stop auxiliary contact output that opens the motor starter control circuit when the relay trips — providing automatic motor stopping without PLC intervention. Optional add-on auxiliary contact blocks provide an alarm (NO) contact output that can signal an imminent overload condition before the relay trips, enabling predictive warnings to the building management or SCADA system. The LRD's ambient temperature compensation mechanism adjusts the trip threshold by approximately 0.6% per degree Celsius, preventing over-protection in cold conditions and under-protection in the 50°C+ ambient temperatures common in Saudi summer plant rooms.
The TeSys LRD relay is the most widely used motor overload relay in Saudi Arabia, present in the enormous installed base of TeSys D starter assemblies across the Kingdom's industrial, commercial, and infrastructure sectors. Every DOL motor starter built to the standard Schneider Electric TeSys D assembly uses an LRD relay, giving it a directly proportional market presence to the TeSys D contactor. Emergency replacement supply is a critical service requirement, as a failed LRD overload relay is a common cause of motor starter downtime in Saudi industrial plants.
Razz Middle East supplies LRD overload relays in all twelve standard current ranges from 0.1 A to 150 A for duty-paid delivery, with phase failure sensitivity selection and manual/auto reset options across all ratings.
Technical Specifications
Full specifications for the LRD14
- Current Range
- 0.1–150 A (12 overlapping ranges)
- Direct Plug-in
- TeSys D contactor body
- Sensing
- Bimetallic thermal element
- Temperature Compensation
- ±0.6% per °C
- Aux Contacts
- 1 NO (alarm) + 1 NC (trip stop)
- Reset
- Manual or auto-reset selectable
- Phase Failure Sensitivity
- Class 10 or Class 20
- Trip Indication
- Front-face trip flag
- Standard
- IEC 60947-4-1
Key Features & Benefits
- Direct plug-in connection to TeSys D contactor body eliminates interposing wiring, reduces panel assembly time by 15 minutes per starter assembly, and ensures permanent low-resistance current path between contactor and overload relay.
- Bimetallic thermal model accounts for accumulated motor heat across prior start and run history, preventing nuisance tripping during hot motor restarts common in Saudi Arabia's high-ambient industrial environments.
- Ambient temperature compensation mechanism adjusts trip threshold across the operating temperature range, maintaining accurate motor protection at both 10°C winter nights and 50°C summer plant room conditions.
- Trip indicator flag visible on the relay front face without opening the panel allows maintenance technicians to immediately identify which motor circuit has tripped during a production fault investigation.
- Alarm (NO) auxiliary contact output signals an approaching overload condition before the relay trips, enabling integration into SCADA and BMS systems for predictive maintenance alerts in critical motor circuits.
- Manual or auto-reset selection allows appropriate recovery behaviour: manual reset prevents automatic restart of critical process pumps after overload until an operator inspects the motor, while auto-reset suits non-critical fan applications.
- Phase failure sensitivity class covers both class 10 (fast trip for small motors) and class 20 (extended start allowance for high-inertia fan motors), matching protection timing to the motor and load characteristics.
Industrial Applications in Saudi Arabia
- Motor overload protection in ARAMCO Eastern Province facility DOL and Y/D motor starters for pump, fan, and compressor motors throughout oil production and processing infrastructure.
- TeSys D DOL starter assembly completion relay for NWC pump station panel builders, where LRD direct plug-in reduces panel assembly time and provides the required IEC 60947-4-1 compliant overload protection.
- Commercial building services motor starter overload protection for HVAC pump and fan motors across hotels, offices, and residential towers in Riyadh, Jeddah, and Dammam, where rapid replacement availability minimises downtime.
- Emergency replacement relay supply for the Kingdom-wide TeSys D installed base, where a failed LRD relay is a common cause of motor circuit downtime requiring duty-paid delivery from Razz Middle East's order-based supply.
- Industrial conveyor and mixer motor overload protection at MODON industrial estate manufacturing facilities, where auto-reset selection allows non-critical conveyor motors to restart automatically after thermal recovery.
- SABIC process plant motor protection relay in DOL starter panels at Jubail petrochemical complexes, where phase failure sensitivity class 10 provides fast tripping response to single-phasing supply faults.
- Building services fan coil unit motor protection in commercial hotels and healthcare facilities across Makkah and Madinah, where the high occupancy seasons demand reliable motor protection with minimal maintenance intervention.
Industrial Supplier in Saudi Arabia
Get a Quote for the Schneider Electric LRD TeSys D Thermal Overload Relay
We respond within 4 business hours. Send model LRD14 for competitive pricing in SAR with delivery across Saudi Arabia and the GCC.
Frequently Asked Questions — LRD14
Common questions from buyers in Saudi Arabia and the GCC
What is the Schneider Electric LRD TeSys D Thermal Overload Relay (LRD14) and what is it used for?
The Schneider Electric LRD thermal overload relay is the dedicated overload protection device for the TeSys D contactor family, covering 0.1 A to 150 A in a series of twelve overlapping current ranges that plug directly onto the TeSys D contactor body without interposing wiring — a design that reduces panel assembly time, minimises connection resistance, and ensures mechanical rigidity of the motor starter assembly. The LRD uses a bimetallic thermal sensing element that models motor heat accumulation across start, run, and overload phases, providing motor thermal protection that accounts for prior thermal history rather than just instantaneous current, which prevents nuisance tripping during hot motor restarts common in Saudi Arabia's high-ambient environments.
Where can I buy the Schneider Electric LRD14 in Saudi Arabia?
Razz Middle East supplies genuine Schneider Electric products including the Schneider Electric LRD TeSys D Thermal Overload Relay (LRD14) across all regions of Saudi Arabia — Riyadh, Jeddah, Dammam, Al Khobar, Jubail, Yanbu, Mecca, and Medina. We source fast-moving items to order and can source specialist configurations. Request a quote on this page for same-day pricing.
How do I get the best price for the LRD14 in KSA?
Click "Request Free Quote" on this page or message us the model number LRD14 on WhatsApp. Our technical sales team responds within 4 business hours with a competitive price in SAR and a confirmed delivery lead time — with no hidden charges or handling fees.
Does Razz Middle East supply genuine Schneider Electric products in Saudi Arabia?
Yes. Razz Middle East is an independent industrial supplier, not an appointed Schneider Electric distributor. We source through Schneider Electric OEM channels or through authorised Schneider Electric distributor channels and supply 100% genuine product with full manufacturer warranty and documentation, serving the oil & gas, petrochemical, power generation, water, construction and manufacturing sectors across the Kingdom.
What is the delivery lead time for the Schneider Electric LRD TeSys D Thermal Overload Relay in Saudi Arabia?
Items are sourced to order and delivered duty-paid, typically 2-3 weeks, to Riyadh, Dammam, Jeddah and the Eastern Province. Project orders and non-standard configurations can take longer. Contact us with the exact model number LRD14 to confirm the lead time for your quantity.
Can the LRD14 be supplied for ARAMCO, SABIC, or NEOM projects in KSA?
Yes. Razz Middle East has experience supplying Schneider Electric equipment to major industrial projects and EPC contractors across Saudi Arabia. We can provide full technical documentation, Material Inspection Reports (MIR), and certificates of conformity to meet vendor approval requirements. Contact our project team to discuss your specific project requirements.
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