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LS Electric
LS Electric MT Thermal Overload Relay
Model: MT-32-3H
4-hour response · Pricing in SAR · Delivery across all KSA regions
LS Electric MT Thermal Overload Relay
The LS Electric MT Series Thermal Overload Relay is a bimetallic electromechanical motor protection device designed to protect three-phase induction motors from sustained overload current, phase imbalance, and single-phasing conditions in industrial control applications across Saudi Arabia. Available in current ranges from 0.1 A to 95 A with adjustable current setting dials, the MT relay mounts directly onto LS Electric MC series contactors (MT-12 through MT-95) or panel-mount independently via a DIN rail adapter, covering motor ratings from under 1 kW through to approximately 45 kW in direct mount configurations. Trip class is selectable (Class 10, 20, or 30) on most MT variants, allowing the relay to be matched to the motor starting duty — heavy-duty conveyor motors benefit from Class 20 or 30, while standard pump and fan motors are typically protected with Class 10.
The MT relay provides manual and automatic reset options, and includes a test button for periodic relay trip verification without removing the relay from service — an important maintenance feature in Saudi Arabia's facilities where regular preventive maintenance testing is mandated by industrial safety management systems. A trip indicator flag provides clear visual confirmation of relay operation, and the built-in auxiliary contacts (1 NO + 1 NC) connect directly into the motor control circuit for trip interlock and alarm signalling. Phase loss protection in the MT series uses differential current imbalance detection, which trips faster and more reliably under asymmetric phase loading than conventional single-element designs — particularly important in Saudi Arabia where voltage imbalance from single-phase loads on MV distribution networks is a known motor damage risk.
LS Electric MT overload relays are paired with MC contactors in virtually every LS Electric motor starter assembly in Saudi Arabia. Their direct-mount compatibility with the MC contactor range simplifies panel wiring and reduces assembly time compared to separate-panel-mount relay configurations. The MT relay's competitive SAR price — typically 30–40% below ABB TA-DN and Siemens 3RU2 equivalents at the same IEC rating — makes it the standard choice for cost-conscious Saudi panel builders who need reliable IEC 60947-4-1 compliant motor protection without premium European pricing.
Razz Middle East supplies this item to order, delivered duty-paid across the Kingdom. We offer cross-reference support to identify the correct MT variant as a replacement for ABB, Siemens, or Schneider thermal overload relays currently in service at Saudi industrial facilities.
Technical Specifications
Full specifications for the MT-32-3H
- Current Range
- 0.1–95 A (adjustable)
- Trip Class
- 10, 20, 30 (selectable)
- Phase Loss
- Differential imbalance detection
- Reset
- Manual / Automatic
- Auxiliary Contacts
- 1 NO + 1 NC
- Mount
- Direct on MC contactor or DIN rail
- Standard
- IEC 60947-4-1
- Ambient Temperature
- -5 to +60°C
Key Features & Benefits
- Direct mount on LS Electric MC contactors for compact DOL and star-delta starter assemblies.
- Selectable trip class (10, 20, 30) matches relay response to motor starting duty requirements.
- Differential phase loss detection provides faster, more reliable protection against phase imbalance.
- Test button enables periodic relay trip verification without removing from service.
- 30–40% lower SAR cost versus ABB TA-DN and Siemens 3RU2 equivalents at same IEC rating.
Industrial Applications in Saudi Arabia
- Motor protection in DOL and star-delta starter assemblies throughout Saudi industrial control panels.
- Pump motor protection at NWC, SWCC, and industrial process water systems.
- Fan and compressor motor protection in HVAC central plant and industrial ventilation systems.
- Conveyor and mixer motor protection in manufacturing and processing plants across Saudi Arabia.
- Replacement thermal overload relays at industrial MRO operations replacing worn ABB, Siemens, or Schneider units.
Industrial Supplier in Saudi Arabia
Get a Quote for the LS Electric MT Thermal Overload Relay
We respond within 4 business hours. Send model MT-32-3H for competitive pricing in SAR with delivery across Saudi Arabia and the GCC.
Frequently Asked Questions — MT-32-3H
Common questions from buyers in Saudi Arabia and the GCC
What is the LS Electric MT Thermal Overload Relay (MT-32-3H) and what is it used for?
The LS Electric MT Series Thermal Overload Relay is a bimetallic electromechanical motor protection device designed to protect three-phase induction motors from sustained overload current, phase imbalance, and single-phasing conditions in industrial control applications across Saudi Arabia. Available in current ranges from 0.1 A to 95 A with adjustable current setting dials, the MT relay mounts directly onto LS Electric MC series contactors (MT-12 through MT-95) or panel-mount independently via a DIN rail adapter, covering motor ratings from under 1 kW through to approximately 45 kW in direct mount configurations. Trip class is selectable (Class 10, 20, or 30) on most MT variants, allowing the relay to be matched to the motor starting duty — heavy-duty conveyor motors benefit from Class 20 or 30, while standard pump and fan motors are typically protected with Class 10.
Where can I buy the LS Electric MT-32-3H in Saudi Arabia?
Razz Middle East supplies genuine LS Electric products including the LS Electric MT Thermal Overload Relay (MT-32-3H) 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 MT-32-3H in KSA?
Click "Request Free Quote" on this page or message us the model number MT-32-3H 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 LS Electric products in Saudi Arabia?
Yes. Razz Middle East is an independent industrial supplier, not an appointed LS Electric distributor. We source through LS Electric OEM channels or through authorised LS 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 LS Electric MT 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 MT-32-3H to confirm the lead time for your quantity.
Can the MT-32-3H be supplied for industrial projects in KSA?
Yes. Razz Middle East is an approved vendor to SABIC, Ma'aden, Sadara, Saudi Energy, ACWA Power, Safari Group and others. For project orders we provide the manufacturer's technical documentation and certificates of conformity for your vendor approval file. Contact our project team with your project specification.