Eaton Thermal Overload Relays

Introduction

Protecting motors is non-negotiable in industrial setups — whether it’s a pump, conveyor or HVAC fan, downtime hits hard. That’s where thermal overload relays come in: they monitor current/temperature and safely trip the motor when the load becomes unsafe. The Eaton Thermal Overload Relay range brings fits for everything from small motors to large industrial drives — and we at Shansen Enterprises (Coimbatore, serving all-India) are your authorised channel partner ready with expertise, stock and quotes via WhatsApp.

Key Features

Adjustable current setting to match motor full-load current (FLA)
Phase-loss / imbalance protection (in many models)
Ambient compensation (ensures reliable operation across Indian site temperatures)
Mounting options: direct on contactor or panel/separate mounting
Auxiliary contacts: 1 NO + 1 NC in many models for signalling/trip indication
Electronic versions (for advanced protection/monitoring) available
Compliance to global and Indian standards (IEC / UL / CSA)
Compact footprint, easy installation and maintenance

Why Choose Eaton (via our channel)

You want reliability, availability and support — that’s exactly what Eaton brings: globally trusted motor protection, wide product range, localized availability in India. As your authorised partner in Coimbatore serving customers all over India, we ensure you get the correct specification, prompt delivery and technical assistance. When motors are mission-critical, this peace of mind matters.

Ideal For (Use Cases)

Manufacturing plants (textile, chemical, packaging) where motors drive pumps, mixers, conveyors
Motor Control Centres (MCCs) in large industrial setups
Machine builders & OEMs needing compact, reliable motor protection for small to medium machines
Retrofitting older systems where standardized, modern protection is needed
Harsh/variable environments (typical of Indian industrial sites) where ambient compensation and phase-loss protection add value

Specification Table

Specification	Details (typical values)
Adjustable current setting	Example: 0.1-12 A for small ZE series, up to >1000 A for electronic versions.
Rated operational voltage (Ue)	Up to 690 V in many models.
Mounting type	Direct mounting on contactor or separate mounting based on model.
Trip class / time delay	For example Class 10 for many bimetal units; electronic versions selectable 10/20/30
Auxiliary contacts	Typically 1 N/O + 1 N/C for signalling/trip indication.
Ambient/Environment	Ambient compensated versions available (-40 °C to +75 °C) for wider site conditions.
Standards & approvals	IEC/EN 60947-4-1, UL, CSA etc.

WhatsApp Quote

📲 Want a quote or technical support right away?
Send us a WhatsApp at 94426-33195, mention the model of Eaton Thermal Overload Relay you need and your application details (motor current, voltage, mounting style). We’ll respond with availability, pricing and documentation faster than you’d think.

Additional Info Table

Topic	Details / Tips
Selection Checklist	• Get motor full-load current (FLA) from name-plate. • Choose relay whose adjustable setting covers that FLA. • Consider starting duty / trip class if heavy inertia load. • Check mounting style (direct vs separate). • Check environment (temperature, dust, vibration).
Installation Tips	• Install vertically if required. • Use correct wire size and heater elements as per datasheet. • For ambient compensated versions, standard installation; non-compensated versions may need adjustment for ambient.
Maintenance Advice	• Periodically inspect for signs of overheating, corrosion. • Ensure ambient ventilation is adequate. • For electronic versions, review fault logs/diagnostics.
Common Mistakes	• Oversizing relay too far above motor FLA – leads to poor protection. • Ignoring phase-loss protection requirement. • Installing in hot enclosure without ambient compensation.