Contactors & Overload (O/L) Relays
Contactors & Overload Relays switch a load and provide compatible overload protection within an approved starter circuit.
Product-type reference. The supplied make and configuration are confirmed in your quotation.
Buy contactors and overload relays in Kolkata
Tirupati Power Enterprises supplies contactors and overload relays for industrial maintenance, panel building and project purchasing. For a contactor price enquiry, send the full part number or identify the load, operating voltage, utilisation category and coil supply. For a thermal overload relay, include the motor nameplate current and required setting range. A photograph of the front label and side markings helps separate similar-looking references.
This range covers individual switching and overload components. If you require a complete DOL or star-delta starter, include the enclosure, protective device, controls and wiring scope as a separate assembly requirement. Procurement teams in Kolkata, West Bengal, Odisha and Assam can send a line-by-line schedule with the plant delivery PIN code and required date.
Contactors & Overload Relays: specifications and ordering
Selection and compatibility
Switch a load and provide compatible overload protection within an approved starter circuit.
A contactor is not an overload relay or short-circuit protective device. The complete coordinated combination must suit the motor and starting duty.
Related variants to specify
These descriptions share this buying page. Name the exact variant, manufacturer and reference in your enquiry; they are not automatically interchangeable.
- Contactors
- Overload Relays
Information to include in your RFQ
Send these specifications with your enquiry. They help us match the product and confirm what the quotation includes.
Selection requirements for this product type |
|---|
Load current and utilisation category |
Coil/control supply and auxiliary contacts |
Relay range, trip class and reset |
Short-circuit coordination and mounting |
Replacement and quotation checks
For a replacement, send the existing contactors & overload relays reference and photographs of its markings, connections and mounting. Include the equipment drawing or datasheet where available. Identify which functions must remain unchanged and whether an alternative make is acceptable.
Tirupati Power Enterprises supplies industrial electrical requirements from Kolkata for customers in West Bengal, Eastern India and elsewhere in India. Share the quantity, required date and delivery PIN code. The quotation confirms the exact make and reference, configuration, availability, documents, price, taxes and delivery terms; this page does not promise ready stock or a fixed price.
Related products and buying guidance
Browse switchgear requirements
Miniature Circuit Breakers (MCB)
Moulded Case Circuit Breakers (MCCB)
Motor Protection Circuit Breakers (MPCB)
Request a line-by-line quotation
Sources and further reading
Schneider Electric low-voltage products
Contactor and overload relay selection schedule
Compare the contactor and relay as a coordinated combination. The same ampere number can refer to different duties; a coil-voltage suffix can also change the item being supplied.
Selection point | Specify in your enquiry | Check before ordering |
|---|---|---|
Load duty | Motor, heater or other load; operating voltage; AC-3/AC-3e, AC-1 or specified duty | Use the manufacturer rating for that duty, not a general current label |
Coil and control circuit | AC or DC coil, actual voltage and frequency where applicable | Match the control supply and suppression/accessory requirements |
Power and auxiliary contacts | Number of main poles; required NO/NC auxiliaries | Identify built-in contacts and separately ordered blocks |
Overload relay | Motor current, adjustment range, trip class and reset mode | Confirm mounting compatibility and application requirements |
Starter combination | Breaker/fuse reference, contactor, overload and fault duty | Request the manufacturer coordination information for the combination |
Replacement fit | Existing code, dimensions, mounting and terminal layout | Obtain approval for any alternative reference before supply |
Price comparison: ask for the complete configuration
A contactor price without its coil code, duty rating and accessories is difficult to compare. Ask whether the offer includes the overload relay, auxiliary block, mechanical interlock, suppressor and mounting adapter. Identify these as separate lines where needed. Compare the same make and complete reference, quantity break, GST treatment and freight; a complete starter price should not be compared with a bare contactor. Availability and dispatch dates need confirmation against the actual order.
Send a purchase-ready enquiry
For a repeat purchase, copy the complete old reference rather than only the series name. Include coil markings, relay range and a clear mounting photograph. State whether an exact replacement is mandatory or a technically reviewed equivalent may be proposed.
For a new panel, attach the motor schedule and control supply details. Mark reversing, star-delta or frequent switching duties so the offer can distinguish component selection from the complete circuit design.
- Make, full contactor code and coil supply, or load duty and operating voltage.
- Motor full-load current, overload range, trip class and reset requirement.
- Auxiliaries, interlocks, suppression and protection-device references.
- Quantity per reference, required documents, delivery location and deadline.
Checks before you approve the order
Read the duty rating
Schneider’s LC1D09M7 manufacturer record illustrates why utilisation duty, pole arrangement and coil code belong in the same selection. Its ratings are specific to that reference.
Separate switching from protection
A contactor performs switching; an overload relay does not replace the required short-circuit protective device. Have the complete circuit combination checked.
Approve substitutions deliberately
A matching current rating does not establish identical coil behaviour, terminals, auxiliaries or coordination. Keep the proposed replacement reference on the purchase order.
Buying guidance and technical reference
Related buying ranges and detailed guidance
Motor Protection Circuit Breakers (MPCB)
Contactor Selection Guide: Load Duty, Coil Voltage and Coordination
DOL Starter Buying Checklist: Motor, Coil & Protection
Motor Starter Prices: Compare Complete Quotations
Manufacturer technical reference
Schneider Electric: LC1D09M7 duty, coil and contact specifications
Selection references
Use the selected manufacturer’s current datasheet to confirm the exact model. These references explain selection principles.
Questions about Contactors & Overload (O/L) Relays
What should I check before selecting contactors & overload relays?
A contactor is not an overload relay or short-circuit protective device. The complete coordinated combination must suit the motor and starting duty.
What information is needed to quote contactors & overload relays?
Provide load current and utilisation category; coil/control supply and auxiliary contacts; relay range, trip class and reset; short-circuit coordination and mounting. Include the quantity, requested make or existing reference and delivery PIN code.
What details are needed for a contactor price?
Send the make, complete part number including coil suffix, quantity and required accessories. Without a part number, provide load duty, voltage, current, poles and control supply so that a reference can be proposed.
Can I select a contactor only by motor HP?
No. Motor power is only one input. Confirm operating voltage, motor current, utilisation duty, switching requirements and the manufacturer’s selection data.
Is the overload relay included with every contactor?
Do not assume it is included. State whether you require the bare contactor, an overload relay, auxiliaries or a complete assembled starter and have the quotation list the scope.
Can an overload relay be fitted to any contactor?
Mounting systems and tested combinations vary. Send both references; check the manufacturer’s compatible relay, mounting adapter and coordination data.
Can you quote for delivery outside Kolkata?
Send the plant address and PIN code in West Bengal, Odisha, Assam or elsewhere in India. The offer will confirm availability, freight and dispatch terms for that destination.
Relevant products and guidance
A motor starter price is comparable only when the starting method, motor duty, control voltage, protection, enclosure and included parts are defined.
Read articleBuying GuidesDOL Starter Selection: Motor, Coil and ProtectionDOL starter selection needs the motor nameplate current and voltage, starting duty, control supply and coordinated protection.
Read articleBuying GuidesContactor Selection: Load Duty, Coil and ProtectionContactor selection depends on the load, utilisation category, operating voltage and current, switching duty and coil supply.
Read articleNeed this for your application?
Send the specification, quantity and delivery PIN code. Our Kolkata team quotes supply across India, including eastern India, with availability and freight confirmed for your order.