Moulded Case Circuit Breakers (MCCB)
Moulded case circuit breakers (MCCBs) protect and switch low-voltage distribution circuits. TPE sources the specified frame, poles, trip unit and accessories, with fault duty and coordination checked against the breaker schedule.
Product-type reference. The supplied make and configuration are confirmed in your quotation.
MCCBs for industrial feeders and replacement requirements
Tirupati Power Enterprises supplies and sources moulded case circuit breakers (MCCBs) from Kolkata for industrial distribution and panel requirements. Send the approved breaker schedule or the existing device reference for a quotation. We identify the proposed make, series, trip unit and accessory scope before the order is agreed.
A price request such as “100 amp MCCB” leaves several product choices unresolved. Rated current, poles, breaking capacity at the operating voltage, trip functions and mechanical fit all affect which breaker belongs in the offer. Use this page to prepare a comparable price enquiry; electrical selection remains with the responsible project engineer.
| Requirement | What to specify | Buying implication |
|---|---|---|
| New feeder or panel BOQ | Approved current, voltage, fault duty, poles and trip requirements. | Quote the breaker and required accessories as an identifiable configuration. |
| Existing MCCB replacement | Full nameplate, part number, trip-unit markings and mounting/terminal photographs. | Checks the electrical and physical replacement scope. |
| 100A, 125A, 250A or another current | Current rating plus the remaining approved selection fields. | Current alone is not an orderable product specification. |
MCCB ratings: current, poles, Icu/Ics and trip unit
Record the frame/series and the actual trip-unit rating or settings where applicable. The frame designation and the operating current setting are not necessarily the same value. State rated operational voltage, AC/DC duty and frequency so the correct published ratings can be checked.
Icu is rated ultimate short-circuit breaking capacity; Ics is rated service short-circuit breaking capacity. Compare both at the applicable operating voltage using the selected manufacturer documentation. Protection coordination, fault level and the required trip settings must be established for the installation.
| Requirement | What to specify | Buying implication |
|---|---|---|
| Current and frame | Required current, frame/series and trip-unit reference or setting range. | Distinguishes the assembly size from the actual protection requirement. |
| Poles and neutral | 3P, 4P or approved arrangement; neutral switching/protection requirements. | A pole-count change needs the system design to support it. |
| Fault duty | Required Icu and Ics in kA at the stated voltage. | An isolated kA number without voltage is incomplete. |
| Trip unit | Thermal-magnetic or electronic; fixed/adjustable functions and approved settings. | Same-current breakers can have different protection capabilities. |
| Accessories | Rotary handle/shaft, shunt or undervoltage release, auxiliary/alarm contacts. | Accessory part numbers, supply voltages and mounting must match the series. |
| Physical installation | Dimensions, mounting holes, terminals, spreader links and enclosure interfaces. | A replacement must fit the panel as well as meet electrical requirements. |
100 amp MCCB price enquiries: 3 pole versus 4 pole
For a 100A enquiry, specify poles, voltage, required Icu/Ics, trip type, exact make/series and accessories. A 100A 3P price and a 100A 4P price refer to different configurations. Keep both lines separate if alternatives are being considered, and obtain approval for the actual neutral arrangement.
MCCB price: compare the complete breaker configuration
Request a current MCCB price against the exact reference or an approved specification. We confirm the offered configuration and availability with the quotation. A generic marketplace rate or an older manufacturer list price may exclude accessories, taxes, delivery or the trip unit needed for your application.
Compare identical current, poles, voltage, breaking capacity, release type and accessory scope. Ask the offer to separate base breaker, operating mechanism, releases/contacts and terminal accessories where supplied separately. Confirm quantity breaks, GST, freight, dispatch time and quotation validity.
| Requirement | What to specify | Buying implication |
|---|---|---|
| Base device | Make, series, catalogue number and complete trip-unit configuration. | Avoids comparing two different breakers under the same current label. |
| Accessories | Handle/shaft, releases, contacts, terminal hardware and quantities. | Prevents an apparently cheaper offer omitting installation items. |
| Commercial terms | Quantity, destination PIN code, GST, freight and required date. | Defines the delivered scope and approval timeline. |
MCCB replacement and approved equivalents
Send photographs of every nameplate and trip-unit label, plus terminal and mounting views. State which accessory functions and control voltages must be retained. If the original reference is obsolete, request a documented alternative for review rather than accepting a same-amp substitution.
For industrial sites in Kolkata, West Bengal, Odisha, Assam and the rest of India, send the actual delivery PIN code and shutdown or project date. Our team confirms sourcing and logistics in the quotation; a catalogue page is not a statement of ready stock.
- Check the prospective fault duty and breaker ratings at the actual voltage.
- Have the responsible engineer review selectivity, trip settings and any proposed equivalent.
- Confirm terminal geometry and the compatibility of existing handle/release accessories.
- Approve the complete proposed reference before placing the purchase order.
Make your enquiry ready to price
Use this blank CSV to record each item separately, including units, approved references and delivery requirements.
Download mccb rfq sheetFill the sheet and attach it to your enquiry. Your own BOQ or drawing is equally useful.
Check the commercial scope
Ask the quotation to identify the proposed construction or make, quantities and units, availability, price, taxes, freight and lead time. Review exclusions and any alternatives before placing the order.
Matching products and further guidance
Technical references and scope
Buying guidance prepared for Tirupati Power Enterprises. Primary references checked on . Use the selected product documentation and the agreed project specification for the actual order.
These references explain selection and specification. They do not establish TPE stock, brand authorisation or certification of a proposed product.
Selection and compatibility
Provide low-voltage circuit interruption and protection through a selected case and trip unit.
Information to include in your RFQ
Selection requirements for this product type |
|---|
Rated current, frame size and poles |
Voltage and Icu/Ics fault-duty requirements |
Trip functions, settings and coordination |
Mounting, terminals and auxiliary accessories |
Replacement and quotation checks
For a replacement, send the existing moulded case circuit breakers (MCCB) 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.
Related products and buying guidance
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Request a line-by-line quotation
Sources and further reading
Schneider Electric low-voltage products
Work with our Kolkata team
Electrical procurement since 1991. Electrical suppliers and stockists, with custom panel and accessory manufacturing.
9 Pollock Street, 1st Floor, Suite B16, Kolkata - 700001
Customer visits: Monday–Saturday, 10:00–18:30. Sunday closed.
GST: 19AESPK5930K1ZU · UDYAM-WB-10-0015130
Before you request a quotation
What should I check before selecting moulded case circuit breakers (MCCB)?
Frame rating is not the same as the configured protection setting. Confirm trip-unit functions and the installation's prospective fault level.
What information is needed to quote moulded case circuit breakers (MCCB)?
Provide rated current, frame size and poles; voltage and Icu/Ics fault-duty requirements; trip functions, settings and coordination; mounting, terminals and auxiliary accessories. Include the quantity, requested make or existing reference and delivery PIN code.
What details are needed for an MCCB price quotation?
Send current, poles, operating voltage, required Icu/Ics, trip type, preferred make/series, accessories, quantity and delivery PIN code. For replacements include the full existing part number and nameplate photographs.
What is the price of a 100 amp MCCB?
The price depends on poles, voltage, Icu/Ics, make/series, trip unit and accessories. Send the exact reference or complete approved specification for a current item-specific quotation.
What is the difference between Icu and Ics?
Icu is rated ultimate short-circuit breaking capacity and Ics is rated service short-circuit breaking capacity. Check both in the selected device documentation at the required operating voltage.
Can a 3 pole MCCB be replaced with a 4 pole MCCB?
Pole and neutral arrangements must follow the system design. A change also affects dimensions, terminals and panel interfaces; it needs engineering review rather than a price-only decision.
Can I replace an MCCB with another make of the same amperage?
Current alone does not establish equivalence. Check fault duty, voltage, trip functions/settings, poles, accessories, mechanical fit and protection coordination before approving another make.
Which brands can I include in an MCCB enquiry?
Specify the approved make, such as Schneider Electric, ABB, Siemens or Lauritz Knudsen, and the series or part number. TPE checks sourcing and identifies the offered item; listing a make does not imply authorised dealership or stock.
Relevant products and guidance
For electrical supplies in Kolkata, prepare an itemised BOQ with makes or references, ratings, quantities and delivery details.
Read articleBuying GuidesMCCB Selection: Current, Fault Duty and Trip SettingsMCCB selection starts with the circuit current, voltage, prospective fault level and protection duties.
Read articleNeed this for your application?
Send the breaker schedule or exact replacement reference, accessories and quantity for a comparable MCCB quotation.