Polycab TPN RCBO 30 mA – C-Curve 10 kA RCBO (3 pole + N), 6 A to 63 A, IS 12640-2

The Polycab TPN RCBO 30 mA is a residual current circuit breaker with overcurrent protection (RCBO) for a three-phase circuit with neutral: a single 3P+N device that trips on earth leakage at 30 mA and on overload or short circuit with a C curve and 10 kA breaking capacity, made to IS 12640-2 / IEC 61009-1. Polycab lists it in 8 ratings - 6, 10, 16, 20, 25, 32, 40 and 63 A - at MRP Rs 5,592 to Rs 6,090 per piece (polycab.com, October 2026).

Polycab India Limited is India's largest manufacturer of wires and cables, with 27 manufacturing facilities, 4,300+ authorised distributors, 2,00,000+ retailers and an export presence in 84 countries (polycab.com, October 2026). Its switchgear range covers MCBs, RCCBs, RCBOs, isolators, changeover switches, ACCLs and distribution boards. Jai Enterprises supplies Polycab RCBOs from Bhilai and Raipur all over Chhattisgarh - Bhilai, Raipur, Durg, Korba, Bilaspur, Raigarh, Jagdalpur, Kanker, Ambikapur and every other district - and across India.

Is this the right one for you?

Check these four things before you order:

• You want earth-leakage and overcurrent protection for a three-phase circuit with neutral in one device (triple pole and neutral).
• 30 mA suits the circuit: personal protection against electric shock.
• A C curve suits the load - three-phase pumps, compressors, motors and mixed three-phase loads.
• The rating you need is one of 6, 10, 16, 20, 25, 32, 40 and 63 A and the fault level at the board is within 10 kA.

At a glance

• MRP: Rs 5,592 - 6,090 per piece (polycab.com, October 2026, inclusive of taxes)
• Product: Polycab TPN RCBO 30 mA
• Type: RCBO - RCCB and MCB in one device
• Poles: TPN - triple pole and neutral (3 pole + N)
• Sensitivity: 30 mA
• Tripping curve: C
• Breaking capacity: 10 kA
• Ratings: 6, 10, 16, 20, 25, 32, 40 and 63 A
• Standard: IS 12640-2 / IEC 61009-1
• Item codes: GMB103N001 to GMB103N008

Ratings, item codes and MRP

• 6 A: item code GMB103N001 - MRP Rs 5,592
• 10 A: item code GMB103N002 - MRP Rs 5,592
• 16 A: item code GMB103N003 - MRP Rs 5,592
• 20 A: item code GMB103N004 - MRP Rs 5,592
• 25 A: item code GMB103N005 - MRP Rs 5,592
• 32 A: item code GMB103N006 - MRP Rs 5,592
• 40 A: item code GMB103N007 - MRP Rs 5,663
• 63 A: item code GMB103N008 - MRP Rs 6,090
• MRP basis: MRPs as listed on polycab.com, October 2026, inclusive of taxes; the selling price is confirmed on enquiry

Why choose the Polycab TPN RCBO 30 mA

• Real trip indicator - shows when it has tripped on a fault
• Test button to check the device
• Lockable knob for safe maintenance
• Air-flow channels
• Functionally independent of line voltage (electromechanical) - it does not depend on the supply voltage to trip
• Mid-trip handle (dolly) position after a trip
• Bi-stable DIN clip for easy installation
• Contact position indicator and neutral marking (Polycab catalogue)
• One device per circuit, so an earth leakage on one circuit need not switch off the rest of the board
• Polycab item code and MRP for every rating - GMB103N001 to GMB103N008

How to choose and fit it

Two protections in one. The RCBO trips on earth leakage at 30 mA, like an RCCB, and on overload and short circuit with a C curve (instant trip at 5 to 10 times its rating), like an MCB.

Why per-circuit RCBOs. When each circuit has its own RCBO, an earth leakage on one circuit switches off only that circuit - provided the board's incomer has no RCCB that trips on the same leakage. With one RCCB for the whole board, every circuit behind it goes off.

Sensitivity. 30 mA is used for protection of people against electric shock on three-phase circuits - for example three-phase socket outlets, workshop machines and laboratory equipment. Polycab makes this RCBO in 30, 100 and 300 mA.

Rating. Choose a rating above the normal current of the circuit and within the current-carrying capacity of its cable, as for an MCB.

Testing. Press the test button regularly - many electricians advise once a month - to check that it still trips.

Where it is used

• three-phase circuits with neutral where people need shock protection - workshops, kitchens, laboratories
• circuits that should stay on when another circuit develops an earth leakage

Other Polycab RCBOs

• Polycab SPN RCBO 30 mA - 6 A to 63 A, MRP Rs 4,286 - 5,520
• Polycab SPN RCBO 100 mA - 6 A to 63 A, MRP Rs 4,446 - 5,639
• Polycab SPN RCBO 300 mA - 6 A to 63 A, MRP Rs 4,446 - 5,639
• Polycab TPN RCBO 30 mA (this page) - 6 A to 63 A, MRP Rs 5,592 - 6,090
• Polycab TPN RCBO 100 mA - 6 A to 63 A, MRP Rs 5,081 - 6,227
• Polycab TPN RCBO 300 mA - 6 A to 63 A, MRP Rs 5,081 - 6,227

Related products

• Polycab FP RCCB 30 mA - earth-leakage protection only, for a whole board
• Polycab 10kA C-Curve TPN MCB - overcurrent protection only
• Polycab TPN double-door distribution board
• All Polycab switchgear

Frequently asked questions

What is the difference between an RCBO and an RCCB?

An RCCB trips only on earth leakage and needs an MCB for overload and short circuit. An RCBO does both jobs in one device, so one breaker gives a circuit earth-leakage, overload and short-circuit protection.

What does 30 mA mean?

It is the earth-leakage current at which the RCBO trips. 30 mA is used for protection of people against electric shock on three-phase circuits - for example three-phase socket outlets, workshop machines and laboratory equipment.

Can an RCBO replace an MCB?

Yes - it has a C-curve overcurrent trip with a 10 kA breaking capacity, so it protects the circuit against overload and short circuit as an MCB does, and adds earth-leakage protection.

Which ratings are available?

6, 10, 16, 20, 25, 32, 40 and 63 A, all C curve, 10 kA, in 30 mA. Polycab also makes the TPN RCBO in the other two sensitivities.

What is the MRP of the Polycab TPN RCBO 32 A 30 mA?

Rs 5,592 per piece, item code GMB103N006 - the MRP listed on polycab.com in October 2026, inclusive of taxes. Call +91 9340081159 for the selling price and stock.

Where can I buy the Polycab TPN RCBO 30 mA in Chhattisgarh?

From Jai Enterprises, Bhilai and Raipur, which supplies Polycab switchgear all over Chhattisgarh - Korba, Bilaspur, Raigarh, Jagdalpur, Kanker, Ambikapur and every other district - and across India. Call +91 9340081159 with the rating, quantity and delivery location and we will confirm the price, stock and lead time.

How to order

Supplied by Jai Enterprises, Bhilai and Raipur, to every district of Chhattisgarh and across India. Polycab lists the TPN RCBO 30 mA at MRP Rs 5,592 - 6,090 per piece (polycab.com, October 2026, inclusive of taxes). Call +91 9340081159 or send an enquiry from this page with the rating, the quantity (pieces) and the delivery location, and we will confirm the selling price, stock and lead time.