Legrand RX³ RCCB Four Pole 100mA (AC Type)

Name: Legrand RX³ RCCB Four Pole 100mA (AC Type)
Brand: HomeRun
SKU: 93CJR
Price: 3360.0 INR
Availability: InStock

₹5,894

₹3,360

Assured 2% CashbackOn purchases above ₹50,000

Incl GST Shipping calculated at checkout.

Ampere

25A

₹3,360

40A

₹3,441

63A

₹4,008

Brand: Legrand
Product: RX³ RCCB Four Pole (4P) 100mA
Available Variants: 25A, 40A, 63A
Sensitivity: 100mA Trip Threshold
Network Configuration: Three-Phase + Neutral
Operating Voltage: 415V AC
Compliance: IS 12640

Secure your three-phase electrical distribution systems with the high-performance Legrand RX³ Four Pole Residual Current Circuit Breaker (RCCB). Specifically built to safe-keep balanced or unbalanced three-phase lines plus neutral networks, this protective switch acts as a vigilant monitor against ground faults. Engineered with a 100mA medium trip threshold, it is mathematically optimized to capture structural earth current leakage before it degrades insulation or initiates electrical fire hazards, rendering it indispensable for comprehensive commercial, residential, and light industrial panel designs.

Key Highlights

Three-Phase Line Fire Shield: Provides full 100mA leakage protection across all 4 poles, actively eliminating fire risk caused by creeping fault currents or insulation tracking faults
Bi-Connect Power Interface: Designed with robust lower terminals that dynamically accommodate traditional distribution wire links alongside industrial fork-style or pin-type supply busbars
Monthly Toggle Validation: Employs a quick-response mechanical manual flip switch paired with a front-panel test button (T) to safely evaluate the mechanical linkage health instantly
Advanced Finger-Safe Housing: Features an engineered thermoplastic chassis with IP20 guarded terminal screens, preventing accidental user contact with live internal components
Unified DIN Rail Mount: Incorporates heavy-duty sliding panel clamps to snap smoothly onto generic 35mm symmetrical mounting rails inside modern distribution boards
Standard Industrial Framework: Built, tested, and certified in complete harmony with standard quality guidelines (IS 12640)

Technical Specifications

Feature / Specification	25A Variant	40A Variant	63A Variant
Brand	Legrand
Product Range	RX³ RCCB
Article Code	4025 23	4025 24	4025 25
Rated Current (Iₙ)	25 A	40 A	63 A
Sensitivity (ΔIₙ)	100 mA
Number of Poles	Four Pole (4P)
Operating Voltage	415 V AC
Network Configuration	Three-Phase + Neutral
Module Width (17.5mm)	4 Modules (72 mm)
Terminal Protection	IP 20

Recommendation & Amperage Selection Guide

Four-pole 100mA installations are critical for balancing multi-phase feeds. Choose your variant capacity based on the collective current limit of the panel:

25A Variant (Article Code: 4025 23): Best for light three-phase household distribution layouts or specialized individual multi-phase motor modules. Applications include small 3-phase residential setups, localized workshop sub-panels, centralized low-draw water pump clusters, and standard multi-room sub-boards
40A Variant (Article Code: 4025 24): Best for mid-tier commercial zones, multi-story duplex spaces, or offices operating synchronized air conditioning lines. Applications include balanced residential main boards, medium commercial showrooms, commercial kitchen lines, and primary machinery control sub-stations
63A Variant (Article Code: 4025 25): Best for heavy-duty incoming service loops or high-load master panel arrays that run complex industrial hardware arrays simultaneously. Applications include entire multi-story buildings, massive commercial retail properties, machining workshops, and main incomer panels requiring robust high-amp load overheads

Why Buy from HomeRun?

Authentic Legrand Product: Verified genuine product sourced from authorized distributors
60-Minute Bangalore Delivery: Express delivery to active service zones for urgent needs
Project-Friendly Availability: Choose the amperage that matches your three-phase panel's collective load

1) Why do I need a 4-Pole RCCB instead of a 2-Pole model?

A 2-Pole RCCB is restricted to single-phase circuits (one live wire and one neutral). A 4-Pole RCCB is mandatory for handling standard three-phase power systems (three distinct live phases — R, Y, B — alongside a shared Neutral wire), ensuring the current sum across all vectors balances out perfectly to zero during normal operations.

2) What causes a 100mA three-phase RCCB to trip?

The device trips when an asymmetry is detected between the incoming phase currents and the returning neutral line. If a fault causes electricity to escape — such as through worn motor winding insulation or damp underground wiring paths — and that leakage hits or exceeds 100mA, the breaker cuts the line instantly to prevent heat generation and potential electrical fires.

3) Is the Neutral line position restricted to a specific side on this switch?

Yes, following standard Legrand international three-phase layouts, the structural terminal paths locate the Neutral line on the right-hand side of the device block, with clear "N" engravings marked visibly adjacent to the screw terminal arrays.

4) Can I pass a higher gauge wiring system into the contact cages?

The integrated terminal ports easily accept hefty distribution conductors up to 35 mm². If your building layout relies on large aluminum supply links exceeding this specification, it is critical to implement a set of Legrand terminal adaptation clips to guarantee a secure, clean terminal fit.

5) Which amperage variant should I choose for my three-phase panel?

Choose 25A for small 3-phase residential setups and localized workshop sub-panels. Choose 40A for balanced residential main boards, medium commercial showrooms, and commercial kitchen lines. Choose 63A for entire multi-story buildings, large retail properties, and main incomer panels handling heavy industrial loads.

Return within 24 hours of delivery for:
- Damaged or defective product
- Wrong or missing item
Product cannot be returned once installed or used
Refer to Refund Policy for complete details

legrand rx3 rccb four pole 100ma three phase earth leakage bangalore electrical