Lauritz Knudsen Tripper, RCCB, 40A | 4 Pole | 300mA | Finger proof IP20 terminals | 415V AC | ISI Certified

About the Product

The Tripper RCCB 40A FP 415V AC 300mA is a robust & high-performance Residual Current Circuit Breaker (RCCB) designed for three phase electrical systems. It provides dependable protection against earth leakage faults & is ideally suited for applications where fire protection & upstream system safety are critical.

With a 40A current rating & a 300mA residual current sensitivity, this RCCB is primarily intended for detecting higher leakage currents that could lead to insulation failure & electrical fires. The four pole (FP) configuration ensures simultaneous disconnection of all three phases along with the neutral conductor, ensuring complete circuit isolation during fault conditions.

How the RCCB Works

This RCCB continuously monitors current flow across all three phases & the neutral conductor:

• Detects imbalance between incoming & outgoing current

• Identifies leakage current flowing to earth

• Trips automatically when leakage exceeds 300mA

• Disconnects all three phases & neutral simultaneously

• Helps prevent fire hazards caused by sustained leakage currents

This ensures safe & stable operation of three phase electrical systems.

Technical Specifications

• Rated current: 40A

• Poles: Four pole (FP – 3 phase + neutral)

• Rated voltage: 415V AC

• Residual current sensitivity: 300mA

• Function: Earth leakage protection

• Application: Fire protection & upstream safety circuits

Construction & Design

The RCCB is engineered for durability & long-term performance:

• Four pole design for complete phase & neutral isolation

• Compact modular construction

• DIN rail mountable for easy installation

• High precision tripping mechanism

• Robust internal components for long service life

Safety & Protection

• Protects against earth leakage faults

• Designed for fire prevention applications

• Reduces risk of insulation-related electrical hazards

• Ensures full disconnection of all phases & neutral

• Enhances overall system safety & reliability

Mounting & Durability

• DIN rail mountable for quick installation

• Suitable for distribution boards & control panels

• Compact design for efficient panel space utilization

• Designed for long mechanical & electrical life

• Reliable under continuous medium to high load operation

Application Areas

• Industrial & commercial electrical systems

• Main distribution & upstream protection circuits

• Motor & HVAC installations

• Fire protection systems

• Three phase electrical distribution boards

Key Features

• 40A rated RCCB for three phase applications

• Four pole (FP) configuration with full isolation

• 300mA earth leakage sensitivity for fire protection

• Accurate leakage detection & fast tripping

• Compact DIN rail mountable design

• Durable & reliable construction

Applications

• Upstream distribution protection

• Fire risk mitigation systems

• Industrial & commercial installations

• Electrical distribution panels

• Equipment safety circuits

FAQs

1. What is an RCCB?
Ans: An RCCB is a protective device that detects earth leakage currents & disconnects power but does not provide overload or short circuit protection.

2. What does 300mA sensitivity mean?
Ans: It means the RCCB trips when leakage current exceeds 300mA, mainly used for fire protection rather than personal safety.

3. What does FP mean?
Ans: FP (Four Pole) means the device disconnects all three phases along with the neutral simultaneously.

4. Does this RCCB protect against overload?
Ans: No, RCCBs only provide earth leakage protection. An MCB is required separately for overload & short circuit protection.

5. Where is a 40A FP 300mA RCCB used?
Ans: It is used in three phase systems such as industrial panels, HVAC systems, & upstream distribution boards for fire protection.

6. Why use 300mA RCCB instead of 30mA?
Ans: 300mA RCCBs are designed for fire protection & upstream safety, while 30mA RCCBs are used for protection against electric shock.

7. How is this RCCB installed?
Ans: It is installed on a DIN rail inside a distribution board or electrical panel.