Description
About the Product
The Tripper RCCB 40A DP 240V AC 300mA is a robust & high-performance Residual Current Circuit Breaker (RCCB) designed to provide dependable protection against earth leakage faults. It is especially suitable for applications where fire protection & upstream electrical safety are critical priorities rather than direct human shock protection.
With a 40A current rating & a 300mA residual current sensitivity, this RCCB effectively detects higher leakage currents that may lead to insulation failure or electrical fires. The double pole (DP) configuration ensures simultaneous disconnection of both phase & neutral conductors, guaranteeing complete circuit isolation during fault conditions.
How the RCCB Works
The RCCB continuously monitors current flow between phase & neutral conductors:
• Detects imbalance caused by leakage currents
• Identifies abnormal current flow to earth
• Trips automatically when leakage exceeds 300mA
• Disconnects both phase & neutral simultaneously
• Helps prevent fire hazards due to sustained leakage currents
This ensures reliable protection of electrical systems & connected equipment.
Technical Specifications
• Rated current: 40A
• Poles: Double pole (DP)
• Rated voltage: 240V AC
• Residual current sensitivity: 300mA
• Function: Earth leakage protection
• Application: Fire protection & upstream safety circuits
Construction & Design
The RCCB is engineered for durability & consistent performance:
• Double pole design for full circuit 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 protection applications
• Reduces risk of insulation-related hazards
• Ensures complete disconnection of phase & neutral
• Enhances system safety & reliability
Mounting & Durability
• DIN rail mountable for quick installation
• Suitable for distribution boards & electrical panels
• Compact size for efficient panel space utilization
• Long mechanical & electrical life
• Reliable under continuous medium to high load operation
Application Areas
• Residential electrical systems
• Commercial installations
• Fire protection circuits
• Main distribution & upstream protection
• Electrical panels & distribution boards
Key Features
• 40A rated RCCB for medium to high load circuits
• Double pole (DP) configuration for complete isolation
• 300mA earth leakage sensitivity for fire protection
• Accurate leakage current detection
• Compact DIN rail mountable design
• Durable & long-lasting construction
Applications
• Upstream distribution protection
• Fire risk reduction systems
• Residential & commercial installations
• Electrical distribution panels
• Control & safety systems
FAQs
1. What is an RCCB?
Ans: An RCCB is a protective device that detects earth leakage currents & disconnects the supply to prevent hazards, but it 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, typically used for fire protection rather than personal safety.
3. What does DP mean?
Ans: DP (Double Pole) means both phase & neutral connections are disconnected 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 300mA RCCB used?
Ans: It is commonly used in upstream distribution panels, commercial installations, & systems where fire protection is essential.
6. Why use 300mA instead of 30mA RCCB?
Ans: 300mA RCCBs are designed for fire protection & system-level safety, while 30mA RCCBs are intended 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 for easy integration into electrical systems.
Overview
| Discount Percentage | Between 0-10 % |
|---|---|
| Operating Temperature Range | -5°C to +55°C |
| Electrical life (Operating Cylces) | 10000 |
| Tightening Torque | 4Nm |
| Termination capacity | 50 Sq. mm (Rigid) 35 Sq. mm (Flexible) |
| Mechanical Life (Operating Cycles) | 20000 |
| No. of Poles | DP |
| Rated Insulation Voltage Ui (V) | 500V |
| Rated Frequency | 50Hz |
| Rated Residual Making & Breaking capacity | 1kA |
We are located in PORTHARCOURT, ABUJA and LAGOS
Call: 09050234845
Email: [email protected]
for more breakers, visit Circuit Breakers – Circuit Breaker Store Archives – Detopsy Electric




