IS 12640 (Part 1)
Electrical - Residual current operated circuit breakers for house hold and similar uses-Part 1 Circuit breakers without integral overcurrent protection (RCCBs)
Summary
Residual Current Operated Circuit Breakers (RCCBs) are electrical safety devices designed to disconnect power supply when leakage current to earth is detected. They protect people from electric shock and reduce fire risks caused by insulation faults in household and similar electrical installations.
Why BIS Certificate is Mandatory for Residual Current Operated Circuit Breakers without Integral Overcurrent Protection for Household and Similar Uses (RCCBs)- Part 1 General Rule?
BIS certification is mandatory for RCCBs to ensure electrical safety, reliability, and performance as per Indian Standards. Certified RCCBs prevent electric shock, fire hazards, and malfunction. Mandatory BIS marking ensures compliance with safety norms, protects consumers, and prevents the circulation of unsafe electrical products in India.
What is BIS Certified for Residual Current Operated Circuit Breakers without Integral Overcurrent Protection for Household and Similar Uses (RCCBs)- Part 1 General Rule ?
The BIS certified specification for RCCBs is IS/IEC 61008-1, which defines construction, performance, electrical ratings, tripping characteristics, insulation, endurance, and safety requirements. Compliance ensures RCCBs operate correctly under fault conditions and provide effective protection in household and similar electrical installations.
Test required For Residual Current Operated Circuit Breakers without Integral Overcurrent Protection for Household and Similar Uses (RCCBs)- Part 1 General Rule
| Title | Mandatory/Optional |
|---|---|
| Tripping test | Required |
| Required | |
| Performance of the test device | Required |
| Marking (except indelibility of marking) | Required |
| Mechanical Design (General) | Required |
| Mechanical Design (Mechanism) | Optional |
| Indelibility of marking | Required |
| Clearance & creepage distances (external parts) | Required |
| Trip-free mechanism | Required |
| Reliability of Screws, current-carrying parts and connections | Required |
| Reliability of Terminalsfor external conductors | Required |
| Protection against electric shock | Required |
| Resistance to heat | Optional |
| Clearance & Creepage distances (internal parts) | Required |
| Resistance to rusting | Optional |
| Resistance to abnormal heat and to fire | Optional |
| Resistance of the insulation of open contacts and basic insulation against an impulse voltage in normal conditions | Required |
| Verification of the behavior of components bridging the basic insulation | Required |
| Resistance to humidity | Required |
| Insulation resistance of the main circuit | Required |
| Dielectric Strength of the main circuit | Required |
| Insulation resistance and dielectric strength of auxiliary circuits | Required |
| Verification of clearances with the impulse withstand voltage | Required |
| Secondary circuit of detection transformers | Required |
| Capability of control circuits connected to the main circuits | Required |
| Temperature rise | Required |
| Reliability at 40°C | Required |
| Ageing of electronic components | Required |
| Mechanical and electrical endurance | Required |
| Residual Operating characteristic | Required |
| Behavior in the case of failure of line voltage | Required |
| Unwanted tripping Behavior in the case of surge currents | Optional |
| Performance at IΔm | Optional |
| Test device | Required |
| Resistance to mechanicalshock and impact | Required |
| Non-operating current under overcurrent conditions | Required |
| Verification of the suitability of RCCBs for use in IT systems | Optional |
| Coordination at Inc | Optional |
| Performance at Im | Optional |
| Coordination at Im | Optional |
| Coordination at IΔc | Optional |
| Reliability (climatic test) | Optional |
| ElectromagneticCompatibility | Optional |
Benefits of BIS Certification for Residual Current Operated Circuit Breakers without Integral Overcurrent Protection for Household and Similar Uses (RCCBs)- Part 1 General Rule
1. Enhanced Electrical Safety - BIS-certified RCCBs are tested for accurate residual current detection, ensuring fast disconnection during leakage and protecting users from electric shock.
2.Fire Hazard Prevention - Certified RCCBs reduce the risk of electrical fires caused by insulation failure, moisture, or faulty wiring.
3.Quality and Performance Assurance - BIS standards ensure consistent manufacturing quality, durability, and reliable tripping performance over long-term use.
4. Legal Compliance and Market Access - BIS certification is mandatory in India, allowing manufacturers and importers to sell RCCBs legally without penalties or rejection.
5. Consumer Trust and Brand Value - BIS marking builds confidence among electricians, builders, and consumers, enhancing brand reputation and acceptance in residential and commercial projects.