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OSR12 Single pole Electromagnetic compact RCBOs - ZHISHUN ELECTRICAL

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OSR12 Single pole Electromagnetic compact RCBOs

OSR12 RCBO – The World's Most Compact Electromechanical RCBO in Just 1 Module (18mm)

Space-Saving Innovation for Modern Electrical Installations

The OSR12 RCBO revolutionizes circuit protection with its ultra-compact 1-module (18mm) design, delivering complete residual current and overcurrent protection in the industry's smallest footprint.

Key Advantages

1. Unmatched Space Efficiency

  • 50% slimmer than standard 2-module RCBOs

  • Enables more compact distribution boards – reducing material and installation costs

  • Direct 1:1 replacement for existing 1-pole MCBs – perfect for retrofit projects

2. Enhanced Safety for Any Application

  • Upgrades protection by adding residual current detection to existing circuits

  • Maintains full overload and short-circuit protection

  • Ideal for high-density installations:

    • Residential/commercial buildings

    • Renovation projects with space constraints

    • Multi-circuit installations requiring individual RCBO protection

3. Smart Installation Features

  • Pin busbar system for:

    • Tool-free, quick-connect wiring

    • Flexible in-feed at any connection point

    • Customizable length (cut-to-fit)

  • Optimized for narrow distribution boards

4. Comprehensive Accessory Ecosystem
Expand functionality with:

  • Auxiliary switches

  • Fault signal contacts

  • Integrated arc fault detection (AFDD) – creates a complete 2-module protection solution covering:

    • Residual currents

    • Overloads/short circuits

    • Arc faults

Why Choose OSR12 RCBO?

World's most compact electromechanical RCBO
Seamless retrofit – no panel modifications required
Cost-saving – enables smaller, more economical distribution boards
Future-ready – compatible with advanced protection accessories

Technical Compliance: Meets all requirements of IEC 61009-1

  • Produktdetails

Compact 1-Module (18mm) Electromagnetic RCBOProduct Overview

Product Introduction

This 1-module (18mm wide) electromagnetic RCBO combines residual current protection (RCCB) and overcurrent protection (MCB) in an ultra-slim design, making it ideal for space-constrained installations while ensuring:

  • Personnel protection (electric shock prevention)

  • Fire prevention (leakage current detection)

  • Circuit protection (overload & short-circuit protection)


Hauptmerkmale

1. Ultra-Slim 18mm Design

  • Space-saving: Single-pole width of just 18mm (1 DIN module), enabling high-density panel layouts.

  • Electromagnetic tripping mechanism: Faster response and higher durability compared to thermal-magnetic RCBOs.

2. Residual Current Protection (RCCB Function)

  • Type AC/A:

    • AC: Trips on sinusoidal AC residual currents (standard loads).

    • A: Also detects pulsating DC leakage currents (e.g., from VFDs, SMPS, LED drivers).

  • 30mA sensitivity: Complies with direct contact protection requirements (IEC 60364).

3. Overcurrent Protection (MCB Function)

  • Dual protection:

    • Thermal (bimetallic strip): Time-delayed tripping for overloads.

    • Electromagnetic (solenoid): Instant tripping for short circuits.

  • Tripping curves:

    • Type B (3–5× In): For residential/light commercial loads.

    • Type C (5–10× In): For circuits with inrush currents (motors, transformers).

4. Enhanced Reliability

  • Anti-welding contacts: Special alloy materials withstand high short-circuit currents.

  • Nuisance trip prevention: Isolated circuit design avoids false tripping from cumulative leakage or switching transients.


Anträge

  • Residential/Commercial: Sockets, lighting, HVAC branch circuits.

  • Industrial: Control panels, compact switchboards, motor feeders.

  • Retrofit Projects: Easy replacement of existing 1P MCBs in tight spaces.

Advantages

18mm width – Saves 50%+ space vs. conventional RCBOs.
Electromagnetic tripping – Faster response, 10,000+ mechanical cycles.
All-in-one protection – Integrates RCCB + MCB functionalities.
Easy installation – DIN rail compatible, direct replacement for 1P breakers.

Standards & Certifications

  • Complies with IEC 61009-1, EN 61009-1, and IEC 60364.
  • OSR12 RCBO Technical Specifications

    Category Specification Details
    Standards Compliance IEC/DIN EN Standards IEC/DIN EN 61009-1 (VDE 0664-20); IEC/DIN EN 61009-2-1 (VDE 0664-21)
    Electrical Characteristics Rated Voltage (Un) 230V AC
    Rated Currents (In) 2, 4, 6, 10, 13, 16A,20A,25A,32A
    Rated Residual Current (IΔn) 30mA
    Rated Switching Capacity 4.5kA, 6kA
    Energy Limitation Class 3
    Protection Features Current Withstand Capability Type A (8/20μs waveform per EN 60060-2)
    Minimum Test Voltage 195V AC
    Installation Parameters Terminal Conductor Range Solid/stranded: 0.75-16mm²
    Finely stranded (with sleeve): 0.75-10mm²
    Terminal Torque 1.2-2Nm
    Connection Options Top or bottom
    Mounting Position Any (standard DIN rail)
    Environmental Ratings Protection Rating IP20
    Touch Protection EN 50274 compliant (finger and back-of-hand safe)
    Operating Temperature -25°C to +45°C
    Storage Temperature -40°C to +75°C
    Climate Resistance IEC 60068-2-30 (28 cycles at 55°C, 95% RH)
    Reliability Switching Cycles >10,000 operations
    Materials Hazardous Substances CFC and silicone-free

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