Hager ARM906U RCBO Arc Fault Detection Devices Instruction Manual
- June 9, 2024
- hager
Table of Contents
Hager ARM906U RCBO Arc Fault Detection Devices
Product Information
The Hager RCBO/MCB/AFDD devices are arc fault detection devices that can be retrofitted in 18th edition (metal) Hager Consumer Units only. The devices come in various models with different specifications:
- ARR906U – RCBO 1M 6A B curve 6kA Type A 30mA
- ARR910U – RCBO 1M 10A B curve 6kA Type A 30mA
- ARR916U – RCBO 1M 16A B curve 6kA Type A 30mA
- ARR920U – RCBO 1M 20A B curve 6kA Type A 30mA
- ARR925U – RCBO 1M 25A B curve 6kA Type A 30mA
- ARR932U – RCBO 1M 32A B curve 6kA Type A 30mA
- ARM906U – MCB 1M 6A B curve 6kA
- ARM910U – MCB 1M 10A B curve 6kA
- ARM916U – MCB 1M 16A B curve 6kA
- ARM920U – MCB 1M 20A B curve 6kA
- ARM925U – MCB 1M 25A B curve 6kA
- ARM932U – MCB 1M 32A B curve 6kA
The devices come with guidance notes for installation on different types of Hager Consumer Units, including Switch Disconnector Consumer Units, 100A Dual RCCB Consumer Units, and 100A RCCB Incomer Consumer Units. The guidance notes provide information on maintaining the ratings of the Consumer Units when using the devices.
Product Usage Instructions
Before installing the Hager RCBO/MCB/AFDD devices, ensure that you have an 18th edition (metal) Hager Consumer Unit. Follow the guidance notes that apply to your Consumer Unit type:
Switch Disconnector Consumer Units
If you have a Switch Disconnector Consumer Unit, use the following guidance notes:
- The Hager RCBO/MCB/AFDD devices are retrofittable in 18th edition (metal) Hager Consumer Units only
- All current SD metal Consumer Unit designs are verified with RCBO / AFDD Ina & Inc ratings for these Consumer Unit designs are maintained when RCBO / AFDD devices are employed
- For retrofit applications on Switch Disconnector Incomer Flush Mounted Consumer Units, the Internal neutral cable is required to be uprated to 25mm to retain board Ina rating (cable part number -KE03B)
100A Dual RCCB Consumer Units
If you have a 100A Dual RCCB Consumer Unit, use the following guidance notes:
- All current Split load dual RCCB metal Consumer unit designs are verified with Tyne MCB/AFDD
- When used in conjunction with outgoing MCB / AFDD devices, the Consumer Unit assembly maintains an Ina of 100A, however the Inc rating of each RCCB where MCB/AFDD are fitted will need to be derated to 80A. To ensure this, the upstream overload protection for the board must be provided at a maximum of 80A or, the sum of the downstream devices for each RCCB where MCB/AFDD are fitted to be equal to or less than 80A
100A RCCB Incomer Consumer Units
If you have a 100A RCCB Incomer Consumer Unit, use the following guidance notes:
- When used in conjunction with outgoing MCB / AFDD devices, the Inc rating of the RCCB fitted will need to be derated to 90A. To ensure this, the upstream overload protection for the board must be provided at a maximum of 90A or, the sum of the downstream devices for each RCCB where MCB / AFDD are fitted to be equal to or less than 90A
Hager RCBO / MCB / AFDD devices are retrofittable in 18th edition (metal) Hager Consumer Units only:
- Design 10 Single,Dual Row & Flush
- Design 30 Single & Dual Row
- Design 50 Flush