Invicta 3 Distribution Board
User Instructions
Your property has been equipped with a hager Distribution Board. This unit
and it’s associated hager protective devices will offer the highest level of
protection for your premises.
A range of possible protective devices may be installed in your consumer
unit, including Miniature Circuit Breakers (MCBs), Residual Current Circuit
Breakers (RCCBs), or combined MCB/RCDs (RCBOs).
INV USERINV USER
MCBs and fuses are safety devices designed to operate in the event that
a circuit or appliance demands too much current.
RCCBs are also safety devices but are designed to protect against fault
currents owing to earth, and these reduce the risk of re and electric
shock. RCBOs combine the operation of both the MCB and RCCB.
Access to the devices is by lifting the tinted door.
T
RCCBs and RCBOs should be tested every 3 months. Press the TEST
or T button. The device should trip (go to the OFF position). If it trips,
reset the device by pushing the toggle to the up (ON) position. If it does
not trip call a qualied electrician.
ONLY QUALIFIED ELECTRICIANS SHOULD REMOVE THE FRONT
COVER.
If any of the protective devices have tripped please follow the ow
diagram below.
IF IN DOUBT ALWAYS CONSULT A QUALIFIED ELECTRICIAN.
HAGER TECHNICAL SUPPORT HELPLINE: 01952 675689.
T
ON ON ON
ON
RCCBBlank RCBO
(2 Module)
* Important note Fuse carriers must not be opened or closed with the main
Use circuit as
normal
Call an
electrician
switch in the ON position.
YES
Does device
NO
Does device
supply socket
Unplug all
appliances from
circuit and reset
device / replace fuse*
stay ON?
NO
outlets
YES
Try & reset device once
Tu rn ON
Main switch
T
MCB
or
RCBO
Pull down fuse* carrier
handle and replace
blown fuse with
equivalent type &
rating, close carrier
MCB Switch
RCBO
(1 Mod)
START
MCB/Fuse
tripped
Fuse
RCCB
Try & reset device once
Call an
electrician
NO
What device
is it?
Tu rn OFF
Main switch
Use circuit as
normal
YES
Does device
stay ON?
NO
Tu rn OFF
all MCBs / fuse*
devices
Reset RCCB
Does device
stay ON?
Unplug faulty
appliance until
repaired. Reset device.
Other appliances may
be used
Tu rn ON MCBs / fuses*
devices one at a time
until RCCB trips again,
identifying faulty circuit
NO
Does device
stay ON?
Plug in & switch on
YES
appliances one at a time
until device trips / blows,
identifying faulty appliance
Hager Ltd. Hortonwood 50 Telford Shropshire TF1 7FT • Sales Hotline: 01952 675612 • Technical Helpline: 01952 675689
YES
INV USER
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