ABB ESP M1R Installation Instructions Manual page 17

Figure 10:
Busbar mounted HRC
fuse at the end of the
live connecting lead.
The means of isolation should therefore be installed in
the connection to the ESP unit. Figures 8 & 9 show
example connection schematics. Where it is also
necessary to fuse the connection to the ESP unit (see 3.7
Fuse connecting leads) this can be achieved through use
of a switchfuse, MCCB or type 'C' MCB.
3.7 Fuse connecting leads
The connecting leads to the phase/live terminals of the
ESP units should be fused. This is to protect the
Installation instructions for mains wire-in protectors | 3/10
NO NC C
NO NC C
Volt free contact
Volt free contact
ESP
ESP
240 M1
240 M1
STATUS INDICATION
STATUS INDICATION
L N
L N
GREEN FULL PROTECTION
GREEN FULL PROTECTION
GREEN & RED REDUCED PROTECTION
GREEN & RED REDUCED PROTECTION
(replace unit)
(replace unit)
RED NO PROTECTION
RED NO PROTECTION
WARNING
WARNING
If lit / flashing disconnect
If lit / flashing disconnect
unit & check Neutral to
unit & check Neutral to
Earth supply voltage
Earth supply voltage
ELECTRONIC SYSTEMS
ELECTRONIC SYSTEMS
PROTECTION
PROTECTION
Let-through voltage 600V
Let-through voltage 600V
(Live to Neutral, Live to Earth & Neutral to Earth)
(Live to Neutral, Live to Earth & Neutral to Earth)
Vmax 280Vrms 1 phase/50Hz
Vmax 280Vrms 1 phase/50Hz
PATENT
PATENT
APPLIED
APPLIED
FOR
FOR
Made by W J Furse & Co Ltd, ESP Division,
Made by W J Furse & Co Ltd, ESP Division,
Wilford Road, Nottingham, NG2 1EB, UK
Wilford Road, Nottingham, NG2 1EB, UK
L N L N
L
1
N