186 / 300
At distribution boards, the
protector can be installed either
on the load side of the incoming
isolator, or on the closest outgoing
way to the incoming supply.
Connect, with very short
connecting leads, to phase,
neutral and earth.
For TT installations, contact Furse.
Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email:
enquiry@furse.com• Web:
www.furse.comESP D1 Series (Single Phase)
TSC-0912 - 09.10.12
Very low let-through voltage (enhanced protection to BS EN 62305)
between all sets of conductors (phase to neutral, phase to earth, neutral
to earth - Full Mode protection)
Full mode design capable of handling partial lightning currents as well
as allowing continual operation of protected equipment
Repeated protection in lightning intense environments
Innovative multiple thermal disconnect technology for safe
disconnection from faulty or abnormal supplies (without compromising
protective performance)
Three way visual indication of protection status and advanced
pre-failure warning so you need never be unprotected
Remote indication facility allows pre-failure warning to be linked to a
building management system, buzzer or light
Changeover active volt-free contact enables the protector to be used to
warn of phase loss (i.e. power failure, blown fuses etc)
Flashing warning of potentially fatal neutral to earth supply faults (due
to incorrect earthing, wiring errors or unbalanced conditions)
Through terminal facility allows series connection on low current
supplies to eliminate high additive voltage associated with connecting
leads on units installed in parallel
Compact space saving DIN housing
Features and benefits
Combined Type 1, 2 and 3 tested protector (to BS EN 61643) for use
on single phase mains power distribution systems primarily to
protect connected electronic equipment from transient overvoltages
on the mains supply, e.g. computer, communications or control
equipment. For use at boundaries up to LPZ
0
B
to protect against
flashover (typically the main distribution board location, with
multiple metallic services entering) through to LPZ 3 to protect
sensitive electronic equipment.
Install in parallel, within the power
distribution board or directly (via
fuses) on to the supply feeding
equipment. Can be installed in
series for low current supplies - see
installation instructions.
Installation
Weatherproof enclosure
WBX D4
Accessories
Parallel connection of ESP 120 D1,
ESP 240 D1 and ESP 277 D1 series to single
phase supplies (fuses not shown for clarity)
L
N
T2
C
T1
I
imp
4kA
I
n
20kA
I
max
oc
40kA
U
6kV
c
z
ac
U
280V 47-63H
B
D
T3
125AgL
!
GREEN
FULLPROTECTION
GREEN&RED REDUCED
PROTECTION
(replaceunit)
RED NOPROTECTION
WARNING:Iflit/
flashingdisconnect
unit&checkNeutral
toEarth voltage
EN/IEC 61643
PATENT
APPLIED
FOR
STATUS INDICATION
ESP 240D1
L
L
1
N
1
N
11
14
12
STATUS
L
1
N
Series connection of ESP 120 D1, ESP 240 D1
and ESP 277 D1 to single phase supplies up
to 125 A (fuses not shown for clarity)
L
1
N
L
N
T2
C
T1
I
imp
4kA
I
n
20kA
I
max
oc
40kA
U
6kV
c
z
ac
U
280V 47-63H
B
D
T3
125AgL
!
GREEN
FULLPROTECTION
GREEN&RED REDUCED
PROTECTION
(replaceunit)
RED NOPROTECTION
WARNING: If lit /
flashingdisconnect
unit&checkNeutral
toEarthvoltage
EN/IEC 61643
PATENT
APPLIED
FOR
STATUS INDICATION
ESP 240D1
L
L
1
N
1
N
11
14
12
STATUS
If you desire a protector with an extra high maximum surge current use the ESP M2 or
ESP M4 series. If your supply is fused at 16 Amps, or less, the in-line protectors (and their
ready-boxed derivatives) may be more suitable.