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Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email:
enquiry@furse.com• Web:
www.furse.comESP 5A/BX & 16A/BX Series
TSC-0912 - 09.10.12
Technical specification
If your supply is fused at more than 16 Amps the ESP 120 M1, ESP 240 M1 or ESP 277 M1 are suitable.
Electrical specification
ESP 120-5A ESP 120-16A ESP 240-5A ESP 240-16A ESP 277-5A ESP 277-16A
ESP 120-5A/BX ESP 120-16A/BX ESP 240-5A/BX ESP 240-16A/BX ESP 277-5A/BX ESP 277-16A/BX
Nominal voltage - Phase-Neutral
U
o
(RMS)
120 V
120 V
240 V
240 V
277 V
277 V
Maximum voltage - Phase-Neutral
U
c
(RMS)
150 V
150 V
280 V
280 V
350 V
350 V
Working voltage
(RMS)
90-150 V
90-150 V
200-280 V
200-280 V
232-350 V
232-350 V
Frequency range
47-63 Hz
Current rating
(supply)
5 A or less
16 A or less
5 A or less
16 A or less
5 A or less
16 A or less
Max. back-up fuse
(see installation instructions)
5 A
16 A
5 A
16 A
5 A
16 A
Leakage current
(to earth)
< 0.5 mA
Transient specification
120 Volt protectors
240 Volt protectors
277 Volt protectors
Type 2 (BS EN/EN), Class II (IEC)
Nominal discharge current 8/20 µs (per mode)
I
n
5 kA
Let-through voltage
U
p at
I
n
1
450 V
750 V
790 V
Maximum discharge current
I
max (per mode)
2
10 kA
Type 3 (BS EN/EN), Class III (IEC)
Let-through voltage at
U
oc of 6 kV 1.2/50 µs and
I
sc of 3 kA 8/20 µs (per mode)
3
390 V
590 V
670 V
Mechanical specification
ESP 120-5A ESP 120-16A ESP 240-5A ESP 120-5A/BX ESP 120-16A/BX ESP 240-5A/BX
ESP 240-16A ESP 277-5A ESP 277-16A ESP 240-16A/BX ESP 277-5A/BX ESP 277-16A/BX
Temperature range
-40 to +80 ºC
-40 to +80 ºC
Connection type
Screw terminal
Screw terminal
Conductor size
(solid)
4 mm
2
4 mm
2
Earth connection
Via earth terminal or M6 stud
Via earth terminal or M6 stud
Cable glands
-
-5A/BX
4.8-8 mm cable (PG9)
-16A/BX
8-12 mm cable (PG13.5)
Degree of protection
(IEC 60529)
IP20
IP66
Case material
Steel
PVC
Weight -
unit
0.23 kg
0.26 kg
Weight
-
packaged
0.25 kg
0.31 kg
Dimensions
Depth:
56 mm
120 mm
25 mm
25 mm max.
120 mm
39 mm
80 mm
38 mm
54 mm
26 mm
105 mm
M3 clearance
109 mm centrally
M4 clearance
108 x 50 mm
M4 clearance
1
The maximum transient voltage let-through of the protector
throughout the test (±5%), phase to neutral, phase to earth
and neutral to earth.
2
The electrical system, external to the unit, may constrain the
actual current rating achieved in a particular installation.
3
Combination wave test within BS EN/IEC 61643,
IEEE C62.41-2002 Location Cats C1 & B3, SS 555:2010,
AS/NZS 1768-2007, UL 1449 mains wire-in.