Furse Total Solution to Earthing & Lightning Protection

207 / 300

Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email: • Web:
ESP E Series
TSC-0912 - 09.10.12
Technical specification
Slim Line (ESP SL), ATEX (ESP SLX) and PCB mount (ESP PCB) are available. For many twisted pair data and signal applications, the lower cost
ESP D Series may be suitable. For applications requiring higher current (1.25 A to 4 A) or ultra-low in-line resistance, the ESP H Series protectors
may be more suitable. For data and signal lines on LSA-PLUS modules, use the ESP KS Series.
1 Nominal voltage (DC or AC peak) measured at < 10 µA
(ESP 15E, ESP 30E, ESP 50E, ESP 110E) and < 200 µA
(ESP 06E).
2 Maximum working voltage (DC or AC peak) measured at
< 5 mA leakage (ESP 15E, ESP 30E, ESP 50E, ESP 110E) and
< 10 mA (ESP 06E).
3 The maximum transient voltage let-through of the protector
throughout the test (±10%), line to line & line to earth, both
polarities. Response time < 10 ns.
4 Test to IEC 61000-4-5:2006, ITU-T (formerly CCITT) K.20,
K.21 and K.45,Telcordia GR-1089-CORE, Issue 2:2002,
ANSI TIA/EIA/IS-968-A:2002 (formerly FCC Part 68).
120 mm
38 mm
19 mm
54 mm
105 mm
M4 clearance
109 mm
M4 clearance
Electrical specification ESP 06E ESP 15E ESP 30E ESP 50E ESP 110E
Nominal voltage 1 6 V 15 V 30 V 50 V 110 V
Maximum working voltage Uc2 7.79 V 16.7 V 36.7 V 56.7 V 132 V
Current rating (signal) 1.25 A
In-line resistance (per line ±10%) 1.0 Ω
Bandwidth (-3 dB 50 Ω system) 45 MHz
Transient specification ESP 06E ESP 15E ESP 30E ESP 50E ESP 110E
Let-through voltage (all conductors)3 Up
C2 test 4 kV 1.2/50 µs, 2 kA 8/20 µs to
BS EN/EN/IEC 61643-21
36.0 V 39.0 V 60.0 V 86.0 V 180 V
C1 test 1 kV, 1.2/50 µs, 0.5 kA 8/20 µs to
BS EN/EN/IEC 61643-21
26.2 V 28.0 V 49.0 V 73.5 V 170 V
B2 test 4 kV 10/700 µs to BS EN/EN/IEC 61643-21 16.0 V 25.5 V 43.5 V 65.0 V 160 V
5 kV, 10/700 µs4 17.0 V 26.2 V 44.3 V 65.8 V 165 V
Maximum surge current
D1 test 10/350 µs to - per signal wire
BS EN/EN/IEC 61643-21 - per pair
2.5 kA
5 kA
8/20 µs to ITU-T K.45:2003, - per signal wire
IEEE C62.41.2:2002 - per pair
10 kA
20 kA
Mechanical specification ESP 06E ESP 15E ESP 30E ESP 50E ESP 110E
Temperature range -40 to +80 ºC
Connection type Screw terminal
Conductor size (stranded) 2.5 mm2
Earth connection M6 stud
Case material ABS UL94 V-0
Weight - unit 0.08 kg
Weight - packaged (per 10) 0.85 kg
Dimensions