Surge protection

ESP series – protection devices for RS-485, Ethernet 10/100/1000 Base-TX or GLONASS/GPS antenna feeder interfaces.

Surge protection for one RS-485 line, mounting on DIN-rail

  ESP485-1 ESP485-2 ESP485-SG ESP485-SG2
Number of protected
communication lines
1 2 1 1
Protection of the signal ground no no yes yes
Connection technology,
cross-section of connected
conductors
Screw terminals,
2.5 mm2
Screw terminals,
2.5 mm2
Screw terminals,
2.5 mm2
Connectors RJ45
or push-in terminals
(0.75 mm2),
screw terminals PE
(2.5 mm2)
Operating (maximum)
voltage, V
6 (7) 6 (7) 6 (7) 6 (7)
Rated current, mA 100 100 100 100
Rated (maximum) discharge current, kA 1 (10) 1 (10) 1 (10) 1 (2)
Response time, µs < 10 < 10 < 10 < 10
Dimensions, mm 91 × 65 × 18
91 × 65 × 18
91 × 65 × 18 117 × 44 × 22
Operating temperature, °C -40...+70 -40...+70 -40...+70 -40...+70


Protection devices of interfaces Ethernet 10/100/1000 Base-TX

Maximum voltage 60 В
Load Rated current – 1 A
Maximum current – 1,5 A
Pulse discharge current (8/20 µs) 1 kA (line-ground)
2 kA (ground-ground)
Accordance IEEE 802.3 af, at, bt
Construction 114 × 42.8 × 22.5 mm, IP20
Interface connector RJ45 shielded
Connector of grounding protective 2-pole screw terminal block, 0.2...2.5 mm2 (24...12 AWG), 0.4 N·m
Operating temperature -40 to +70 °C
Installation DIN-rail TH35

GLONASS/GPS antenna feeder protection devices

EMP-GN (TNC)

EMP-GN (SMA)

Connectors on the device

TNC f/f

SMA f/f

Applicability to GLONASS/GPS antennas

GPS-P.50МP

GPS-B3.50МP

GPS-ET.50МP

GPS-P.10МP

GPS-P.20МP

GPS-B3.10МP

GPS-B3.20МP

Gap gap voltage

90 V ± 30 %

Maximum pulse discharge current (8/20 µs)

2 kA

Rated current

4 A

Frequency range

0...2,6 GHz

Introduced attenuation

< 1,5 dB

Wave resistance

50 Om

Response time (pulse over 100 V/µs)

< 5 µs

Overall dimensions

82 × 42 × 22,5 mm (SMA)

80 × 45,5 × 22,5 mm (TNC)

Weight

50 g

Operating temperature

-40…+70 °C



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