Array
(
    [ID] => 766
    [~ID] => 766
    [TIMESTAMP_X] => 09/03/2026 01:47:30 pm
    [~TIMESTAMP_X] => 09/03/2026 01:47:30 pm
    [MODIFIED_BY] => 14
    [~MODIFIED_BY] => 14
    [DATE_CREATE] => 07/18/2019 10:33:44 pm
    [~DATE_CREATE] => 07/18/2019 10:33:44 pm
    [CREATED_BY] => 4
    [~CREATED_BY] => 4
    [IBLOCK_ID] => 18
    [~IBLOCK_ID] => 18
    [IBLOCK_SECTION_ID] => 2345
    [~IBLOCK_SECTION_ID] => 2345
    [ACTIVE] => Y
    [~ACTIVE] => Y
    [GLOBAL_ACTIVE] => Y
    [~GLOBAL_ACTIVE] => Y
    [SORT] => 20
    [~SORT] => 20
    [NAME] => Surge protection for RS-485 lines
    [~NAME] => Surge protection for RS-485 lines
    [PICTURE] => 175759
    [~PICTURE] => 175759
    [LEFT_MARGIN] => 468
    [~LEFT_MARGIN] => 468
    [RIGHT_MARGIN] => 483
    [~RIGHT_MARGIN] => 483
    [DEPTH_LEVEL] => 2
    [~DEPTH_LEVEL] => 2
    [DESCRIPTION] => 
    [~DESCRIPTION] => 
    [DESCRIPTION_TYPE] => text
    [~DESCRIPTION_TYPE] => text
    [SEARCHABLE_CONTENT] => SURGE PROTECTION FOR RS-485 LINES

    [~SEARCHABLE_CONTENT] => SURGE PROTECTION FOR RS-485 LINES

    [CODE] => surge-protection-for-rs-485-lines
    [~CODE] => surge-protection-for-rs-485-lines
    [XML_ID] => 766
    [~XML_ID] => 766
    [TMP_ID] => 
    [~TMP_ID] => 
    [DETAIL_PICTURE] => 175760
    [~DETAIL_PICTURE] => 175760
    [SOCNET_GROUP_ID] => 
    [~SOCNET_GROUP_ID] => 
    [LIST_PAGE_URL] => /en/products/index.php?ID=18
    [~LIST_PAGE_URL] => /en/products/index.php?ID=18
    [SECTION_PAGE_URL] => /en/products/list.php?SECTION_ID=766
    [~SECTION_PAGE_URL] => /en/products/list.php?SECTION_ID=766
    [IBLOCK_TYPE_ID] => products
    [~IBLOCK_TYPE_ID] => products
    [IBLOCK_CODE] => productset_en
    [~IBLOCK_CODE] => productset_en
    [IBLOCK_EXTERNAL_ID] => 00000
    [~IBLOCK_EXTERNAL_ID] => 00000
    [EXTERNAL_ID] => 766
    [~EXTERNAL_ID] => 766
)

Array
(
    [767] => Array
        (
            [ID] => 767
            [NAME] => ESP485-1
            [PICTURE] => 175757
            [DESCRIPTION] => Surge protection for one RS-485 line, mounting on DIN-rail
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

    [768] => Array
        (
            [ID] => 768
            [NAME] => ESP485-2
            [PICTURE] => 175792
            [DESCRIPTION] => Surge protection for two RS-485 lines, mounting on DIN-rail
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

    [769] => Array
        (
            [ID] => 769
            [NAME] => ESP485-SG
            [PICTURE] => 175794
            [DESCRIPTION] => Surge protection for one RS-485 line with protection of signal ground, mounting on DIN-rail
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

    [1020] => Array
        (
            [ID] => 1020
            [NAME] => ESP485-SG2
            [PICTURE] => 209673
            [DESCRIPTION] => Surge protection for one RS-485 line with protection of signal ground, mounting on DIN-rail
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

    [770] => Array
        (
            [ID] => 770
            [NAME] => ESP-LAN
            [PICTURE] => 209676
            [DESCRIPTION] => Surge protection for Ethernet 10/100/1000 BASE-TX, mounting on DIN-rail 
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

    [891] => Array
        (
            [ID] => 891
            [NAME] => EMP-GN-SMA
            [PICTURE] => 209680
            [DESCRIPTION] => Surge protection for GPS/GLONASS-antenna feeder, SMA-f/f (suitable for GPS-P antennas GPS-P.10 and GPS-P.20). Mounting on DIN-rail. Included is a 0.5 meter SMA-SMA adapter cable.
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

    [1021] => Array
        (
            [ID] => 1021
            [NAME] => EMP-GN-TNC
            [PICTURE] => 209682
            [DESCRIPTION] => Surge protection for GPS/GLONASS-antenna feeder, TNC-F/f (suitable for GPS-P antennas50 and GPS-ET.50). Mounting on DIN-rail. Included is a 0.5 meter TNC-SMA adapter cable.
            [IBLOCK_ID] => 18
            [DEPTH_LEVEL] => 3
            [IBLOCK_SECTION_ID] => 766
        )

)

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

ESP485-1

ESP485-2

ESP485-SG

ESP485-SG2

ESP-LAN

EMP-GN-SMA

EMP-GN-TNC

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

Open image

Hover over to see the location

• Signal circuits to the device
• Signal circuits to the line

Technical specifications

Faq

	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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