Power supply SPD GN-1 series
Showden Co., Ltd.

Showden Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

117.8hours

About This Product

■JIS C 5381-11 compatible Imax10kA class II SPD standard modelThe GN-1 series is a standard model of class II SPD with high cost performance that supports a nominal discharge current of 8/20μs 5kA and a maximum discharge current of 8/20μs 10kA. Compatible with the ``nominal discharge current 5kA'' or higher requirement of low-voltage SPD class II in the public construction standard specifications (2019 edition).

■FeaturesCompatible with low voltage SPD class II of public construction standard specifications (2019 edition)

■Can also be connected to the primary side of an earth leakage breakerAnnex K of JIS C 5381-12:2014 stipulates that in TT systems (including Japanese power distribution systems), when connecting an SPD to the primary side of an earth leakage breaker, a voltage switching element such as a spark gap, GDT, etc. It is described that it is implemented. The GN-1 series can be connected to the primary side of an earth leakage breaker without any problems by installing a GDT (gas-filled discharge tube) between N and E.

■Model names that include specified SPD separators as a set have also been added.The old standard JIS C 5381-1 did not require safety in the event of an SPD short-circuit failure, so 50AF/50AT MCCBs have been mainly used for SPD separators. On the other hand, the new standard JIS C 5381-11 requires testing for safety in the event of SPD failure in combination with the SPD separator specified by the manufacturer. Therefore, when using an SPD that complies with JIS C 5381-11, it is necessary to connect the specified SPD separator.

 This time, we have added a model name that includes a specified SPD separator as a set. This set model name with the SPD separator eliminates mistakes in SPD separator selection and allows safer use.
*SPD can be mounted on a DIN rail and mounting brackets (optional), but fuses can only be mounted on a DIN rail.

Model
There are 10 models for this product.

Product
Power supply SPD GN-1 series

Handling Company
Showden Co., Ltd.

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10 Models of Power supply SPD GN-1 series

Click on the part number for more information about each product

Part Number	Price (excluding tax)	Protection mode	Test standards	Exam class	Structure	Maximum continuous working voltage Uc	Voltage switching device to ground (GDT)	TOV on low pressure side	Three-phase 4-wire Y connection Neutral point grounding 240V/415V	Three-phase three-wire Y connection, neutral point grounding 415V	Type	SPD separator	Single phase 3 wire neutral wire grounding 100V/200V	Three-phase 4-wire Y connection, neutral point grounding 100V/173V	Three-phase three-wire delta connection one-wire grounding 200V	Single phase 2 wire neutral point grounding 200V	Single phase 2 wire 1 wire grounding 200V	Single phase 2 wire 1 wire grounding 100V
GN-122A	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Single SPD, with alarm contact	External	-	-	-	○	○	○
GN-122	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Single SPD, no alarm contact	External	-	-	-	○	○	○
GN-122A-F	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Set format of SPD and SPD separator, with alarm contact	External	-	-	-	○	○	○
GN-122-F	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Set format of SPD and SPD separator, no alarm contact	External	-	-	-	○	○	○
GN-123A	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Single SPD, with alarm contact	External	○	○	○	-	-	-
GN-123	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Single SPD, no alarm contact	External	○	○	○	-	-	-
GN-123A-F	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Set format of SPD and SPD separator, with alarm contact	External	○	○	○	-	-	-
GN-123-F	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC280V	Yes	Endure	-	-	Set format of SPD and SPD separator, no alarm contact	External	○	○	○	-	-	-
GN-144A	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC460V	Yes	Endure	○	○	Single SPD, with alarm contact	External	-	-	-	-	-	-
GN-144	Available upon quote	L-L, L-E	JIS C 5381-11	Class II	One piece	AC460V	Yes	Endure	○	○	Single SPD, no alarm contact	External	-	-	-	-	-	-

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About Company Handling This Product

Showden Co., Ltd.

Response Rate

100.0%

Response Time

117.8hrs

Japan

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Power supply SPD GN-1 series Showden Co., Ltd.

Showden Co., Ltd.'s Response Status

About This Product

■JIS C 5381-11 compatible Imax10kA class II SPD standard model

■Features

■Can also be connected to the primary side of an earth leakage breaker

■Model names that include specified SPD separators as a set have also been added.

10 Models of Power supply SPD GN-1 series

Customers who viewed this product also viewed

Other products of Showden Co., Ltd.

About Company Handling This Product

Related search keywords

Power supply SPD GN-1 series
Showden Co., Ltd.