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Description
GS1KD4Main Range TeSys Product name TeSys GS Device short name GS1 K Product or component type Switch disconnector fuse Device application Protection Poles description 4P Protected poles description 4t Contacts type and composition 4 NO [Ith] conventional free air thermal current 125 A (at 40 C) [Ie] rated operational current 100 A at 440 V 2 poles in series per phase DC 23A 100 A at 440 V 2 poles in series per phase DC 23B 100 A at 690 V with terminal
Main
| Range | TeSys |
| Product name | TeSys GS |
| Device short name | GS1 K |
| Product or component type | Switch-disconnector-fuse |
| Device application | Protection |
| Poles description | 4P |
| Protected poles description | 4t |
| Contacts type and composition | 4 NO |
| [Ith] conventional free air thermal current | 125 A (at 40 °C) |
| [Ie] rated operational current | 100 A at 440 V 2 poles in series per phase DC-23A 100 A at 440 V 2 poles in series per phase DC-23B 100 A at 690 V with terminal cover AC-23A 100 A at 690 V with terminal cover AC-23B 125 A at 400 V AC-23A 125 A at 400 V AC-23B 125 A at 500 V AC-23A 125 A at 500 V AC-23B |
| Fuse type | NFC |
| Fuse size | 22 x 58 mm |
| Network type | DC AC |
| Network frequency | 50/60 Hz |
Complementary
| Type of operating handle | Direct right side |
| Mounting support | Plate |
| [Ui] rated insulation voltage | 750 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 8 kV |
| Rated operational power in W | 90 kW at 690 V 63 kW at 400 V 90 kW at 500 V |
| Making capacity | 1250 A at 400 V AC-23B |
| [Icm] rated short-circuit making capacity | 100 kA at 400 V with protection by gG fuses |
| Breaking capacity | 1000 A at 400 V (AC-23B) |
| Short-circuit withstand | 20 kA |
| Mechanical durability | 10000 cycles |
| Electrical durability | 1000 cycles AC-23A 1000 cycles AC-23B |
| Connections - terminals | Power circuit: bars Power circuit: lugs-ring terminals35…95 mm² flexible |
| Tightening torque | Power circuit: 12 N.m - on bars Power circuit: 12 N.m - on lugs-ring terminals |
Environment
| Standards | IEC 60947-3 |
| Product certifications | CE |
| Protective treatment | TH |
| IP degree of protection | IP20 conforming to IEC 60529 (with terminal cover) |
| Ambient air temperature for operation | -20…70 °C |
| Ambient air temperature for storage | -40…80 °C |
| Fire resistance | 850 °C fuse cover conforming to IEC 60695-2-1 960 °C body conforming to IEC 60695-2-1 |
| Height | 162 mm |
| Width | 186 mm |
| Depth | 116 mm |
| Net weight | 2 kg |
Offer Sustainability
| REACh Regulation | REACh Declaration |
| REACh free of SVHC | Yes |
| EU RoHS Directive | Under investigation |
| Toxic heavy metal free | Yes |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
Contractual warranty
| Warranty | 18 months |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1842 reviews
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Product Reviews
★★★★★ 5
Amazing Matcha Powder<3
Flavor Name: Ceremonial Grade, Size: 3.5 oz (100g), Flavor Name: Ceremonial Grade, Size: 3.5 oz (100g)
Probably one of the best matcha powders I’ve tried off of Amazon. It had all the notes, umami, nuttiness, matcha flavor, natural sweeteners and a hint of bitterness. When I first opened the packaged it has a strong and good smelling matcha smell. It’s a super vibrant green and looks very creamy even as just a powder. There was no clumps visible and mixed with water super smoothly. The texture of the powder was on point. There was no weird gooeyness going on. Onto my second 100g bag now. Definitely my go to matcha powder now, will be buying as long as it is available.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
Sweet & nutty😍
Flavor Name: Ceremonial Grade, Size: 1.4 oz (40g), Flavor Name: Ceremonial Grade, Size: 1.4 oz (40g)
I actually like it I’m new to matcha so I’m starting with cheaper ones first I definitely recommend this! It’s so much different than the other ones I’ve gotten, it’s super sweet you literally don’t need any sweetener to it it tastes really good it’s nutty and buttery with sweetness I only rated it a 4 because I lowkey like my matcha bitter ish but I know many of you like it sweet it’s really green it’s a nice color the quality overall is great it’s smoothness and all its worth the money so definitely buy it! (I used Starbucks ice in the pic I didn’t purchase that obviously 😍)
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Reviewed in the United States on April 10, 2026
★★★★★ 5
From Someone Who Actually Drinks Japanese Matcha Regularly
Flavor Name: Ceremonial Grade, Size: 1.4 oz (40g), Flavor Name: Ceremonial Grade, Size: 1.4 oz (40g)
After trying a lot of Amazon matcha brands, I honestly think people expecting this to taste super sweet or creamy might be misunderstanding what traditional Japanese matcha is supposed to taste like.
This one has more of that genuine, earthy, slightly umami flavor that I usually experience at Japanese matcha cafes. Mine was fresh, smooth, and produced a really delightful latte. It definitely wasn’t “fishy” like some reviews suggested.
I also noticed some people complained about bitterness, but using water that’s too hot can ruin almost any matcha. Once I prepared it correctly, the flavor was balanced and clean.
For the price, I actually think it’s a pretty solid everyday ceremonial-style matcha.
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Reviewed in the United States on May 30, 2026
★★★★★ 3
Ok for the price but not amazing
Flavor Name: Ceremonial Grade, Size: 1.4 oz (40g)
It is fine for the price but has a bit of that unpleasant cheap matcha taste so wont be rebuying. Decent bitterness but not really creamy or sweet in my opinion. The color is good tho so aesthetically it is very pretty.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Best quality for price!
Flavor Name: Ceremonial Grade, Size: 1.4 oz (40g)
One of the best ceremonial matcha powders I’ve ever tried! It blends and froths up so easily and it tastes like true authentic matcha. I was very surprised with the quality and so happy I found a new one.
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Reviewed in the United States on June 3, 2026