We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for seed.
ipros is IPROS GMS IPROS One of the largest technical database sites in Japan that collects information on.

seed - Company Ranking(28 companyies in total)

Last Updated: Aggregation Period:Aug 06, 2025〜Sep 02, 2025
This ranking is based on the number of page views on our site.

Company Name Featured Products
Product Image, Product Name, Price Range overview Application/Performance example
Applicable standards ■Japanese domestic standards : Our products are tested in accordance with the following Japanese domestic standards. JEC-2200, JISC6436, JISC5310, JISC61558 and JEC-2210, ■International standards: In compliance with global safety standards, we make direct contact with accreditation bodies in various countries and carry out accreditation tests in-house. -European EN-standard transformers, Low Voltage Directive-compliant transformers applicable standards ◯ IEC61558 EN61558, IEC60076 EN60076 ◯ Manufacturing range 30VA to 200kVA - UL-standard transformers, CSA-standard transformers 〇 UL506, UL1561, UL5085, C22.2 〇 Manufacturing range 30 VA to 200 kVA ■CE, UL and CSA worldwide compliant when manufacturing. ■Information on specifications and dimensions is available separately, please contact our technical department for details. ■Three-phase transformers perform phase and voltage conversions such as three-phase star/delta, delta/star, three-phase to three-phase, six-phase to multi-phase and three-phase to single-phase. Isolation transformers and auto-transformers are available and can conform to Japanese domestic and international standards. 1) Japanese domestic standards (Type: TR/TB/TH series) 2) International standards (Type: TEC/TEC-UL series) UL/CE mark ■Three-phase to single-phase transformer 1) Scott wiring: Phase and voltage conversion such as three-phase to single-phase two-circuit 2) Inverted V-connection: Phase and voltage conversion such as three-phase to single-phase Tsuruta Electric also manufactures transformer systems for PV photovoltaic power generation for full amount self-consumption, as well as transformers and switching panels for storage batteries. =Main product series= ■PPSC: System transformers for photovoltaic power generation with full amount self-consumption. ■OFGS: Switching panels and transformers for industrial storage battery systems. ■SCOTT: Scott transformers for storage battery systems (dry-type scott transformers). ■SPI: Isolation transformers for photovoltaic power generation. ■RS: Transformers integrated with power conditioners (PCS) for photovoltaic power generation, full amount self-consumption type. ■FR: Fire prevention ordinance compliant
---

---

---
  1. Featured Products
    Three-Phase Isolation Transformer with Double-Winding TR/TB Series Class A/BThree-Phase Isolation Transformer with Double-Winding TR/TB Series Class A/B
    overview
    Applicable standards ■Japanese domestic standards : Our products are tested in accordance with the following Japanese domestic standards. JEC-2200, JISC6436, JISC5310, JISC61558 and JEC-2210, ■International standards: In compliance with global safety standards, we make direct contact with accreditation bodies in various countries and carry out accreditation tests in-house. -European EN-standard transformers, Low Voltage Directive-compliant transformers applicable standards ◯ IEC61558 EN61558, IEC60076 EN60076 ◯ Manufacturing range 30VA to 200kVA - UL-standard transformers, CSA-standard transformers 〇 UL506, UL1561, UL5085, C22.2 〇 Manufacturing range 30 VA to 200 kVA ■CE, UL and CSA worldwide compliant when manufacturing. ■Information on specifications and dimensions is available separately, please contact our technical department for details.
    Application/Performance example
    ■Three-phase transformers perform phase and voltage conversions such as three-phase star/delta, delta/star, three-phase to three-phase, six-phase to multi-phase and three-phase to single-phase. Isolation transformers and auto-transformers are available and can conform to Japanese domestic and international standards. 1) Japanese domestic standards (Type: TR/TB/TH series) 2) International standards (Type: TEC/TEC-UL series) UL/CE mark ■Three-phase to single-phase transformer 1) Scott wiring: Phase and voltage conversion such as three-phase to single-phase two-circuit 2) Inverted V-connection: Phase and voltage conversion such as three-phase to single-phase Tsuruta Electric also manufactures transformer systems for PV photovoltaic power generation for full amount self-consumption, as well as transformers and switching panels for storage batteries. =Main product series= ■PPSC: System transformers for photovoltaic power generation with full amount self-consumption. ■OFGS: Switching panels and transformers for industrial storage battery systems. ■SCOTT: Scott transformers for storage battery systems (dry-type scott transformers). ■SPI: Isolation transformers for photovoltaic power generation. ■RS: Transformers integrated with power conditioners (PCS) for photovoltaic power generation, full amount self-consumption type. ■FR: Fire prevention ordinance compliant