High Voltage 1000V 520A Twin Stud Terminal Block
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Product Highlights
- Explosion-Proof Design: Ensures safety in hazardous environments with certified explosion-proof characteristics.
- High Current Capacity: Rated for up to 1000V and 520A with dual hole terminals for reliable power transmission.
- IP Rated Protection: Isolates dust and water droplets from entering the electrical cabinet to protect components.
- Customizable Models: 3P or 4P combination terminals can be tailored according to specific customer requirements.
- Secure Connection: Twin stud design with hex nut ensures reliable and secure connection for crimped terminals.
- V0 Flammability Rating: Made with PA material offering high flammability resistance for enhanced safety.
- Comprehensive Certifications: Certified by UL, CE, ISO9001, ISO14001, OHSAS 18001, ROSH, CQC, and EX standards.
- OEM and ODM Services: Full customization, minor customization, and flexible customization available from samples or designs.
Product Attributes
- Customization
- Available
- Type
- Dual Hole Terminals
- Material
- PA
- Model NO.
- RFF300
- Application
- Transmission of Electrical Signals
- Character
- Explosion-Proof
- Species
- Terminal
- Production Process
- Injection Molding
- Shape
- Round
- Interface Type
- AC/DC
- Certification
- UL, CE
- Brand
- Huntec
- Color
- Gray
- Rated Current
- 520A
- Rated Voltage
- 1000V
- Pollution Level
- III
- Connection Method
- Screw Type
- Installation Structure
- Guide
- Structural Form
- Spliced
- Transport Package
- PE Film+Carton
- Specification
- Custom
- Trademark
- CHIKU
- Origin
- Jiangxi
- HS Code
- 85369019
- Production Capacity
- 500000pieces/Month
Product Images of High Voltage 1000V 520A Twin Stud Terminal Block
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Product Description

Twin stud terminal, clamp the crimped OT terminal of the wire to the threaded stud, then tighten the hex nut to ensure more reliable and secure connection. Optional protection cover with hinge, safer in use.
| Basic data | |
| Name | RFF Open High Current Terminals |
| Model | RFF35/RFF300/RFF70 |
| Screw size | M6 |
| Connection method | Screw type |
| Rated current | 125A |
| Rated voltage | 1000V |
| Installation structure | guide |
| Structural form | Spliced |
| Width | 107mm |
| Thickness | 27mm |
| High | 54.5mm |
| Power frequency withstand voltage(V/min) | 2500 |
| Wiring range(mm2) | 2.5-10,6-25,16-50,25-70,50-150,70-240,240-300 |






Q1.What certificates do you have?A1:Our company is verified by ISO9001,ISO14001,OHSAS 18001 CE,UL, ROSH, CQC,EX and etc, and we have more than 200 Patents.
Q2. What is your terms of payment?
A2: T/T 30% as deposit, and 70% before delivery.
Q3. What is your sales terms?
A3: EXW, CFR,CIF,CPT,FCA,FOB,DDU.
Q4. How about your delivery time?
A4: Generally, it will take 3 to 7 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity.
Q5. Can you produce according to the samples?
A5: Yes, we can produce by your samples or technical drawings. We have in-house workshops.
Q6. What is your sample policy?
A6: We can supply most of samples free of charge if there are parts in stock, customers should cover the courier cost which will be refunded after orders placed.
Q7. Do you test all your goods before delivery?
A7: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A8: We keep good quality and competitive price to ensure our customers benefit.
About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASI259494". Items marked "" are certified.
Company Profile
HUNTEC, headquartered in Shanghai, is a prominent player in the field of electrical connections and accessories, with its international trading operations centered in Suzhou and a large production base in Jiangxi. The company employs over 500 staff, 15% of whom are dedicated to research and development. Certified with ISO9001, ISO14001, and OHSAS18001, Huntec's products also meet UL, CE, RoHS, and CQC standards, backed by 23 product patents.
Equipped with a specialized R&D team, the company offers a comprehensive catalog of over a thousand products. Their flagship brand, CHIKU, enjoys collaborations with renowned global brands like BYD and Honeywell, reflecting Huntec's commitment to international standards and pursuit of product perfection. With a focus on innovation and quality, Huntec serves the global market with a wide range of top-quality electrical connection solutions.
Our products range as below:
- DIN Rail Terminal Blocks & Accessories
- Relay Module
- Dsitribution Box
- Cable Gland
- Breather Valve
- Switching Power Supply
- Pushbutton&Cam Switch
- IO Module
- Heavy-duty connectors& Fast connectors
- Busbar connectors & Accessories
- Wire Harness
- Lockout Tagout
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 1829th Yangguang Avenue, Xinyu, Xinyu, Jiangxi, China
-
Plant Area
- 18661.6 square meters
-
Number of Employees
- 406
-
Registered Capital
- 25,000,000 RMB
-
Terms of Payment
- T/T, Small-amount payment, D/P, LC
-
International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF
-
Average Lead Time
- Peak Season Lead Time, one month, Off Season Lead Time, within 15 workdays
-
Nearest Port
- Ningbo Port
-
Minimum Order Quantity
- 100Pcs
-
Supply Chain Partners
- 77
Our Production Capability & Technical Expertise
- Main Products
- Terminal Block, Relay, Power Supply, Pushbutton Switch, Cam Switch, I/O Module, Cable Gland, Ventilation Plug, AC Connector, Energy Storage Connector
-
Production Lines
- 16
-
Production Machines
- Injection Molding Machine, Terminal Assembly Machine, Terminal Crimping Machine, Nylon Column Assembly Machine, Cutting Machine
-
Inspection Type for Finished Products
- Random inspection Visual inspection Function inspection
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples,Customization from Designs,Full Customization,Minor Customization,Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 54 people
-
Traceability of Raw Materials
- Yes
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2014-08-13
-
Export Year
- 7 Years
-
Main Markets
- Domestic
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO14001, ISO9001:2015, ISO50001, ISO45001:2018
-
Cooperated with Fortune 500
- Yes
FAQ
- What certificates do you have?
- Our company is verified by ISO9001, ISO14001, OHSAS 18001, CE, UL, ROSH, CQC, EX and etc, and we have more than 200 Patents.
- What is your terms of payment?
- T/T 30% as deposit, and 70% before delivery.
- What is your sales terms?
- EXW, CFR, CIF, CPT, FCA, FOB, DDU.
- How about your delivery time?
- Generally, it will take 3 to 7 days after receiving your advance payment. The specific delivery time depends on the items and the quantity.
- Can you produce according to the samples?
- Yes, we can produce by your samples or technical drawings. We have in-house workshops.
- What is your sample policy?
- We can supply most of samples free of charge if there are parts in stock, customers should cover the courier cost which will be refunded after orders placed.
- Do you test all your goods before delivery?
- Yes, we have 100% test before delivery.
- How do you make our business long-term and good relationship?
- We keep good quality and competitive price to ensure our customers benefit.
Send your message to this supplier
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