ST 6 Series Spring Terminal Block Supplier
United Machinery is one of the leading and trusted suppliers of ST 6 Series Spring Terminal Blocks across West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad, as well as international markets including Saudi Arabia and the UAE. If you are looking for high-performance, durable, and easy-to-install spring terminal blocks for industrial electrical connections, the Phoenix Contact ST 6 Series is the perfect solution.
What is ST 6-TW IN?
The ST 6-TW IN is a high-quality, spring-cage technology-based terminal block designed for reliable electrical wiring and connection. It supports multiple conductor entries and is widely used in industrial control panels, power distribution systems, and automation machinery. This series ensures a tool-free, vibration-proof, and maintenance-free wiring experience—making it ideal for modern electrical and automation systems.
Best Suited Applications
The ST 6 Series is widely used in:
- Control Panels
- Industrial Automation Systems
- Power Supply & Distribution Boards
- Machinery & Equipment Wiring
- HVAC and Building Automation
- Renewable Energy Installations
- Process Control Systems
Outstanding Features of ST 6 Series Spring Terminal Blocks
- Spring cage termination for quick and reliable wiring
- High vibration resistance – ideal for industrial machinery
- Multi-conductor connection capability
- Compact structure for space-saving panel installation
- Clear marking and color-coded variants
- PE (Earth) terminal option available
- Corrosion-resistant and long operational life
- UL, IEC, and international electrical safety compliant
Technical Chart of ST 6-TW IN BU (3036479)
Specification | Details |
Product Type | Spring Terminal Block |
Model | ST 6-TW IN BU |
Part Number | 3036479 |
Rated Voltage | 1000V (varies by application) |
Rated Current | 41A (approx.) |
Wire Range | 0.5 mm² to 10 mm² |
Termination Type | Push-In / Spring Cage |
Housing Material | Polyamide Flame Retardant |
Mounting | DIN Rail |
Types of ST 6 Terminal Blocks Available
Model | Part Number |
ST 6-TW IN BU | 3036479 |
ST 6 | 3031487 |
ST 6 BU | 3031490 |
ST 6-PE | 3031500 |
Phoenix Contact 3036479 ST 6-TWIN Series – Blue, 0.2 → 10mm², Spring Cage Termination, ATEX
Feed-through terminal block, nom. voltage: 1000 V, nominal current: 41 A, number of connections: 3, connection method: Spring-cage connection, Rated cross section: 6 mm2, cross section: 0.2 mm2 – 10 mm2, mounting type: NS 35/7,5, NS 35/15, color: blue
Phoenix Contact 3031487 ST 6 Series – Grey, 0.2 → 6mm², Single-Level, Feed Through Termination
Feed-through terminal block, nom. voltage: 1000 V, nominal current: 41 A, number of connections: 2, number of positions: 1, connection method: Spring-cage connection, Rated cross section: 6 mm2, cross section: 0.2 mm2 – 10 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
Phoenix Contact 3031490 ST 6 BU Series – Blue, 0.2 → 10mm², Single-Level, Spring Clamp Termination
Feed-through terminal block, nom. voltage: 1000 V, nominal current: 41 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 6 mm2, cross section: 0.2 mm2 – 10 mm2, mounting type: NS 35/7,5, NS 35/15, color: blue
Phoenix Contact 3031500 ST 6-PE Series – Green/Yellow, 0.2 → 6mm², Single-Level, Spring Clamp Termination, IECEx
Protective conductor terminal block, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 6 mm2, cross section: 0.2 mm2 – 10 mm2, mounting type: NS 35/7,5, NS 35/15, color: green-yellow
Why ST 6 Series Is the Best Choice?
- Fast Installation Without Tools
- Guaranteed Tight & Safe Electrical Connection
- Suitable for High Current Industrial Applications
- Color-coded design for reduced wiring errors
- Trusted global brand with proven durability
Affordable & Reliable Terminal Block Solutions
United Machinery ensures authentic, high-grade Phoenix Contact connectors at competitive prices. We support bulk orders, fast delivery, and technical guidance for industries across:
- India: West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Assam, Gujarat, Maharashtra, Tamil Nadu, South India, North India & more…
- International: Saudi Arabia & UAE
Why Buy from United Machinery?
- Ready stock available
- Competitive wholesale prices
- Technical support available
- PAN India & GCC Delivery
- Trusted by major industries & panel builders
We supply ST 6-TW IN to:
- West Bengal
- Bihar
- Odisha
- Chhattisgarh
- Jharkhand:Ranchi
- Maharashtra:Mumbai, Pune, Nagpur, Aurangabad
- Rajasthan:Jaipur
- Haryana:Faridabad
- Madhya Pradesh:Bhopal, Indore
- Gujarat:Ahmedabad, Surat, Vadodara
- Assam
- Tripura:Agartala
- Andhra Pradesh:Visakhapatnam
- Meghalaya
- Karnataka:Bengaluru
- Manipur:Imphal
- Tamil Nadu:Chennai, Coimbatore
- Hyderabad
- International Supply:
- Saudi Arabia:Al Jubail, Jeddah, Riyadh, Al Khobar
- UAE:Abu Dhabi, Dubai, Ruwais, Umm Al Quwain
Why Choose United Machinery?
- Authorized & trusted supplier of Phoenix Contact products
- Ready stock availability with fast dispatch
- Expert technical support and after-sales assistance
- Competitive pricing without compromising quality
- Supply capability across PAN India & Middle East markets

