ST 2.5 Series Spring Terminal Block Supplier
Product Highlight
The ST 2.5 series (spring-cage/clip-in connection style) from Phoenix Contact offers reliable wiring with spring-clamp technology, enabling vibration-resistant, maintenance-free connections. For example: STTB 2,5 (3031212) with spring-cage connection, rated cross-section 2.5 mm². United machinery, is a well-known company for ST 2.5 Series Spring Terminal Block Supplier across West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad and also Saudi Arabia and UAE.
Our product variant of ST 2.5
Product Model | Part Number |
ST 2.5 BK | 3037122 |
ST 2.5 BU | 3031225 |
ST 2.5 GN | 3037106 |
ST 2.5 OG | 3037070 |
ST 2.5 RD | 3037096 |
ST 2.5 YE | 3037083 |
ST 2.5-PE | 3031238 |
Phoenix Contact 3037122 ST 2.5 BK Series – Black, 2.5mm², Single-Level, Spring Clamp Termination
Feed-through terminal block with a nominal voltage of 800 V and a nominal current of 24 A. It features 2 connections and 1 position, utilizing a spring-cage connection method. The rated cross section is 2.5 mm², while the cross section ranges from 0.08 mm² to 4 mm². It is designed for mounting types NS 35/7.5 and NS 35/15, and is available in gray.
Phoenix Contact 3031225 ST 2.5 BU Series – Blue, 0.08 → 4mm²
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: blue
Phoenix Contact 3037106 ST 2.5 GN Series – Green, Single-Level, Spring Clamp Termination
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: green
Phoenix Contact 3037070 ST 2.5 OG Series Orange, Single-Level, Spring Clamp Termination
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: orange
Phoenix Contact 3037096 ST 2.5 RD Series – Red, 2.5mm², Single-Level, Spring Clamp Termination
Feed-through terminal block, nominal voltage: 800 V, nominal current: 24 A, number of connections: two, connection method: spring-cage connection. Rated cross section: 2.5 mm2, cross section: 0.08 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, colour: red
Phoenix Contact 3037083 ST 2.5 YE Series – Yellow, 0.08 → 4mm², ATEX, IECEx
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: yellow
Phoenix Contact 3031238 ST 2.5-PE Series – Green/Yellow, 0.08 → 4mm², Single-Level, Spring Clamp Termination
Spring-cage protective conductor terminal block, number of connections: 2, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: green-yellow
Applications & Use-Cases
Where the ST 2.5 series spring terminal blocks shine:
- Control panels and switchgear: For signal and power wiring where frequent servicing might occur and you need fast reliable wiring.
- Automation and machine building: When machines operate in high-vibration environments (for example conveyors, motors) and screw terminals may loosen — spring terminals maintain contact.
- Process plants / instrumentation: Because of reliability in harsh environments and guarantee of consistent contact pressure.
- Feed-through and compact designs: The ST/ STTB versions offer double-level options, twin feed-through, and compact width for space-savings in dense panel layouts.
- Grounding and protective conductor (PE) sections: The STTB 2.5-PE / PE/N versions provide dedicated protective conductor terminals with spring connection.
Service Locations
- 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 United Machinery is Your Best Supplier for ST 2.5 Spring Terminal Blocks
- Genuine Phoenix Contact parts: We guarantee authentic Phoenix Contact ST 2.5 series components, avoiding knock-offs or grey market.
- Wide regional coverage: Serving all major states in India (West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad) plus the Middle East (Saudi Arabia: Al Jubail, Jeddah, Riyadh, Al Khobar; UAE: Abu Dhabi, Dubai, Ruwais, Umm Al Quwain).
- Technical support: Our team can advise which variant of ST 2.5 series fits your panel layout, wire size, current/voltage requirement, and whether you need standard feed-through or protective conductor type.
- Stock and logistics: We maintain stock and offer prompt shipping across India + GCC, facilitating quick turnaround.
- Bulk & project supply capability: Whether you’re ordering for a machine build, automation OEM or MRO, we handle volume and provide competitive pricing.
- Documentation & compliance: We can supply datasheets, certificates of conformity, part number cross-references, ensuring your purchase meets audit and project requirements.
