TB 2,5 EI Essential Series Terminal Block Supplier
Product introduction
The TB 2,5 EI Essential Series Terminal Block is a compact, reliable single-level connection block designed for safe, fast and maintenance-friendly wiring in industrial and commercial control panels. Built for everyday electrical distribution and signal termination, the TB 2,5 EI family offers clear marking, secure clamping and multiple colour options for easy circuit identification — making it ideal for panel builders, machine manufacturers, OEMs and electrical contractors. We are one of leading TB 2,5 EI Essential Series Terminal Block Serving West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad, and Internationally in Saudi Arabia & the UAE.
Where you can use this product
- Control panels for motors, drives and PLC racks
- Distribution boards and sub-distribution boxes
- Machine tool electrical cabinets and automation panels
- Building management systems and HVAC panels
- Solar combiner boxes and inverters (signal/power termination)
- Railway and traction auxiliary panels (where applicable)
- Field junction boxes and instrumentation panels
Key benefits of TB 2,5 EI Essential Series Terminal Block
- Compact footprint:saves DIN-rail space and allows denser wiring layouts.
- Reliable clamping:vibration-resistant screw or spring clamp (depending on variant) for secure connections.
- Colour coding:reduces wiring errors and speeds installation & maintenance.
- Clear marking area:easy to label circuits for troubleshooting and documentation.
- High electrical performance:suitable for typical 2.5 mm² conductor loads used in control and signal circuits.
- Quick installation:consistent terminal geometry — faster wiring and reduced labor time.
- Cost-effective:Essential-series balance of performance and price for mass panel production.
Typical technical chart
Note: These are standard, commonly used specification values for 2.5 mm² terminal blocks. Please ask United Machinery for the official datasheet if you need certifiably exact ratings for your application or for any safety approvals.
Parameter | Typical value |
Conductor cross-section | 0.14 – 2.5 mm² (solid / stranded) |
Rated current (Ie) | 24 A (typical for 2.5 mm²) |
Rated voltage (Ue) | ≤ 800 V (application dependent — confirm with datasheet) |
Test voltage | 2.5 kV (typical) |
Torque (screw terminals) | 0.5 – 0.6 N·m (check variant) |
Strip length | 8 – 10 mm |
Mounting | 35 mm DIN-rail (TS35) |
Material (insulator) | Polyamide (PA66) — flame retardant |
Flammability rating | UL 94 V-0 (typical) |
Operating temperature | −40 °C to +105 °C |
Connection type | Screw / spring (verify model) |
Colour options | Natural, RD, YE, BK, GN, BU |
Variants & when to choose them
- Standard (natural)— general use, panels where colour coding is not required. (SKU 3246010)
- RD / YE / BK / GN / BU— use coloured variants to segregate phases, signal/power, safety earth, or control circuits for faster maintenance and error reduction. (SKUs shown above)
- Screw vs Spring— choose screw terminals for ease of re-termination or spring terminals for faster assembly and better vibration resistance (confirm available connection style for each SKU with United Machinery).
3246010 Phoenix Contact – TB 2, 5 EI – Feed-through terminal block
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, number of positions: 1, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, NS 32, color: dark gray
3000849 TB 2,5 EI RD – Feed-through terminal block
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, NS 32, color: red
3000853 Phoenix Contact – TB 2,5 EI YE – Feed-through terminal block
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, NS 32, color: yellow
TB 2,5 EI BK – Feed-through terminal block – 3000854
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, NS 32, color: black
3246720 Phoenix Contact – TB 2,5 EI GN – Feed-through terminal block
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, NS 32, color: green
3246719 Phoenix Contact – TB 2,5 EI BU – Feed-through terminal block
Feed-through terminal block, nom. voltage: 800 V, nominal current: 24 A, number of connections: 2, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.5 mm2 – 4 mm2, mounting type: NS 35/7,5, NS 35/15, NS 32, color: blue
Installation & maintenance tips
- Use the recommended torque (manufacturer datasheet) to avoid conductor damage or loose connections.
- For stranded conductors, use ferrules to improve connection reliability.
- Keep positive/negative and earth lines colour-coded and documented on wiring diagrams.
- Periodically inspect high-current or motor-control terminals for signs of heating or loosening in heavy-duty applications.
We Supply Across India and International
We supply TB 2,5 EI Essential Series Terminal Block 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 United Machinery is preferred in West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad, Saudi Arabia & UAE
- Extensive regional presence:fast local delivery and stocking across major Indian states and international shipping to Saudi Arabia & UAE.
- Trusted sourcing:genuine Essential Series parts with clear SKU tracking (you get the exact part numbers listed above).
- Technical support & pre-sales guidance:panel-building advice, wiring recommendations, and datasheet availability to ensure right-first-time selection.
- Competitive pricing for bulk & OEM orders:tailored quotes for distributors and machine manufacturers.
- After-sales service:replacement, spare parts support and handling of warranty or technical queries.
- Compliance assistance:guidance on selecting variants that meet local safety and industry standards.
