STTB 2.5 Double level spring cage terminal block Supplier
Introduction to STTB 2.5 (Model No. 3031270)
The STTB 2.5 is a high-performance double-level spring cage terminal block designed for compact, multi-tier wiring inside industrial control panels. Manufactured with precision and built for demanding environments, this Terminal Block offers two wiring levels in a single slim housing, allowing panel builders to save significant DIN-rail space without compromising on connection reliability. Its Spring-Cage Technology ensures vibration-resistant, maintenance-free, and tool-less wiring — making it ideal for modern automation systems, PLC wiring, distribution boards, and instrumentation controls. United Machinery supplies of STTB 2.5 Double level spring cage 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, ensuring affordable pricing without compromising quality.
Key Features
- Double-level designenables high-density wiring and effective DIN-rail space optimization.
- Spring-cage connection technologyensures quick, secure, and tool-free wiring.
- Vibration-proof and maintenance-free—perfect for continuous industrial operations.
- Clear marking optionallows easy circuit identification and error-free maintenance.
- High-quality PA insulating bodywith excellent flame resistance.
- Universal DIN-rail mounting(NS 35/7.5 & NS 35/15).
- Suitable for multi-circuit distributionin compact panels.
Benefits of Choosing STTB 2.5
- Higher wiring density: Two levels mean more connections in less space, reducing enclosure size and cost.
- Faster installation: Spring-clamp technology speeds up wiring significantly.
- Long-term connection stability: No loosening due to vibration or temperature changes.
- Improved safety: Reliable contact pressure ensures consistent electrical performance.
- Reduced maintenance coststhanks to tool-less operation and durable construction.
- Affordable product without compromising quality, supported by United Machinery.
Technical Specifications — STTB 2.5 (Model No. 3031270)
Parameter | Specification |
Part Number | 3031270 |
Type | Double Level Spring Cage Terminal Block |
Rated Cross Section | 2.5 mm² |
Wire Size Range | 0.2 mm² – 4 mm² |
Rated Voltage | Up to 400 V (varies by standard) |
Rated Current | Up to 24 A |
Connection Type | Spring Cage / Spring Clamp |
Levels | Double Level |
Housing Material | Polyamide PA, UL 94-V0 |
Mounting | DIN-Rail NS 35 |
Color | Standard Grey |
Temperature Range | -40°C to +105°C |
Dimensions | Compact multi-level body (varies by mounting height) |
Technical Chart (STTB 2.5 – 3031270)
Feature | Details |
Model | STTB 2.5 |
Part No. | 3031270 |
Connection Levels | 2 (Double Level) |
Conductor Type | Solid / Stranded |
Max Tightening Requirement | Tool-less spring operation |
Approvals | UL, CE, RoHS |
Marking Options | Marker strips, labels |
Accessories | Bridges, end clamps, markers, partition plates |
How STTB 2.5 Stands Out in the Industry
The STTB 2.5 has become the preferred choice for electrical panel manufacturers, automation integrators, and OEMs because it delivers:
- High-density wiring solutionsfor modern, compact control panels.
- Superior reliabilitycompared to screw-type terminals, especially in vibration-heavy industries like steel plants, cement plants, power plants, and material handling.
- Reduced assembly time, making it ideal for fast-moving manufacturing environments.
- Long-term cost savingsthrough maintenance-free spring technology.
Across India and the Middle East, United Machinery is known for supplying premium-quality Terminal Blocks like the STTB 2.5 at competitive prices, backed by strong availability and technical support.
Our Service Locations of ST 4 Fuse Terminal Block Series
We supply to major industrial hubs in:
- 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 Buy from United Machinery?
- Genuine and certified terminal block supply.
- Strong presence across India & GCC regions (Saudi Arabia & UAE).
- Technical guidance for selection and panel integration.
- Fast delivery and bulk procurement support.
- Affordable solutions without compromising quality.
