PHOENIX CONTACT UK2.5B Feed-Through Terminal Block – UK Series
When a terminal block fails mid-production, the consequences cascade instantly: wiring connections loosen, control signals drop, and entire machine lines halt. In high-density control cabinets—where hundreds of conductors converge—a single unreliable terminal can trigger unplanned downtime that costs thousands per hour. The PHOENIX CONTACT UK2.5B is engineered precisely to eliminate that risk, delivering rock-solid screw-clamp termination for 2.5 mm² conductors in the most demanding industrial environments.
Within the PHOENIX CONTACT UK Series—one of the most widely deployed terminal block families in global industrial automation—the UK2.5B occupies the core position: the universal 2.5 mm² feed-through terminal that balances current capacity, compact footprint, and installation speed. Trusted by panel builders, OEMs, and system integrators across Europe, Asia, and the Americas, the UK2.5B is a de facto standard in IEC-compliant control cabinet wiring worldwide.
Technical Specifications
- Brand: PHOENIX CONTACT
- Part Number: UK2.5B
- Series: UK Series (Feed-Through Terminal Blocks)
- Connection Method: Screw clamp
- Conductor Cross-Section: 0.2 – 2.5 mm² (AWG 24–12)
- Rated Voltage: 800 V (IEC) / 600 V (UL/CSA)
- Rated Current: 24 A
- Mounting: DIN rail (EN 60715 TH 35)
- Color: Gray (standard)
- Housing Material: Polyamide (PA), self-extinguishing
- Degree of Protection: IP20
- Approvals: UL, CSA, VDE, Ex (ATEX available)
- Operating Temperature: -50 °C to +120 °C
- Standards: IEC 60947-7-1, EN 60947-7-1
Key Features & Benefits
- Reliable Screw-Clamp Connection: Vibration-resistant termination maintains contact integrity under continuous mechanical stress—critical for motor drives, compressors, and mobile machinery.
- High Voltage & Current Rating: 800 V / 24 A rating accommodates the majority of industrial control and power distribution wiring without upsizing.
- Compact DIN Rail Footprint: Slim profile maximizes terminal density in space-constrained enclosures, reducing cabinet size and material cost.
- Color-Coded Variants Available: Gray, blue (neutral/PE), and yellow-green (PE) versions support IEC wiring color standards out of the box.
- Modular & Accessory-Rich Ecosystem: Compatible with PHOENIX CONTACT end brackets, jumpers, test plugs, marking systems, and partition plates for fully integrated wiring solutions.
- Wide Temperature Range: -50 °C to +120 °C suitability covers outdoor enclosures, foundry environments, and cold-storage automation.
- Global Certifications: UL, CSA, VDE, and ATEX approvals simplify compliance for export machinery and multi-market projects.
Industry & Equipment Applications
- Machine Building & OEM Panels: Standard wiring terminal for PLC I/O modules, relay outputs, and sensor signal distribution.
- Power Distribution Cabinets: Feed-through termination for 24 VDC control circuits and 230/400 VAC auxiliary power.
- Process Automation (Oil & Gas, Chemical): ATEX-rated variants support hazardous-area installations.
- Building Automation & HVAC: Compact size suits DIN rail assemblies in field junction boxes and AHU control panels.
- Renewable Energy (Solar, Wind): High voltage rating and UV-resistant housing support inverter and combiner box wiring.
- Railway & Transportation: Vibration-resistant screw clamp meets rolling stock wiring requirements.
- Water Treatment & Utilities: IP20 terminals used inside sealed enclosures for pump and valve control panels.
System Integration & Compatible Parts
The UK2.5B integrates seamlessly within the PHOENIX CONTACT UK Series ecosystem. Commonly paired components include:
- UK2.5B-BU – Blue neutral conductor terminal (same footprint)
- UK2.5B-GN – Yellow-green PE terminal
- D-UK2.5B – Double-level version for higher wiring density
- UK 2.5 QUATTRO – Four-level terminal for ultra-compact layouts
- E/UK – End bracket for UK Series rail assembly
- UK-MTG TW – Mounting foot for tool-free rail snap
- ZB 5 – Jumper bar for multi-pole bridging
- KMK 3 – Marker card system for terminal labeling
Contact Konmask.com to source complete UK Series assemblies or mixed BOM lists in a single order.
Our Quality Assurance Process
- Authorized Supply Chain: All PHOENIX CONTACT parts are sourced through verified distribution channels with full traceability documentation.
- Incoming Inspection: Each shipment undergoes visual inspection, label verification, and cross-check against PHOENIX CONTACT part number databases before dispatch.
- Counterfeit Prevention: We do not source from gray-market channels. Authenticity certificates and test reports are available upon request.
- Packaging Integrity: Products are shipped in original manufacturer packaging or equivalent ESD-safe protective packaging to prevent transit damage.
- Documentation Support: Datasheets, certificates of conformity, and ATEX declarations available for qualified buyers.
How to Order
- Step 1: Submit your inquiry via the Contact Us page or email support@konmask.com with your required quantity and delivery timeline.
- Step 2: Our technical team will confirm availability, lead time, and provide a formal quotation within 24 business hours.
- Step 3: Upon PO confirmation, we arrange shipment via DHL, FedEx, or sea freight depending on order volume and destination.
- Step 4: Tracking information and shipping documents (commercial invoice, packing list, COO) are provided upon dispatch.
Minimum Order Quantity: No MOQ for sample orders. Volume pricing available for orders of 100+ pcs.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation Components – PLC modules, DCS parts, terminal blocks, and control hardware from leading global brands.
- ✅ Global Shipping – We ship to 50+ countries with full export documentation support.
- ✅ Technical Expertise – Our team includes experienced automation engineers who can assist with part selection, compatibility checks, and BOM optimization.
- ✅ Responsive Inquiry Handling – Quotations within 24 hours; urgent orders prioritized.
- ✅ Flexible Order Quantities – From single-unit samples to bulk production orders.
- ✅ Verified Supply Chain – Traceable sourcing with anti-counterfeit measures for every shipment.
Frequently Asked Questions
Q: What is the maximum conductor size for the UK2.5B?
A: The UK2.5B accepts conductors from 0.2 mm² to 2.5 mm² (AWG 24–12), covering the vast majority of control wiring applications.
Q: Is the UK2.5B compatible with 35 mm DIN rail?
A: Yes. The UK2.5B snaps directly onto standard EN 60715 TH 35 DIN rail without additional adapters.
Q: Can I order the UK2.5B in colors other than gray?
A: Yes. PHOENIX CONTACT offers the UK2.5B-BU (blue) and UK2.5B-GN (yellow-green) variants. Contact us to confirm stock availability.
Q: Do you provide ATEX-certified versions for hazardous areas?
A: PHOENIX CONTACT offers ATEX-rated variants within the UK Series. Please specify your zone classification and we will confirm the correct part number.
Q: What is the lead time for bulk orders?
A: Standard stock items typically ship within 3–7 business days. For large volume orders, lead time is confirmed at quotation stage.
Q: Can you supply a full BOM including accessories (jumpers, end brackets, markers)?
A: Yes. Konmask.com can fulfill complete UK Series BOM lists. Send your parts list to support@konmask.com for a consolidated quotation.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
