Description
The UTLH21A serves as a specialized terminal connection block and signal distribution module designed for heavy industrial control networks. It acts as the physical termination interface for field wiring, routing critical digital and analog I/O signals directly from field sensors to central control processors while providing robust circuit isolation.
When production deadlines approach, delivery timelines and hardware conditions become critical. This module is stocked and ready to support scheduled maintenance windows or emergency repairs.
- Condition: New Original (New Surplus)
- Availability: In Stock
- Lead Time: Dispatches within 1–2 business days via global air carriers
- Warranty: 12-month complete functional warranty
Pricing Note: The listed cost represents a standard market evaluation point. Final pricing depends on immediate component scarcity, international shipping variables, and volume requirements. Please request an official quotation for guaranteed contract pricing.
Technical Specifications and Field Parameters
Engineering teams require exact parameters to verify field compatibility. The structural and electrical parameters below are extracted from the factory layout sheets.
| Parameter | Value / Range |
| Model Code | UTLH21A |
| Module Type | Terminal Termination and Distribution Block |
| Max Operating Voltage | 250 V AC / 125 V DC |
| Current Rating | 10 A per channel maximum |
| Terminal Connection Type | Screw-clamp compression terminals |
| Wire Size Capacity | 0.2 to 2.5 mm^2 (24 to 12 AWG) solid or stranded |
| Channel Count | 24 independent termination points |
| Insulation Resistance | > 100 M\Omega at 500 V DC |
| Mounting Configuration | Standard 35 mm DIN rail installation |
| Dimensions | 85 mm × 120 mm × 55 mm |
Field Implementation and System Engineering Notes
Are you upgrading an active control rack? In field deployments involving high-vibration environments, securing the terminal screws to the recommended torque specifications prevents micro-arcing. The UTLH21A routes field signals across a centralized termination block—though your signal clarity degrades if field cables are run parallel to high-voltage motor supply lines without proper shielding. Well, technically the terminal block accommodates up to 12 AWG wiring, but using standard 16 AWG conductors with crimped ferrules makes routing significantly cleaner during tight enclosure setups.
Look closely at the ground bus bar tracking along the bottom edge of the unit. This metal strip bridges the shield drain wires directly to the DIN rail ground. If this mechanical path is broken or corroded, electrical noise will bleed back into adjacent analog input cards. The system may show erratic readings rather than a clean fault code under these conditions, making troubleshooting difficult.
Always check for continuity across the internal trace links before running live current through the blocks. Certain variations of this module utilize internal jumpers that must be clipped to isolate separate power zones.
Global Procurement, Logistics, and Trade Compliance
International freight routing requires strict administrative compliance to clear global distribution networks without unexpected border delays.
Harmonized System (HS) Code and Export Control Status
Accurate document tracking ensures predictable customs entry processing:
- HS Code: 85369010 (Electrical apparatus for switching or protecting electrical circuits, for a voltage not exceeding 1,000 V)
- ECCN: EAR99 (Standard commercial item classification, exempt from specialized export licensing for normal industrial applications)
Incoterms and Delivery Performance Tiers
All international equipment transport defaults to EXW (Ex Works) or DAP (Delivered at Place) conditions. We offer the following shipping methods:
- Express Courier (DHL, UPS, FedEx): Provides door-to-door transit within 3–5 days to primary economic hubs in North America, Europe, and Australia.
- Air Cargo Forwarding: Economical choice for heavy, consolidated maintenance packages.
- Ocean Freight: Utilized for bulk infrastructure inventory replenishment where immediate delivery is not a factor.
Corporate Payment Terms and Financing
We assist standard purchasing departments by offering structured payment options:
- Telegraphic Transfer (T/T): Direct swift transfer for accelerated logistics routing.
- Letter of Credit (L/C): Documented banking coverage available for major international project agreements.
- Corporate Net Terms: Extended invoicing terms are open to established corporate clients following an internal risk and credit review.
Frequently Asked Questions
Can the UTLH21A be used for high-frequency signal lines?
No, this module is built for standard digital control states, relay logic loops, and low-frequency analog loops. High-speed encoder networks require specialized coaxial or twisted-pair terminal modules to avoid signal attenuation.
What should I check if a channel stops conducting?
Inspect the screw contact clamp for over-tightening. In our experience, heavy pneumatic screwdrivers occasionally shear the internal metal leaf, causing an intermittent open-circuit condition that is difficult to spot visually.
Are certificate documents provided for international customs?
Yes, we supply complete commercial invoices, packing slips, and customs declarations. If your regional import protocol requires a specific Certificate of Origin (CO), please state this requirement during checkout.
