Phoenix Contact D-UK 4_10 Terminal Block End Cover Gray

Technical Overview

Gray PA 6.6 end cover, 1.8mm wide, for UK-series terminal blocks. Operates from -60°C to 110°C, UL 94 V0 rated.

Key Features

Designed for UK-series terminal block assemblies.
Manufactured from PA 6.6 material.
UL 94 V0 flammability rating.
Certified to DIN EN 45545-2 for rail vehicle fire protection (HL 1 - HL 3).
Passes NFPA 130 requirements for surface flammability, smoke density, and smoke gas toxicity.
RoHS and REACH compliant.
Provides a clean, protective termination for terminal block rows.
Slim 1.8 mm width for compact installation.

Technical Specification Matrix

Parameter	Value
Product Type	End cover
Color	Gray (RAL 7042)
Material	PA 6.6
Flammability Rating (UL 94)	V0
Operating Temperature	-60 °C to 110 °C
Storage/Transport Temperature	-25 °C to 60 °C (short-term: -60 °C to +70 °C)
Assembly Temperature	-5 °C to 70 °C
Permissible Humidity (Operation)	20 % to 90 %
Relative Insulation Material Temperature Index (Elec., UL 746 B)	130 °C
Fire Protection for Rail Vehicles (DIN EN 45545-2)	R22, R23, R24, R26 HL 1 - HL 3
Surface Flammability NFPA 130 (ASTM E 162)	Passed
Specific Optical Density of Smoke NFPA 130 (ASTM E 662)	Passed
Smoke Gas Toxicity NFPA 130 (SMP 800C)	Passed
Physical Weight (kg)	0
Dimensions L x W x H (cm)	4.25 x 0.18 x 3.59

Industrial Applications

1. Rail Vehicle Control Panels

Essential for securing and insulating the ends of terminal block rows within electrical control panels of trains, trams, and subways, contributing to overall system integrity.

Problem Solved

Ensures fire safety and operational integrity in environments with strict fire protection regulations (DIN EN 45545-2, NFPA 130) and wide temperature fluctuations (-60°C to 110°C), preventing short circuits and providing robust termination.

DIN EN 45545-2NFPA 130UL 94 V0Railway ApplicationsTerminal Block InsulationExtreme Temperature

2. Outdoor Industrial Enclosures

Used to terminate terminal block assemblies in outdoor industrial control cabinets or equipment enclosures exposed to various environmental conditions.

Problem Solved

Its wide operating temperature range (-60°C to 110°C) and robust PA 6.6 material ensure reliability against both freezing cold and intense heat, while providing a secure and insulated end for electrical connections in harsh outdoor settings.

Outdoor RatedIndustrial ControlWeather ResistancePA 6.6InsulationWide Temperature Range

3. High-Reliability Process Control Systems

Integrating into critical process control systems where stable and safe electrical connections are paramount, such as in manufacturing plants or chemical processing facilities.

Problem Solved

The UL 94 V0 flammability rating and high relative insulation material temperature index (130°C) minimize fire risk and maintain insulation performance even under elevated electrical stress or high ambient temperatures, ensuring operational continuity and safety for critical infrastructure.

UL 94 V0130°C RTIProcess AutomationElectrical SafetyFire ProtectionCritical Systems