Phoenix Contact D-ST 2,5-3L End Cover, Gray

Technical Overview

Gray polyamide end cover for D-ST series terminal blocks, 2.2x99.5x50.3mm. Operates from -60°C to 110°C with UL 94 V0 flammability.

Key Features

Compatible with ST 2,5-3L three-level terminal blocks.
Molded from polyamide (PA) material.
Broad -60°C to 110°C operating range.
Certified to DIN EN 45545-2 (R22, R23, R24, R26, HL 1-HL 3) for rail vehicle fire protection.
Passes NFPA 130 requirements for surface flammability, smoke optical density, and smoke gas toxicity.
RoHS compliant with no exemptions.

Technical Specification Matrix

Parameter	Value
Product Type	End cover
Color	Gray (RAL 7042)
Material	PA (Polyamide)
Flammability rating according to UL 94	V0
Ambient temperature (operation)	-60 °C ... 110 °C
Ambient temperature (storage/transport)	-25 °C ... 60 °C (for a short time, not exceeding 24 h, -60 °C to +70 °C)
Permissible humidity (operation)	20 % ... 90 %
Relative insulation material temperature index (Elec., UL 746 B)	130 °C
Fire protection for rail vehicles (DIN EN 45545-2)	R22, HL 1 - HL 3; R23, HL 1 - HL 3; R24, HL 1 - HL 3; 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)	0.01
Dimensions L x W x H (cm)	9.95 x 0.22 x 5.03

Industrial Applications

1. Industrial Control Panels in Harsh Environments

This end cover is ideal for terminating terminal block assemblies within industrial control panels exposed to wide temperature fluctuations and requiring high safety standards.

Problem Solved

Ensures electrical isolation and fire safety (UL 94 V0, DIN EN 45545-2 compliance) in control panels operating in environments from -60°C to 110°C, protecting personnel and equipment from electrical hazards and fire risks.

Industrial control panelelectrical isolationfire safetyUL 94 V0wide operating temperature

2. Rolling Stock and Railway Systems

Suitable for use in electrical systems within trains, trams, and other railway vehicles where strict fire safety and material standards are mandated.

Problem Solved

Meets stringent fire protection requirements for rail vehicles (DIN EN 45545-2 R22, R23, R24, R26, HL 1-HL 3 and NFPA 130 compliance), preventing fire spread and minimizing smoke/toxicity in the event of a fire, enhancing passenger and operational safety.

Rolling stockrailway systemsDIN EN 45545-2NFPA 130fire protectionsmoke gas toxicity

3. Outdoor Electrical Enclosures

Can be employed in outdoor electrical enclosures or junction boxes to protect terminal connections from environmental elements and maintain insulation integrity.

Problem Solved

The PA material and wide operating temperature range (-60°C to 110°C) ensure durability and consistent performance in varying outdoor conditions, providing robust insulation for terminal blocks against dust, moisture, and extreme temperatures.

Outdoor electrical enclosurejunction boxenvironmental protectionpolyamideextreme temperatureinsulation