Phoenix Contact D-PTTB 2,5 Terminal Block End Cover Gray

Technical Overview

Gray PA end cover for DIN rail terminal blocks. Features UL 94 V0 flammability, -60°C to 110°C operating range, and compliance with railway fire standards.

Key Features

UL 94 V0 flame-retardant PA construction for safe installation in control panels.
Wide operating range of -60°C to 110°C handles extreme industrial conditions.
Certified to DIN EN 45545-2 (R22, R23, R24, R26, HL 1 - HL 3) for railway vehicle use.
Passes NFPA 130 surface flammability, smoke density, and smoke toxicity requirements.
RoHS compliant with no exemptions.
Quick snap-on mounting for easy, tool-free installation.
Provides dust protection and insulation to prevent electric shocks.

Technical Specification Matrix

Parameter	Value
Product type	End cover
Color	gray (RAL 7042)
Material	PA (Polyamide)
Operating temperature	-60°C to 110°C
Storage/transport temperature	-25°C to 60°C (for short periods, not exceeding 24h, -60°C to +70°C)
Permissible humidity (operation)	20% to 90%
Flammability rating according to UL 94	V0
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
EU RoHS compliance	Fulfills EU RoHS substance requirements, no exemptions
Physical Weight (kg)	0
Dimensions L x W x H (cm)	6.8 x 0.22 x 3.96

Industrial Applications

1. Railway Rolling Stock Electrical Panels

This end cover is ideal for securing and insulating DIN rail terminal block assemblies within electrical panels of railway rolling stock, such as passenger trains or locomotives. Its compliance with stringent fire protection standards like DIN EN 45545-2 and NFPA 130 ensures high safety levels in critical transport infrastructure.

Problem Solved

Provides fire-safe and robust termination for DIN rail terminal blocks in railway environments, meeting strict international safety standards for flammability, smoke density, and toxicity in extreme temperatures.

DIN EN 45545-2NFPA 130Railway VehiclesFire ProtectionTerminal Block InsulationExtreme Temperature

2. Industrial Control Cabinets in Harsh Environments

Suitable for protecting terminal block rows in industrial control cabinets and switchgear enclosures that operate under a wide range of ambient temperatures, from freezing cold to high heat. The UL 94 V0 flame-retardant PA material provides essential fire safety, crucial for machinery and process control in diverse industrial settings.

Problem Solved

Secures and insulates open terminal block ends in industrial control panels operating under wide temperature fluctuations (-60°C to 110°C), minimizing fire risk through its V0 flammability rating.

Industrial Control PanelsWide Operating TemperatureUL 94 V0Electrical InsulationDIN Rail MountingFlame-Retardant

3. Marine and Offshore Electrical Enclosures

The D-PTTB 2,5 end cover provides durable and flame-retardant electrical isolation for terminal block assemblies within marine and offshore electrical enclosures. Its robust PA material and high flammability rating contribute to enhanced safety and system reliability in demanding, often corrosive, environments where fire protection is paramount.

Problem Solved

Offers durable, flame-retardant electrical isolation for terminal block assemblies in marine or offshore electrical enclosures, enhancing safety and system reliability in demanding, potentially hazardous conditions.

Marine ElectricalOffshore ApplicationsFlammability RatingPolyamide MaterialElectrical IsolationEnclosure Protection