Phoenix Contact D-STTB 2,5 Terminal Block End Cover

Technical Overview

Flame-resistant UL 94 V0 polyamide end cover with a -60°C to +110°C operating range. Ensures robust protection for DIN rail terminal blocks. RoHS compliant.

Key Features

UL 94 V0 rated PA material provides robust flame resistance for industrial safety compliance.
Wide operating temperature range of -60 °C to +110 °C suits extreme industrial and outdoor environments.
Compliant with DIN EN 45545-2 fire protection requirements for rail vehicle applications (R22, R23, R24, R26 HL 1-3).
Meets EU RoHS and REACH SVHC substance requirements with no exemptions.
NFPA 130 compliant for surface flammability, smoke density, and smoke gas toxicity.
Effectively seals open terminal sides and integrates with the Clipline complete connection system.
Lightweight design simplifies installation and handling.

Technical Specification Matrix

Parameter	Value
Product Type	End cover
Color	Gray (RAL 7042)
Material	PA (polyamide)
Flammability Rating (UL 94)	V0
Operating Temperature Range	-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 Temperature Index (UL 746 B)	130 °C
Static Insulating Material Application in Cold	-60 °C
Width	2.2 mm
Height	67.6 mm
Depth	39.7 mm
Physical Weight (kg)	0
Dimensions L x W x H (cm)	6.76 x 0.22 x 3.97

Industrial Applications

1. Industrial Control Cabinet Wiring in Hazardous Locations

This end cover is ideal for terminating DIN rail terminal blocks within industrial control cabinets, especially in environments where fire safety is paramount. Its robust flame resistance and wide operating temperature range ensure component integrity and safety.

Problem Solved

Prevents fire propagation within control cabinets by utilizing UL 94 V0 rated material and ensures reliable operation in environments with extreme temperature fluctuations or potential ignition sources.

UL 94 V0flame resistancehazardous environmentsindustrial automationcontrol cabinetsthermal stability

2. Railway and Mass Transit Electrical Panels

Designed for use in electrical distribution and control panels in rail vehicles and mass transit systems. Its compliance with stringent fire protection standards makes it a critical component for passenger safety.

Problem Solved

Provides essential fire protection, minimizing smoke and toxic gas emissions in rail vehicle electrical systems, thereby meeting strict industry safety regulations like DIN EN 45545-2 and NFPA 130.

DIN EN 45545-2NFPA 130rail vehiclesmass transitfire safetyelectrical panelssmoke densitytoxicity

3. Outdoor and Extreme Temperature Industrial Installations

Suitable for protecting terminal block assemblies in installations exposed to severe weather conditions or significant temperature swings, such as outdoor enclosures, remote monitoring stations, or machinery in unconditioned spaces.

Problem Solved

Ensures reliable insulation and mechanical protection of terminal blocks in environments with extreme hot or cold temperatures (from -60 °C to +110 °C), preventing material degradation, ensuring long-term performance, and avoiding electrical faults.

extreme temperatureoutdoor enclosuresindustrial environmentscold resistanceheat resistanceinsulationweather resistance