Name: Phoenix Contact STTB 2,5_2P Double-Level Terminal Block - INOSAKI
SKU: Phoenix-3040054
Price: 7.71 USD
Availability: InStock

Technical Overview

Double-level terminal block for spring-cage/plug-in connections, 500V, 22A. Supports 0.08-4mm² conductors, DIN rail mountable. Tested for railway applications.

Key Features

Spring-cage/plug-in connection for simple conductor installation.
Double-level design allows the connection of more than one conductor.
Compact design for maximum space savings.
Tested for railway applications (e.g., DIN EN 50155).
Mounts onto NS 35/7.5 and NS 35/15 DIN rails.
Insulating material: Polyamide (PA), gray color.

Technical Specification Matrix

Parameter	Value
Number of Levels	2
Connection Method	Spring-cage/plug-in connection
Nominal Voltage	500 V
Nominal Current	22 A (with 2.5mm² conductor)
Rated Cross Section	2.5 mm²
Conductor Cross Section Rigid Min	0.08 mm²
Conductor Cross Section Rigid Max	4 mm²
Conductor Cross Section Flexible Min	0.08 mm²
Conductor Cross Section Flexible Max	2.5 mm²
Conductor Cross Section AWG Min	28
Conductor Cross Section AWG Max	12
Stripping Length	8 mm ... 10 mm
Rated Surge Voltage	6 kV
Degree of Pollution	3
Insulating Material	PA (Polyamide)
Flammability Rating (UL 94)	V0
Color	Gray
Mounting Type	DIN rail NS 35/15, NS 35/7,5
Static Insulating Material Application in Cold	-60 °C
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	7.15 x 0.52 x 4.75

Industrial Applications

1. Railway Control Systems

This terminal block is ideal for connecting control and signaling circuits within railway infrastructure, such as in train control units or trackside equipment. Its 'tested for railway applications' feature ensures reliability under harsh operating conditions, including vibrations and temperature fluctuations.

Problem Solved

Provides robust and reliable electrical connections in safety-critical railway environments that require components to withstand demanding operational stresses.

Railway Applications500V22ADIN Rail MountingVibration Resistance

2. Industrial Machine Building

The double-level design of this terminal block allows for high-density wiring in compact control cabinets of industrial machinery. Its spring-cage connection method facilitates quick and secure wiring of various conductor cross-sections (0.08-4 mm²), improving assembly efficiency and reliability.

Problem Solved

Maximizes wiring density in confined spaces and ensures secure, vibration-resistant connections for machine control circuits, reducing downtime and maintenance.

High-Density WiringSpring-Cage ConnectionCompact Design0.08-4mm² ConductorMachine Building

3. Plant Process Control Wiring

Suitable for connecting sensors, actuators, and control signals in process plants, where segregated potentials are often required. The two levels enable organized potential distribution, and the 500V nominal voltage and 22A nominal current support a wide range of industrial control signals and power requirements.

Problem Solved

Offers clear separation and organized routing of different potentials within process control systems, preventing signal interference and simplifying troubleshooting in complex plant setups.

Potential RoutingProcess Control500V22ADIN Rail