Phoenix Contact ST 2,5-QUATTRO Feed-Through Terminal Block

USD 6.47

Total:

800V, 24A spring-cage feed-through terminal block for 0.08-4mm² conductors. 4 connections, DIN rail mountable, -60°C to 85°C. UL 94 V0 rated.

SKU Phoenix-3031306 Category
MOQ: 50 pcs   >>   Order in multiples of 50
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Phoenix Contact ST 2,5-QUATTRO Feed-Through Terminal Block

Model Identifier ST 2,5-QUATTRO
Official Part Number 3031306
GTIN Standard 4017918186784

Technical Overview

800V, 24A spring-cage feed-through terminal block for 0.08-4mm² conductors. 4 connections, DIN rail mountable, -60°C to 85°C. UL 94 V0 rated.

Key Features

  • One-handed wiring reduces installation time and effort.
  • Spring-cage contact elements provide reliable vibration resistance.
  • Accepts very small flexible conductors down to 0.08 mm² without special tooling.
  • No cross-section restriction when using conductors with ferrules.
  • Compatible with standardized CLIPLINE complete bridging, marking, and testing accessories.
  • Compact design for multi-conductor wiring.
  • Rated for 800 V nominal voltage and 24 A nominal current.
  • UL 94 V0 flammability rating.
  • Operating temperature range: -60 °C to 85 °C.
  • Certified to DIN EN 45545-2 (R22-R26, HL 1 - HL 3) for railway applications.

Spring-cage contact elements provide reliable vibration resistance and quick, one-handed wiring.

Technical Specification Matrix

ParameterValue
Nominal Voltage800 V
Nominal Current24 A (with 4 mm² conductor)
Maximum Load Current28 A
Number of Connections4
Connection MethodSpring-cage connection
Nominal Cross Section2.5 mm²
Conductor Cross-section (Rigid)0.08 mm² - 4 mm²
Conductor Cross-section (Flexible)0.08 mm² - 2.5 mm²
Conductor Cross-section (AWG)28 - 12
Stripping Length8 mm - 10 mm
Mounting TypeNS 35/7.5, NS 35/15 (DIN rail)
Rated Surge Voltage8 kV
Overvoltage CategoryIII
Colorgray (RAL 7042)
Insulating MaterialPA (Polyamide), group I
Flammability RatingUL 94 V0
Operating Temperature Range-60 °C to 85 °C
Physical Weight (kg)0.01
Dimensions L x W x H (cm)7.2 x 0.52 x 4.4

Industrial Applications

1. High-Density Control Cabinet Wiring in Industrial Automation

This terminal block is ideal for managing complex wiring in industrial control cabinets where space is at a premium and reliable, vibration-resistant connections are critical for continuous operation.

Problem Solved

Solves the challenge of securely and efficiently connecting multiple conductors in limited space within industrial control panels, ensuring reliability against vibrations and accommodating a range of wire sizes.

Control CabinetVibration ResistanceCompact DesignMulti-conductor WiringDIN Rail MountSpring-cage Connection

2. Railway Vehicle Control and Signaling Systems

Due to its certification to DIN EN 45545-2 and wide operating temperature range, this terminal block is perfectly suited for use in demanding railway applications, including control and signaling systems in rolling stock.

Problem Solved

Provides a compliant and robust solution for electrical connections in railway rolling stock, addressing stringent safety standards for fire protection and ensuring reliable operation under varying temperatures and constant vibrations.

Railway ApplicationsDIN EN 45545-2Vibration ResistanceWide Temperature RangeFire SafetyRolling Stock

3. Distributed Power Distribution in Process Industry Installations

This terminal block facilitates safe and organized power distribution within process industry environments, connecting various sensors, actuators, and control devices with its moderate current/voltage ratings and high safety standards.

Problem Solved

Facilitates safe, organized, and reliable power distribution for multiple loads in process industry settings, particularly where moderate power levels and high safety standards (flammability) are required, and ease of wiring is beneficial.

Process IndustryPower Distribution800V24AUL 94 V0Bridging Capabilities
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