Name: Phoenix Contact ST 2,5-QUATTRO Feed-through Terminal Block - INOSAKI
SKU: Phoenix-3031306
Price: 6.47 USD
Availability: InStock

Technical Overview

800V, 24A feed-through terminal block. 4 spring-cage connections, 0.08-4mm² wire range. DIN rail mount. -60°C to 110°C. UL 94 V-0.

Key Features

Spring-cage connection method for reliable and vibration-resistant wiring.
Supports conductor cross sections from 0.08 mm² to 4 mm² (28-12 AWG) solid and 0.08 mm² to 2.5 mm² (28-14 AWG) flexible.
Designed for DIN rail mounting on NS 35/7,5 and NS 35/15.
Compact width of 5.2 mm for space-saving installations.
Features four connections per level for efficient potential distribution.
Tested and suitable for railway applications.
Wide operating temperature range of -60 °C to 110 °C.
Housing material is Polyamide (PA) with a UL 94 V-0 flammability rating.

Technical Specification Matrix

Parameter	Value
Connection Method	Spring-cage connection
Nominal Voltage (UN)	800 V
Nominal Current	24 A
Rated Surge Voltage	8 kV
Conductor Cross Section Solid (Min)	0.08 mm² (28 AWG)
Conductor Cross Section Solid (Max)	4 mm² (12 AWG)
Conductor Cross Section Flexible (Min)	0.08 mm² (28 AWG)
Conductor Cross Section Flexible (Max)	2.5 mm² (14 AWG)
Number of Connections	4
Mounting Type	DIN Rail (NS 35/7,5, NS 35/15)
Operating Temperature Range	-60 °C to 110 °C
Flammability Rating	UL 94 V-0
Housing Material	Polyamide (PA)
Color	Gray (RAL 7042)
Stripping Length	8 mm - 10 mm
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 Industrial Control Panel Wiring

This terminal block is ideal for compact industrial control panels where space is at a premium. Its 5.2mm width and four spring-cage connections allow for efficient, high-density wiring and potential distribution, crucial for complex control systems without requiring extensive panel real estate.

Problem Solved

Limited space in control cabinets and the need for reliable, compact connections for multiple conductors at a single potential.

Compact designHigh-density wiringSpring-cage connectionDIN rail mountPotential distribution

2. Railway Signaling and Rolling Stock Power/Signal Distribution

Given its 'tested for railway applications' status and wide operating temperature range of -60°C to 110°C, this terminal block is perfectly suited for use in railway signaling equipment and within rolling stock. It provides robust, vibration-resistant power and signal connections in the demanding environmental conditions of railway operations.

Problem Solved

Ensuring reliable electrical connections in harsh railway environments, including extreme temperatures and vibrations, as per railway standards.

Railway applicationsWide operating temperatureVibration resistance800V nominal voltageDIN EN 50155

3. Process Automation Sensor/Actuator Junction Boxes in Harsh Environments

With its 800V/24A ratings, UL 94 V-0 flammability rating, and broad operating temperature range, this terminal block can be effectively deployed in junction boxes for connecting multiple sensors and actuators in process automation. It withstands harsh industrial environments like chemical plants, providing safe and secure connections where temperature extremes and potential fire hazards are present.

Problem Solved

Providing safe, reliable, and thermally robust electrical connections for multiple I/O points in demanding process industry environments.

High voltageHigh currentWide operating temperatureUL 94 V-0Spring-cage connection