Technical Overview

800V, 32A DIN rail feed-through terminal block with spring-cage connection for 0.08-6mm² conductors. Operates from -60°C to +85°C.

Key Features

Spring-cage connection for fast, tool-free wiring.
Space-saving design and front connection allow for user-friendly wiring in confined spaces.
Consistent double function shaft offers opportunities for time-saving potential distribution and accommodating test accessories.
Large wiring space enables the use of conductors with ferrules and plastic collars within the nominal cross section.
Vibration-resistant spring-loaded contacts ensure maintenance-free reliability.
ATEX/IECEx certified (II 2 GD Ex eb IIC Gb) for use in hazardous locations.
Tested for railway applications and compliant with DIN EN 45545-2 standards.
Compatible with the CLIPLINE complete system of bridging, marking, and testing accessories.

Technical Specification Matrix

Parameter	Value
Connection Method	Spring-cage connection
Rated Voltage	800 V
Rated Current	32 A (up to 40 A with 6 mm² conductor)
Rated Cross Section	4 mm²
Conductor Size Range (Rigid)	0.08 mm² – 6 mm²
Conductor Size Range (Flexible)	0.08 mm² – 4 mm²
AWG Range	28 – 10 AWG
Stripping Length	8 – 10 mm
Mounting Type	DIN rail (NS 35/7.5, NS 35/15)
Color	Gray (RAL 7042)
Overvoltage Category	III
Pollution Degree	3
Rated Surge Voltage	8 kV
Flammability Rating	UL 94 V0
Operating Temperature	-60 °C to +85 °C
Insulating Material	PA
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	5.6 x 0.62 x 4.4

Industrial Applications

1. Industrial Control Panels in Hazardous Locations

The ST 4 terminal block is suitable for electrical connections within control panels installed in environments with potentially explosive gas and dust. Its ATEX/IECEx certification ensures compliance with strict safety standards for hazardous areas.

Problem Solved

Provides safe and reliable electrical connectivity in explosive atmospheres, mitigating explosion risks and ensuring regulatory compliance.

ATEXIECExhazardous areaEx eb IIC Gbcontrol cabinetspring-cage connection

2. Railway Rolling Stock Electrical Systems

Designed and tested for railway applications, this terminal block is ideal for electrical systems in trains and other rolling stock. It withstands high vibrations, shocks, and wide temperature fluctuations (-60°C to +85°C), meeting DIN EN 45545-2 standards.

Problem Solved

Ensures robust and reliable electrical connections in high-vibration, wide-temperature railway environments, adhering to stringent industry safety and performance standards.

RailwayDIN EN 45545-2vibration-resistantrolling stockshock resistancewide temperature range

3. Process Automation Systems in Harsh Environments

With its wide operating temperature range (-60°C to +85°C), robust spring-cage connection, and UL 94 V0 flammability rating, the ST 4 is perfect for process automation applications exposed to environmental extremes and mechanical stress.

Problem Solved

Offers durable and reliable electrical connections for sensors, actuators, and control signals in industrial processes, reducing downtime and maintenance in demanding conditions.

Process industryautomationharsh environmentwide temperaturevibration-resistantUL 94 V0

Phoenix Contact ST 4 Feed-Through Terminal Block

Phoenix Contact ST 4 Feed-Through Terminal Block

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Industrial Control Panels in Hazardous Locations

2. Railway Rolling Stock Electrical Systems

3. Process Automation Systems in Harsh Environments