Technical Overview

Double-level terminal block, 500V/28A, push-in connection, 0.2-6mm² wire, -60°C to 85°C, DIN rail mount.

Key Features

Push-in connection technology allows for quick, tool-free wiring of solid or ferruled conductors.
Double-level design integrates two separate circuits within a compact footprint, optimizing panel space.
High conductor pull-out forces ensure vibration-resistant and maintenance-free connections.
Compatible with CLIPLINE complete system accessories for flexible bridging, marking, and testing options.
Designed for robust DIN rail mounting on NS 35/7,5 or NS 35/15 rails.
Tested for railway applications and approved for use in hazardous (Ex) zones.
Operates reliably across a wide temperature range of -60 °C to 85 °C.

Technical Specification Matrix

Parameter	Value
Product Type	Multi-level terminal block
Connection Method	Push-in connection (1st and 2nd level)
Nominal Voltage	500 V (IEC)
Nominal Current	28 A (for 4 mm² conductor)
Rated Surge Voltage	6 kV
Nominal Cross Section	4 mm²
Conductor Cross Section (rigid/flexible)	0.2 mm² - 6 mm² (AWG 24 - 10)
Stripping Length	10 mm - 12 mm
Mounting Type	DIN rail NS 35/7,5, NS 35/15
Color	Gray (RAL 7042)
Insulating Material	PA (Polyamide)
Flammability Rating (UL 94)	V0
Operating Temperature	-60 °C to 85 °C
Degree of Pollution	3
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	8.35 x 0.62 x 5.5

Industrial Applications

1. Industrial Control Panels in Hazardous Locations

This double-level terminal block is ideal for high-density wiring in industrial control panels located in hazardous (Ex) zones. Its compact design allows for efficient space utilization, while the robust push-in connections provide secure, vibration-resistant, and maintenance-free wiring crucial for reliable operation in potentially explosive atmospheres.

Problem Solved

Provides safe, compact, and reliable wiring connections in control panels for hazardous environments, minimizing maintenance and maximizing operational safety.

Explosion protectionATEX/IECExControl panel wiringHazardous areaHigh density wiringVibration-resistantMaintenance-free500V

2. Railway Rolling Stock Wiring Installations

Specifically tested for railway applications, the PTTB 4 terminal block is perfectly suited for electrical connections within rolling stock. Its wide operating temperature range of -60 °C to 85 °C and vibration-resistant push-in technology ensure reliable performance under the dynamic and harsh environmental conditions of railway operations, while the double-level design saves critical space.

Problem Solved

Ensures reliable, space-efficient, and durable electrical connections in railway rolling stock, capable of withstanding extreme temperatures and constant vibrations.

Railway applicationsRolling stockVibration resistanceExtreme temperature (-60°C to 85°C)Compact wiringDIN rail mounting500V

3. Plant and Process Industry Cabinet Wiring

The PTTB 4 is highly effective for power and signal distribution in plant engineering and process industry cabinets. Its 500V/28A rating and tool-free push-in connection technology enable fast installation and commissioning of multiple circuits. The double-level design optimizes space, allowing for more organized and efficient wiring within crowded industrial cabinets.

Problem Solved

Facilitates rapid, reliable, and space-optimized power and signal distribution in industrial plant and process control cabinets, reducing installation time and improving organization.

Process controlPlant engineeringSignal distributionPower distributionSpace savingFast wiringTool-free connection500V28A

Phoenix Contact PTTB 4 Double-Level Push-In Terminal Block

Phoenix Contact PTTB 4 Double-Level Push-In Terminal Block

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Industrial Control Panels in Hazardous Locations

2. Railway Rolling Stock Wiring Installations

3. Plant and Process Industry Cabinet Wiring