Technical Overview

Blue single-level DIN rail feed-through terminal block, 690V/24A, 0.2-4mm² wire, -60°C to 110°C. ATEX certified.

Key Features

Screw connection method for secure wire termination
DIN rail mountable (NS 32, NS 35/7.5, NS 35/15)
Universal foot design compatible with DIN and G-profile rails
Single-level terminal block construction
Blue color for easy identification
Constructed from Polyamide (PA) insulating material
Accepts conductor cross sections from 0.2 mm² to 4 mm² (24 AWG to 12 AWG)
ATEX certified (EEx e I/II) for potentially explosive atmospheres

Technical Specification Matrix

Parameter	Value
Nominal Voltage (UN)	690 V
Rated Surge Voltage	8 kV
Nominal Current (IN)	24 A
Minimum Wire Size (Solid)	0.2 mm²
Maximum Wire Size (Solid)	4 mm²
Minimum Wire Size (AWG)	24 AWG
Maximum Wire Size (AWG)	12 AWG
Operating Temperature (Min)	-60 °C
Operating Temperature (Max)	110 °C
Insulating Material	PA (Polyamide)
Degree of Pollution	3
Overvoltage Category	III
Flammability Rating (UL 94)	V0
Number of Levels	1
Number of Connections	2
Screw Thread	M3
Stripping Length	7 mm
Tightening Torque	0.5 - 0.6 Nm
Mounting Type	DIN Rail (NS 32, NS 35/7.5, NS 35/15)
Approvals	BV, CSA, cUL Recognized, cULus Recognized, DNV GL, EAC, KR, RS, UL Recognized
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	4.25 x 0.62 x 4.2

Industrial Applications

1. Industrial Control Panel Wiring

The Phoenix Contact UK 2,5 B BU terminal block provides efficient and secure wire termination within industrial control panels and junction boxes, ensuring organized and safe electrical infrastructure.

Problem Solved

This terminal block offers a robust, reliable screw connection point for distributing power (up to 24A, 690V) and signals. Its wide operating temperature range (-60°C to 110°C) and ATEX compliance address the need for reliable and certified components in demanding industrial environments, preventing wiring disorganization and ensuring electrical integrity.

DIN railscrew connection690V24A-60°C to 110°Ccontrol paneljunction boxATEX Ex e

2. HVAC/R System Electrical Connections in Harsh Environments

This terminal block facilitates secure and stable electrical connections in heating, ventilation, air conditioning, and refrigeration (HVAC/R) systems, particularly those exposed to significant temperature variations.

Problem Solved

Its broad operating temperature range of -60°C to 110°C provides exceptional resilience for reliable operation in outdoor HVAC/R units or industrial refrigeration facilities. The robust screw connection ensures continuous power and control signal integrity, mitigating issues caused by thermal expansion, contraction, or vibration.

HVAC/Rextreme temperature-60°C to 110°Cscrew connectionvibration resistance690V24A

3. Process Automation in Potentially Explosive Atmospheres

The UK 2,5 B BU is suitable for safe and certified electrical wire termination in process automation applications located within potentially explosive atmospheres, such as those found in chemical plants or oil and gas facilities.

Problem Solved

With its ATEX certification (EEx e I/II), this terminal block ensures compliance with stringent safety standards for equipment used in hazardous areas. It allows for secure, explosion-protected connections for sensors, actuators, and control devices without compromising safety or electrical performance (690V, 24A), thereby supporting reliable and safe automation in volatile environments.

Process automationhazardous areasATEXEx eexplosion protection690V24A0.2-4mm² wire

Phoenix Contact UK 2,5 B BU Feed-through Terminal Block

Phoenix Contact UK 2,5 B BU Feed-through Terminal Block

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Industrial Control Panel Wiring

2. HVAC/R System Electrical Connections in Harsh Environments

3. Process Automation in Potentially Explosive Atmospheres