Phoenix Contact UKK 5 Double-Level Terminal Block

Technical Overview

Gray double-level screw terminal block rated 500V/32A, supporting 0.2-4mm² (24-12 AWG) wires. Features -60°C to 110°C operation and DIN rail mounting.

Key Features

Double-level design for high packing density on DIN rails.
Screw connection for secure and non-permanent wire termination.
Supports conductor cross-sections from 0.2 to 4 mm² (24-12 AWG).
Mounts on NS 35/7.5, NS 35/15, and NS 32 DIN rails.
Gray color (RAL 7042) for easy identification.
Wide operating temperature range of -60 °C to 110 °C.
Rated surge voltage of 6 kV.
Flammability rating of V0 according to UL 94.

Technical Specification Matrix

Parameter	Value
Nominal Voltage	500 V (IEC)
Nominal Current	32 A
Connection Method	Screw connection
Conductor Cross Section (Solid)	0.2 mm² - 4 mm²
Conductor Cross Section (Stranded)	0.2 mm² - 4 mm²
AWG Wire Size	24 - 12 AWG
Number of Connections	4
Number of Potentials	2
Color	Gray (RAL 7042)
Mounting Type	DIN rail (NS 35/7,5, NS 35/15, NS 32)
Operating Temperature Range	-60 °C to 110 °C
Rated Surge Voltage	6 kV
Overvoltage Category	III
Degree of Pollution	3
Flammability Rating (UL 94)	V0
Insulating Material	Polyamide (PA)
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	5.6 x 0.62 x 6.2

Industrial Applications

1. Control Cabinet Wiring for Machine Automation

Used within industrial control cabinets to organize and connect control signals and power distribution for machinery and automation systems.

Problem Solved

The double-level design efficiently consolidates multiple connections, saving valuable DIN rail space in complex automation setups. The 32A current rating is suitable for many control and auxiliary power circuits, while the 500V nominal voltage accommodates standard industrial control voltages. The wide operating temperature range ensures reliability in typical industrial environments.

Industrial automationcontrol panelshigh-density wiringpower distributionsignal routingDIN rail mounting500V32A

2. HVAC System Control Integration

Employed in building automation systems, specifically for connecting sensors, actuators, and control modules within Heating, Ventilation, and Air Conditioning (HVAC) control panels.

Problem Solved

Provides a robust and organized interface for the diverse wiring requirements of HVAC components. The double-level screw connection allows for flexible integration of various wire sizes (0.2-4mm²) from different field devices and controllers. The 500V/32A rating supports both control signals and low-power auxiliary circuits common in HVAC systems. The wide operating temperature range is suitable for equipment rooms or outdoor enclosures that experience temperature fluctuations.

Building automationHVAC controlsensor wiringactuator connectioncontrol signalsscrew terminalswide temperature range

3. Process Instrumentation Junction Boxes

Utilized in harsh industrial process environments, typically within junction boxes for connecting and terminating instrumentation signals (e.g., from pressure sensors, flow meters) to the main control system.

Problem Solved

Offers reliable and robust wire termination for process instrumentation in areas subject to moderate pollution (Pollution Degree 3). The screw connection ensures secure contacts, resistant to vibration, which is critical for signal integrity. The double-level design optimizes space within compact junction boxes, while the 0.2-4mm² wire cross-section range accommodates various instrumentation cable types. The 500V rating provides ample headroom for common 24VDC or 120/230VAC control circuits.

Process controlinstrumentationsignal terminationjunction boxindustrial environmentvibration resistancesecure connectionDIN rail