Phoenix Contact UK 5-MTK-P/P Knife-Disconnect Terminal Block

Technical Overview

500V/16A screw connection disconnect terminal block with test sockets. Features 6.2mm width, 51mm height, and -60°C to 110°C operating temperature.

Key Features

Disconnect terminal block functionality.
Equipped with test socket screws for insertion of test plugs.
Screw connection method for secure wiring.
Mounting compatible with NS 35/7,5, NS 35/15, and NS 32 DIN rails.
Space-saving design with a width of 6.2 mm.
Universal and zero-maintenance connection facilitated by the Reakdyn principle.
Features Pollution degree 3 and Overvoltage category III.
Flammability rating according to UL 94 V0 for enhanced safety.

Technical Specification Matrix

Parameter	Value
Product Type	Disconnect terminal block
Number of Positions	1
Number of Connections	2
Nominal Voltage	500 V
Nominal Current	16 A
Thermal Continuous Current (Ith)	16 A
Rated Surge Voltage	6 kV
Connection Method	Screw connection
Rated Cross Section	4 mm²
Conductor Cross Section Range	0.2 mm² - 6 mm²
Mounting Type	NS 35/7,5, NS 35/15, NS 32 (DIN rail)
Color	gray (RAL 7042)
Flammability Rating (UL 94)	V0
Insulating Material	PA (Polyamide)
Operating Temperature Range	-60 °C ... 110 °C
Overvoltage Category	III
Degree of Pollution	3
Maximum Power Dissipation for Nominal Condition	1.02 W
Physical Weight (kg)	0
Dimensions L x W x H (cm)	0 x 0.62 x 5.1

Industrial Applications

1. Industrial Control Panel Maintenance

Safely isolating individual circuits for maintenance or troubleshooting in industrial control panels without de-energizing the entire system. The knife-disconnect feature allows for quick and clear circuit isolation, while test sockets enable easy voltage and current measurements.

Problem Solved

Provides a secure and convenient method for circuit isolation and testing, reducing downtime and enhancing safety during maintenance procedures in control panels.

Circuit isolationTroubleshootingControl panelsTest pointsMaintenance500V16ADIN rail mount

2. Machine Safety Circuit Design

Provides a reliable and easily verifiable disconnection point for safety-related circuits in machinery, ensuring that power can be completely and safely removed from specific machine sections during emergency stops or servicing.

Problem Solved

Ensures positive and visible disconnection of safety circuits, critical for compliance with lockout/tagout (LOTO) procedures and enhancing overall machine safety during interventions.

Safety circuitsEmergency stopMachine safeguardingPositive disconnectionLOTO verification500V16AScrew connection

3. Process Instrumentation Loop Isolation

Facilitates the isolation and testing of individual instrumentation loops (e.g., 4-20mA current loops, sensor signals) in process control systems, allowing for calibration or replacement of field devices without disrupting other operational loops.

Problem Solved

Enables efficient and non-disruptive calibration, testing, and replacement of field instruments by providing dedicated disconnect and test points for individual signal loops.

InstrumentationProcess controlCurrent loopSensor isolationCalibrationField device testingTest sockets-60°C to 110°C