Name: Phoenix Contact UT 2,5-MT Knife-Disconnect Terminal Block - INOSAKI
SKU: Phoenix-3046362
Price: 3.00 USD
Availability: InStock

Technical Overview

Gray screw-connection knife-disconnect terminal block for DIN rail mounting, rated 500V/20A, supporting 0.14-4mm² conductors.

Key Features

Knife-disconnect function for quick circuit isolation and maintenance.
Reliable screw connection method ensures secure wire termination.
Compatible with NS 35/7,5 and NS 35/15 DIN rails for easy mounting.
Supports a broad range of conductor cross-sections from 0.14 mm² to 4 mm² (26-12 AWG).
Rated for 500 V nominal voltage and 20 A nominal current for robust electrical performance.
Constructed with polyamide (PA) insulating material for electrical protection.
Features a compact design suitable for space-constrained control panels.
Dual bridge shaft enables flexible potential distribution.
Operating temperature range of -60 °C to 110 °C for demanding environments.

Technical Specification Matrix

Parameter	Value
Product Type	Disconnect terminal block
Nominal Voltage	500 V
Nominal Current	20 A
Thermal Continuous Current Ith	20 A
Rated Surge Voltage	6 kV
Connection Method	Screw connection
Rated Cross Section	2.5 mm²
Conductor Cross-section (Rigid)	0.14 mm² - 4 mm² (AWG 26 - 12)
Conductor Cross-section (Flexible)	0.14 mm² - 4 mm²
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 Range	-60 °C to 110 °C
Overvoltage Category	III
Degree of Pollution	3
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	4.91 x 0.52 x 5.78

Industrial Applications

1. Industrial Control Panel Maintenance

In complex industrial control panels, the knife-disconnect feature allows technicians to quickly and safely isolate individual circuits for testing or replacement without disturbing adjacent wiring. This improves maintenance efficiency and safety.

Problem Solved

Time-consuming and error-prone circuit isolation during maintenance in industrial control panels.

Circuit IsolationTroubleshootingControl Panels500V20ADIN Rail

2. Railway Signaling and Control Systems

Railway applications demand robust components resistant to vibrations and wide temperature fluctuations. This terminal block's wide operating temperature range (-60°C to 110°C), secure screw connection, and 500V/20A rating provide a reliable and maintainable solution for connecting sensor and actuator wiring in railway signaling infrastructure, ensuring operational continuity in harsh environments.

Problem Solved

Need for robust, reliable, and easily maintainable electrical connections in harsh railway environments with wide temperature swings and vibrations.

Railway IndustryHarsh EnvironmentVibration ResistanceWide Temperature Range-60°C to 110°C500V20AScrew Connection

3. Modular Machine Building and Reconfiguration

For machine builders creating modular equipment, this terminal block's knife-disconnect function, 20A/500V rating, and support for 0.14-4mm² conductors enable quick isolation of machine sections for commissioning, troubleshooting, or upgrading. This simplifies wiring and reduces downtime in flexible machine configurations.

Problem Solved

Complex wiring and downtime associated with connecting, disconnecting, and reconfiguring modular machine sections.

Modular DesignMachine BuildingCommissioningReconfigurationQuick Disconnect500V20A0.14-4mm² Conductors