Phoenix Contact MBKKB 2,5 Mini Feed-Through Terminal Block

Technical Overview

Dual-level screw terminal block, 500V/24A, for 0.2-4mm² wire, DIN rail mountable. Operates from -60°C to 85°C.

Key Features

Easy potential distribution with standardized plug-in bridges.
Clear arrangement due to marking of all terminal points.
Space-saving compact design.
Mounting option on 15 mm or 35 mm DIN rails.
Fixed bridges and test sockets usable on both levels.
Reliable screw connection method for secure wiring.
Two levels for high-density wiring.

Technical Specification Matrix

Parameter	Value
Nominal Voltage	500 V
Nominal Current	24 A
Rated Cross Section	2.5 mm²
Conductor Cross Section Solid (min)	0.2 mm²
Conductor Cross Section Solid (max)	4 mm²
Conductor Cross Section Flexible (min)	0.2 mm²
Conductor Cross Section Flexible (max)	2.5 mm²
AWG (min)	24 AWG
AWG (max)	12 AWG
Number of Levels	2
Number of Connections	4
Connection Method	Screw connection
Color	Gray
Insulating Material	PA (Polyamide)
Rated Surge Voltage	6 kV
Degree of Pollution	3
Overvoltage Category	III
Insulating Material Group	I
Flammability Class (UL 94)	V2
Minimum Operating Temperature	-60 °C
Maximum Operating Temperature	+85 °C
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	6.2 x 0.52 x 6.2

Industrial Applications

1. High-Density Motor Control Wiring

This terminal block is ideal for connecting control and power circuits within industrial motor control centers. Its two levels allow for compact wiring of multiple signals or power feeds in a limited space, crucial in dense control panels. The 500V/24A rating accommodates typical motor control voltages and currents, while the screw connection ensures a vibration-resistant and reliable connection.

Problem Solved

Overcoming space constraints and ensuring reliable electrical connections for numerous control and power wires in compact motor control center panels.

Motor controlIndustrial panelDIN railHigh density wiringScrew connection500V24A

2. Multi-Channel Sensor/Actuator Termination

In automation systems requiring many sensor and actuator connections, this dual-level terminal block provides efficient and organized termination. The ability to handle conductor cross-sections from 0.2 mm² to 4 mm² (24-12 AWG) makes it versatile for various sensor and actuator cable types. Its robust construction with PA insulating material and -60°C to +85°C operating range ensures durability in industrial environments.

Problem Solved

Providing a robust, organized, and space-efficient method to connect multiple sensor and actuator signals to control systems in industrial automation without requiring excessive panel space.

AutomationSensor wiringActuator controlDIN railDual-level0.2-4mm² wire-60°C to +85°C

3. Compact Auxiliary Power Distribution

The MBKKB 2,5 can serve as a compact solution for distributing auxiliary power within smaller industrial enclosures or sub-panels where space is at a premium. Its 500V, 24A rating is suitable for distributing control power or low-power equipment feeds, and the integrated plug-in bridges simplify potential distribution, reducing wiring complexity and installation time.

Problem Solved

Efficiently and safely distributing control or auxiliary power within limited space industrial enclosures, reducing complex wiring runs with simplified potential bridging.

Power distributionAuxiliary powerCompact enclosureDIN rail500V24APlug-in bridges