Product Overview
The MCB Matching Terminal 4x10 is a specialized connection block designed to perfectly complement miniature circuit breakers (MCBs) commonly used in distribution boxes, control panels, and industrial electrical enclosures. Featuring four independent poles, this terminal block is engineered to align precisely with the standard 18mm pole spacing of 4-pole MCBs, facilitating clean, organized, and reliable wiring on both the incoming and outgoing sides of MCB installations. Able to accommodate conductors up to 10mm² and support currents up to 63A, it matches the ratings of mainstream MCBs. The unit mounts directly on the same 35mm DIN rail as the MCBs, with spacing precisely aligned to allow side-by-side, professional, and compact installations. Suitable for residential and industrial applications, the MCB Matching Terminal 4x10 is an ideal solution for panel builders, electrical contractors, and distribution box manufacturers aiming to simplify MCB wiring, save approximately 30% of panel space, and improve installation efficiency.
Key Features
Dedicated 4-pole, 4-way design tailored for 4-pole miniature circuit breakers.
Standard 18mm pole spacing ensuring perfect alignment with MCBs for side-by-side DIN rail mounting.
Supports copper conductors from 1.5mm² to 16mm² with a maximum current of 63A.
Direct DIN rail mounting for seamless integration with MCBs.
Ultra-low contact resistance (≤0.5 mΩ) reduces heat generation and enhances connection reliability.
High dielectric strength (≥2.5kV) safeguards operation under electrical stress.
Torque rating of ≥1.2 N·m ensures secure, vibration-resistant terminal connections.
Laser-etched labels on a transparent cover allow clear circuit identification, minimizing wiring errors.
Robust PC housing rated UL94 V-0, resistant to aging and impacts, and suitable for temperatures from -40°C to +105°C.
Available with tubular screw or cage clamp terminals to match different MCB terminal types.
Compact design conserves panel space by about 30% compared to separate terminal blocks.
Universal screw slots compatible with cross and flat screwdrivers for rapid wiring.
Technical Parameters
| Number of Poles | 4 |
| Compatible MCB Width | 18mm per pole |
| Suitable MCB Type | 4-pole miniature circuit breakers |
| Wire Range | 1.5mm² – 16mm² copper |
| Rated Voltage | 400V / 690V AC |
| Rated Current | Up to 63A |
| Contact Resistance | ≤0.5 mΩ |
| Dielectric Strength | ≥2.5kV / 1min |
| Torque Rating | ≥1.2 N·m |
| Terminal Type | Tubular screw or cage clamp |
| Housing Material | PC, UL94 V-0 |
| Cover Material | Transparent polycarbonate with labels |
| Mounting Method | 35mm DIN rail, side-by-side with MCB |
| Protection Rating | IP20 |
| Operating Temperature | -40°C to +105°C |
| Space Saving | Approximately 30% |
| Standards Compliance | IEC 60999-1, GB/T 14048.7, CE, CCC, RoHS |
Application Scenarios
Residential and commercial distribution boxes requiring organized wiring for 4-pole MCBs' input and output.
Industrial control panels for motor control centers, PLC cabinets, and power distribution units.
Temporary power distribution boxes facilitating quick and reliable MCB wiring on construction sites or events.
Photovoltaic AC distribution boxes protecting solar inverter AC output with matched terminals.
Building electrical sub-distribution panels managing floor-by-floor or zone-by-zone wiring.
Equipment control cabinets for machine tools, HVAC systems, and industrial equipment wiring.
Generator distribution panels handling backup power distribution.
Marine and RV electrical panels where space-efficient MCB wiring is essential.
Product Advantages
Precisely matched 18mm pole spacing allows side-by-side installation with 4-pole MCBs on the same DIN rail, offering a professional, factory-like finish.
Saves approximately 30% of panel space by eliminating separate terminal blocks in MCB wiring.
Pre-configured 4-way layout reduces installation time by around 35%, lowering labor costs.
Supports conductors up to 10mm² and currents up to 63A, perfectly matching common MCB ratings.
Dedicated terminals per pole eliminate messy jumper wires, streamlining wiring and maintenance.
Secure, vibration-resistant connections with high torque rating and low contact resistance ensure stable operation and reduce warranty issues.
Available in tubular screw and cage clamp terminal versions to suit installation preferences.
PC housing withstands harsh environments and wide temperature ranges.
Transparent cover with laser-etched labels speeds up wiring verification and troubleshooting.
Versatile application covering residential, commercial, industrial, solar, and temporary power distribution needs.
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