Give Your Solar Distribution Layout a Dedicated Breaker

Bring a clear switching and protection point into a professionally designed DC installation. This TOMZN two-pole miniature circuit breaker offers selectable current ratings in the TOB7Z-63 family for compatible photovoltaic distribution systems.

Key Benefits

• Two-pole format — Use linked poles within the planned DC circuit.
• Current-rating choices — Select the version specified for the installation.
• Compact housing — Keep the breaker within a defined distribution-board layout.

From a small photovoltaic layout to a larger distribution project, the right breaker belongs in the system design from the start. Match the selected device’s ratings, polarity and installation requirements to the circuit.

Frequently Asked Questions

Which manufacturer and model are listed?

TOMZN TOB7Z-63.

How many poles does this listing offer?

The option is for a two-pole breaker.

Which current ratings are offered?

The selector lists 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A.

What type of installation is it listed for?

It is listed for DC distribution and photovoltaic systems.

Does it have wireless controls?

No. The specifications state that it has no wireless functionality.

SPECIFICATIONS

Brand Name: TOMZN 

Certification: CE

Choice: yes

Does it include a Battery?: No

Does it include wireless functionality?: No

EU LVD Voltage: High voltage: Above 50Vac or 75Vdc

High-concerned chemical: none

Is Smart Device: no

Model Number: TOB7Z-63

Origin: Mainland China

Type: Mini,Circuit breaker

1. Product Application
The TOB7Z-63 Series is a DC Miniature Circuit Breaker designed for DC distribution systems. It provides reliable overload and short-circuit protection for electrical equipment. With a high DC rating voltage of up to 1000V, it is suitable for a wide range of industries, including power, telecommunications, transportation, and mining.

 

2.Key Features

Robust Housing: Made of impact-resistant, self-extinguishing, and recyclable thermoplastic.

Enhanced Safety: Features U-tunnel terminals for secure and reliable wire connections.

Improved Thermal Management: Unique air flow design effectively reduces operating temperature between adjacent breakers.

Ergonomic Handle: Safely and comfortably designed for easy operation.

3. Technical Specifications & Parameters

Poles: 2P

Rated Current: 3A-63A

Rated Voltage: DC 1000V

Breaking Capacity: 4,500A (for 6A-63A)

Rated Breaking Capacity (IEC): 6.0kA according to IEC60898 (for 0.5-63A)

Characteristic Curve: C

Electrical Life: Not less than 8,000 cycles

Mechanical Life: Not less than 20,000 cycles

Max. fuse that can be connected to:100AgL(>10kA)

Selective Grade: 3

Working Ambient Temperature: -10℃ to +40℃

Enclosed Protective Class: IP20