Product Overview
The Onesto KCD6 63A single-pole DC miniature circuit breaker provides overload and short-circuit protection for correctly specified direct-current circuits. Its DIN-rail format suits compatible distribution boards and control panels, with a 6kA breaking capacity and a maximum operating voltage of 250V DC.
Key Features
- 63A rated current for circuits designed around this protection rating.
- Single-pole, single-break operation interrupts one conductor of the DC circuit.
- 6kA short-circuit breaking capacity for installations with a suitable prospective fault current.
- DIN-rail mounting for installation in compatible electrical enclosures.
- Designed to protect and control DC circuits against overloads and short circuits.
Applications
- DC distribution boards and control panels requiring 63A single-pole protection.
- Domestic and industrial DC electrical installations within the specified ratings.
- Solar-related DC circuits where the system voltage, fault level, conductor size and switching arrangement meet the installation design.
Why Choose This Product?
This breaker offers a compact Onesto protection option for installers who require 63A single-pole DC circuit protection. It forms part of the KCD6 range, allowing the current rating to be selected to suit the circuit while retaining a consistent DIN-rail installation format.
Important Notes
- Installation and device selection must be completed by a qualified electrician in accordance with applicable South African wiring requirements and the manufacturer's instructions.
- A single-pole breaker interrupts only one conductor. It does not disconnect both positive and negative conductors together.
- The local catalogue lists 125/250V DC. The manufacturer's KCD6 single-pole operating rating is 250V DC maximum. The 1000V insulation rating is not permission to operate this single-pole breaker on a 1000V DC circuit.
- Observe the device's polarity, supply/load markings and wiring diagram. Select the trip characteristic to suit the load and verify it against the supplied unit's marking before installation.
- Do not substitute an AC-only breaker for this DC protection application.
- Product images illustrate the range; the current rating printed on the supplied unit will match the ordered version.
Technical Specifications
| Specification |
Detail |
| Brand |
Onesto |
| Model Range |
KCD6 |
| Supplier Product Code |
GL1CDC1063 |
| Product Type |
DC miniature circuit breaker (MCB) |
| Rated Current |
63A |
| Poles |
1P / single pole |
| Breaks |
1 / single break |
| Voltage Rating |
125/250V DC (local catalogue); 250V DC maximum operating voltage for 1P |
| Short-Circuit Breaking Capacity |
6kA |
| Rated Insulation Voltage |
1000V |
| Rated Impulse Withstand Voltage |
6kV |
| Mounting |
DIN rail |
| Standard |
IEC 60947-2 |
