TPX7-C3 DC Miniature Circuit Breaker Box
DC 600V · 2-Pole · IP66/IK10 enclosed. Engineered to align with IEC 60947-2.
- 2-pole DC MCB, rated DC 500V / DC 600V (also AC 400V)
- Current ratings 10A–63A · Icu 6kA
- IP66 / IK10 polycarbonate enclosure, –25°C to +60°C
- Ready-to-mount, weather-sealed — no separate box + breaker assembly
Product Overview
The TPX7-C3 is an enclosed, 2-pole DC miniature circuit breaker box rated for DC 600V and load currents up to 63A,
built into an IP66/IK10 polycarbonate housing for outdoor solar and energy-storage applications. It provides overload
and short-circuit protection for a single DC circuit — such as a PV string, a battery branch, or a DC feeder — in a
ready-to-mount, weather-sealed unit that removes the need to assemble a separate enclosure and breaker on site.
The enclosure carries an IP66 ingress rating and an IK10 impact rating, and operates across an ambient range of –25°C
to +60°C, making it suitable for rooftop, ground-mount, and harsh-climate sites across the Middle East, Africa, and
Southeast Asia. With an ultimate breaking capacity (Icu) of 6kA and a 2-pole configuration that isolates both the
positive and negative conductors, the TPX7-C3 is designed for DC systems where reliable disconnection under fault
conditions is required.
The unit is engineered to align with IEC 60947-2, and its internal protection components are built with parts sourced
from certified supply-chain partners. Current ratings from 10A to 63A let the same enclosure platform be specified
across residential, commercial, and off-grid installations.
TPX7-C3 Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage Ue (DC) | DC 500V / DC 600V |
| Rated Voltage Ue (AC) | AC 400V |
| Rated Current (In) | 10 / 16 / 20 / 25 / 32 / 40 / 50 / 63 A |
| Ultimate Breaking Capacity (Icu) | 6 kA |
| Poles | 2P |
| Enclosure Material | Polycarbonate (PC) |
| Ingress / Impact Protection | IP66 / IK10 |
| Ambient Temperature | –25°C to +60°C (–13°F to 140°F) |
| Mechanical Endurance | 20,000 cycles |
| Electrical Endurance | 6,000 cycles |
| Mounting | Surface / wall mounting |
| Dimensions (L×W×H) | 160 × 79 × 92 mm (±1 mm) |
| Mounting Hole Spacing | 115 mm (vertical, centre-to-centre) |
| Cable Entry | Gland version: 4 cable glands (2 top / 2 bottom) · MC4 version: pre-wired MC4 connectors |
| Reference Standards | Breaker designed to IEC 60947-2; enclosure IP66 per IEC 60529, IK10 per IEC 62262 |
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Applications
- Residential rooftop solar
— protects individual PV strings or the DC feeder in home solar systems, mounted directly on exterior walls thanks to
its IP66/IK10 rating. - Commercial & industrial PV
— used as a compact, dedicated DC disconnect and protection point for sub-arrays or DC combiner outputs in C&I
rooftop and carport installations. - Off-grid & energy storage (ESS)
— provides overload and short-circuit protection on battery branch circuits and DC feeders in off-grid and hybrid
systems where a sealed, standalone breaker enclosure is preferred.
OEM & Customization
TYPLE offers flexible OEM and ODM services for DC protection devices and enclosed circuit breakers, including custom current ratings, enclosure branding, and cable-entry configuration. Backed by the Liushi low-voltage electrical supply hub, we deliver customized solutions with short lead times.
FAQ
A DC MCB box is an enclosed miniature circuit breaker that provides overload and short-circuit protection for a single DC circuit, such as a PV string or a battery branch. The sealed enclosure lets it be mounted outdoors without a separate weatherproof box.
No. The TPX7-C3 is rated up to DC 600V, so it is intended for DC systems operating at or below that level. For DC 1000V string systems, use a device rated for DC 1000V.
The TPX7-C3 is engineered to align with IEC 60947-2. Component certificates are available through TYPLE’s qualified supply-chain partners.
A 2-pole DC MCB switches and isolates both the positive and negative conductors, which is the standard requirement for ungrounded PV DC circuits. A 1-pole device breaks only one conductor and is used where the other pole is already isolated elsewhere.
The TPX7-C3 is available in current ratings from 10A up to 63A. The ultimate breaking capacity (Icu) is 6kA.
The TPX7-C3 operates in ambient temperatures from –25°C to +60°C (–13°F to 140°F), suitable for hot-climate and outdoor installations.
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