Power Distribution Unit
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This page explains how Circuit Breaker / Fuse Holder is classified within Electrical Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A protective device housing that secures and connects circuit breakers or fuses within a Power Distribution Unit (PDU) to interrupt electrical circuits during overloads or faults.
Technical details and manufacturing context for Circuit Breaker / Fuse Holder
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Current | 1–125 A | Must match the breaker/fuse ratingIEC 60947 |
| Rated Voltage | 250–690 V AC | Higher voltage requires larger creepage distancesIEC 60947 |
| Breaking Capacity | 6–50 kA | Must exceed the prospective short-circuit currentIEC 60947 |
| Contact Resistance | ≤0.5 mΩ | Lower resistance reduces heat riseIEC 60947 |
| Insulation Resistance | ≥100 MΩ | Measured at 500 V DCIEC 60947 |
| Dielectric Withstand Voltage | 2.5–5 kV | For 1 minute at 50/60 HzIEC 60947 |
| Operating Temperature | -40–85 °C | Extended range for industrial applicationsIEC 60947 |
| Degree of Protection | IP20–IP65 | IP20 for indoor, IP65 for washdownIEC 60529 |
| Flammability Rating | UL94 V-0 | Required for safety in electrical enclosuresUL 94 |
| Material | PA66+30%GF | Glass-filled nylon for strength and heat resistanceUL 94 |
| Tolerance | ±0.1 mm | Ensures proper fit of breaker/fuseISO 2768 |
| Weight | 50–200 g | Depends on number of poles and material |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Circuit Breaker / Fuse Holder.
This component is essential for the following industrial systems and equipment:
| pressure: | Atmospheric to 1.5 bar (typical enclosure rating) |
| other spec: | Current rating: 0.5A to 800A, Voltage rating: up to 600V AC/DC, Interrupting capacity: 10kA to 200kA |
| temperature: | -40°C to +85°C (operating), -55°C to +125°C (storage) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
8 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The holder securely mounts and electrically connects circuit breakers or fuses within a PDU, ensuring they can interrupt the circuit during overloads or faults.
Common materials include thermoset plastics like polycarbonate or PBT for the housing, copper alloy for contacts, and steel for mounting hardware.
The listed parameters reference IEC 60947 for electrical ratings, IEC 60529 for protection degree, and UL 94 for flammability. Always verify compliance with the manufacturer.
Match the holder's rated current, voltage, breaking capacity, and other parameters to the specific breaker or fuse and the circuit requirements. Confirm all values with the supplier.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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