Circuit Breaker Trip Unit
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This page explains how Terminal Block is classified within Electrical Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
Electrical connection interface within a circuit breaker trip unit for secure wire termination and circuit distribution.
Technical details and manufacturing context for Terminal Block
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Current | 10–32 A | Continuous current capacity per circuitIEC 60947-7-1 |
| Rated Voltage | 250–600 V AC | Maximum operating voltageIEC 60947-7-1 |
| Insulation Resistance | ≥100 MΩ | Measured at 500 V DCIEC 60947-7-1 |
| Dielectric Strength | 2.5–4 kV | Withstand voltage for 1 minuteIEC 60947-7-1 |
| Contact Resistance | ≤20 mΩ | Initial value per contact pointIEC 60947-7-1 |
| Operating Temperature | -40–85 °C | Ambient temperature rangeIEC 60947-7-1 |
| Wire Cross-Section | 0.5–6 mm² | Acceptable conductor sizesIEC 60947-7-1 |
| Tightening Torque | 0.5–1.2 N·m | For screw terminalsIEC 60947-7-1 |
| Degree of Protection | IP20–IP54 | Depends on housing and installationIEC 60529 |
| Material | PA66 | Housing; flammability rating V0UL 94 |
| Weight | 5–20 g | Per pole |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| current: | Up to 30A per pole |
| voltage: | Up to 600V AC/DC |
| temperature: | -40°C to +105°C |
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.
12 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.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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The rated current per circuit is typically 10 to 32 A, as per IEC 60947-7-1. However, the exact value depends on the specific model and application, so always verify with the manufacturer.
Acceptable conductor cross-sections range from 0.5 to 6 mm², according to IEC 60947-7-1. Ensure the wire size is within this range and confirm compatibility with the specific terminal block model.
The degree of protection varies from IP20 to IP54, depending on the housing and installation. For example, IP20 is typical for indoor, finger-safe applications, while IP54 offers protection against dust and water splashes. Check the specific model's datasheet.
The listed standard IEC 60947-7-1 is a reference for design and verification. It does not guarantee certification of a specific product. Always confirm compliance and certification with the legal manufacturer or supplier.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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