Selection

Note:

Zn63 (S) adopts a double spring integral mechanism by default. If a single spring modular mechanism is required, a single spring needs to be added to the model backup;

Operating conditions
1. Altitude: 1000m and below;
2. Environmental temperature: upper limit+40 ℃, lower limit -25 ℃;
3. Relative humidity: daily average relative humidity not exceeding 95%, monthly average relative humidity not exceeding 90%, saturated vapor pressure: daily average not exceeding 2.2 × 10 MPa, monthly average not greater than 1.8 × 10 Mpa.
4. Seismic intensity not exceeding 8 degrees;
5. A place free from flammable, explosive, or chemically corrosive substances and intense vibrations.

Features

1. The adoption of a new generation modular spring operating mechanism, which features a compact, simple, well-designed structure, reliable transmission, and easy installation.

2. Integration of the operating mechanism and circuit breaker body: it can be used as a fixed installation unit or combined with a dedicated propulsion mechanism to form a handcart unit.
3. The main power circuit primarily utilizes a solid-sealed pole, and an insulation simplification method can also be selected.
4. The main circuit incorporates a solid insulation structure with an integrated solid-sealed pole, achieving maintenance-free, high reliability, and compact size.
5. The circuit breaker is an E2 grade breaker.
6. The cabinet is equipped with comprehensive five-protection interlocking functions.

 Technical data

Technical datas are shown in Table 1

Note:
1. When the rated current is 3150A, forced air cooling is required
2. The GB1984-2003 electrical life B2 standard is implemented, and the number of short-circuit current interruptions is 274 times.

The mechanical characteristic parameters of the circuit breaker are shown in Table 2

Main technical data of operating mechanism as sheet 3

Overall and mounting dimensions(mm)

ZN63(VS1)-24 hand car phase distance 210 outline dimensions (small solid sealed pole type)

ZN63(VS1)-24 hand car phase distance 275 outline dimensions (small solid sealed pole type)

ZN63(VS1)-24 hand car phase distance 275 outline dimensions (big solid sealed pole type)