WS-V (NF) — molded case circuit breakers (MCCB) up to 600 V AC / 750 V DC
Country: Japan · Model: WS-V (NF)
WS-V (NF) series molded case circuit breakers (MCCB) for voltage up to 600 V AC and up to 750 V DC. Compact 32 and 63 A breakers are only 54 mm wide. They protect low-voltage circuits against overload and short circuit.
- Series
- WS-V (NF), including the compact “F-style”
- Voltage
- up to 600 V AC, up to 750 V DC
- Compactness
- 32/63 A in a width of 54 mm
- Releases
- thermal-magnetic, hydraulic-magnetic, electronic (adjustable, with Y-360 device)
Technical specifications
| Series | WS-V (NF), including the compact “F-style” |
|---|---|
| Voltage | up to 600 V AC, up to 750 V DC |
| Compactness | 32/63 A in a width of 54 mm |
| Releases | thermal-magnetic, hydraulic-magnetic, electronic (adjustable, with Y-360 device) |
| Connection | front, rear, plug-in |
| Variants | NF motor protection up to 225 A; with MDU measuring module (current, voltage, power, energy, harmonics, Modbus/CC-Link) |
| Standards | Japanese and foreign (IEC, UL 489 — some versions) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Three types of releases are provided. The thermal-magnetic one combines a bimetal for an inverse-time characteristic and an electromagnet for instantaneous tripping. The hydraulic-magnetic one delays tripping because of the viscous resistance of silicone oil. In the electronic one the current of each phase is converted by a current transformer, and the circuit forms the trip time from the highest current. Electronic breakers have an adjustable rated current, and with the Y-360 device tripping can be tested and settings monitored. Connection is front, rear and plug-in, where the breaker is inserted into a base and shortens installation time. The breakers safely and repeatedly switch the circuit, disconnect all poles simultaneously and can be fitted with accessories.
How to choose
The release type is chosen by the task, and for motor protection there is NF for currents up to 225 A. If metering is needed, a breaker with the MDU module is used, which has built-in current and voltage transformers and measures phase current, line voltage, power, electrical energy, harmonics, power factor and frequency, and records the cause and current at tripping. For markets requiring UL 489 there are separate versions. For DC up to 1000 V, see NF-HD.
Request a price and lead time
WS-V (NF) — molded case circuit breakers (MCCB) up to 600 V AC / 750 V DC. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What voltage are WS-V breakers rated for?
Up to 600 V AC and up to 750 V DC.
How wide are the compact WS-V of 32 and 63 A?
54 mm in the “F-style” version.
What types of releases does WS-V have?
Thermal-magnetic, hydraulic-magnetic and electronic with an adjustable rated current.
Is there a WS-V with measurement and communication?
Yes, with the MDU module, and data are transmitted via CC-Link or Modbus.
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