PROTECTION / DISTRIBUTION / SWITCHING
Select protection and switching for the circuit
These product types perform different tasks. Select using circuit requirements and compatible accessories.
01Molded-case circuit breakers
MX
Compact, flexible protection for control cabinets and equipment feeders.
- Product range
NFC models cover frame sizes of 30, 60, 100, 160, 250, 400 and 630 A. Select rated current and breaking capacity for the circuit.
- Installation and accessories
A hinged cover and cassette accessories simplify installation. Auxiliary, alarm, shunt-trip and undervoltage options depend on model; NFC30 internal accessories are factory fitted.
- Current settings
Selected NFC160 / NFC250 models support 0.8 and 1.0 rated-current settings; this is not a universal feature.
02Molded-case and earth-leakage breakers
WS-V
A range of molded-case and earth-leakage protection with multiple trip configurations.
- NF / NV product range
NF molded-case and NV earth-leakage breakers address different protection needs. Check poles, rated current, voltage and breaking capacity.
- Breaking and tripping
Expanded ISTAC breaking technology improves current limitation. Breaking capacity and trip configuration depend on the selected model.
- Accessories and status
Applicable auxiliary, alarm and trip accessories support status monitoring and operation. Confirm leakage sensitivity and trip time by model.
03Miniature circuit breakers and residual-current protection
DIN
Modular protection for final distribution boards and control panels.
- Four product types
Includes MCB, RCCB, RCBO and isolating switches. Select the device according to overcurrent, residual-current or isolation requirements.
- Installation and models
Supports IEC 35 mm DIN rails. MCB models include BH-D6, BH-D6J, BH-D10 and BH-DN, with model-dependent ratings.
- Selection checks
Check poles, rated current, trip curves, AC/DC suitability, breaking capacity and residual-current parameters. RCCB and RCBO have different protection functions.
04Air circuit breakers
WS / AE-SW
Air circuit breakers for main low-voltage distribution and important feeders.
- 630–6300 A range
The catalog describes AE-SW models spanning 630–6300 A for different circuit capacities and installation needs.
- Electronic trips and displays
Applicable electronic trip units and display modules support measurement and protection settings. Functions depend on the trip-unit configuration.
- Communication and operation
Optional CC-Link, MODBUS (RS-485) interfaces and I/O modules support monitoring and switching operations according to configuration.
05Magnetic contactors
MS-T / MS-N
Contactors for motor starting and load switching, with overload relays and accessories.
- Compact design
The MS-T 10 A frame is 36 mm wide, helping reduce panel space. Dimensions of other models must be checked separately.
- Terminals and coils
Integrated terminal covers simplify operation. Choose the coil for the control supply and check auxiliary contacts, surge suppression and interlocks.
- Motor circuit configuration
Select for motor power, voltage, utilization category and switching frequency, with a compatible overload relay and upstream short-circuit protection.
