General
Max. rated operation voltage Ue AC	400 V
Rated operating voltage	400 V
Rated permanent current Iu	63 A
Conditioned rated short-circuit current Iq	5 kA
Number of poles	3
Number of auxiliary contacts as normally closed contact	0
Number of auxiliary contacts as normally open contact	0
Number of auxiliary contacts as change-over contact	0
Device construction	Built-in device fixed built-in technique
Colour control element	Grey
Type of control element	Toggle
Type of electrical connection of main circuit	Screw connection
Degree of protection (IP), front side	IP20
Degree of protection (NEMA)	Other
Colour housing	Grey
Depth	65 mm
Height	77 mm
Material housing	Plastic
Width	43.75 mm
Width in number of modular spacings	2.5
Version as main switch
Version as maintenance-/service switch
Version as safety switch
Version as emergency stop installation
Version as reversing switch
Motor drive optional
Motor drive integrated
Voltage release optional
Suitable for front mounting 4-hole
Suitable for front mounting centre
Suitable for distribution board installation
Suitable for intermediate mounting
Interlockable
Floor mounting

The Hager compact switch SH363N is a 3-pole built-in device for installation in electrical distribution boards. With a rated continuous current of 63 A and a rated operational voltage of 400 V AC, it is designed for use in main distributions and industrial installations. The device features a fixed mounting technique and is manufactured with a width of 2.5 module units (2.5PLE), making it suitable for standard distribution boxes. The operating element is a grey knob, enabling clear and secure operation. The protection class IP20 ensures protection against contact with fingers and against solid foreign objects, but not against water or dust – therefore, installation is restricted to indoor environments.

Applications

The switch is designed as a main switch and as a maintenance/repair switch, making it suitable for use in electrical distributions in industrial and commercial buildings. It is used for the safe disconnection of circuits during maintenance work or in case of faults. The design as a switch disconnector enables a clear disconnection of the circuit, creating a safe working environment. The operating temperature ranges from -5 °C to +40 °C, covering normal indoor conditions.

Functions and Equipment in Detail

The SH363N has no auxiliary contacts (no openers, closers, or changeover contacts), meaning it functions purely as a main and switch disconnector. The connection type is via screw connection, supporting a cross-section of up to 25 mm² for rigid conductors. The device is not lockable and not sealable, meaning it is not suitable for applications with special safety requirements such as emergency stop functions or safety switches. The power loss is 2.60 W per pole, and the total power dissipation at rated current is 7.80 W.

Technology Explained Simply

The switch is designed for an operating voltage of 400 V AC, which corresponds to the standard voltage in industrial and commercial electrical installations. The rated continuous current of 63 A allows operation with high loads, for example with motors or heating systems. The conditional rated short-circuit current is 5 kA, indicating the switch’s ability to limit a short-circuit current when operated in series with a fuse. The insulation voltage Ui is 500 V, indicating the maximum voltage the device can safely insulate. The impulse voltage withstand of 6 kV protects the device against transient voltage surges.

Compatibility and Accessories

The switch is designed for installation in distribution boxes and requires no additional mounting aids. The screw connection type is universally applicable and compatible with standard cables. The device type as a built-in device with fixed mounting technique requires installation in a suitable distribution box, with dimensions (height 77 mm, depth 65 mm, width 43.75 mm) matched to standard distribution box dimensions.

Mounting and Installation

Mounting is carried out in a distribution box using the provided fastening elements. The nominal torque is 2 Nm, which must be observed when mounting the screw connections to ensure a secure and durable connection. The front side of the device has protection class IP20, requiring installation in indoor environments. It is not suitable for front mounting with 4-hole or central mounting, but exclusively intended for installation in distribution boxes.

Operational Advantages

The switch provides reliable disconnection of circuits with high loads and is designed for use in main distributions. The combination of 63 A rated current, 400 V operating voltage, and 3-pole design makes it a robust device for industrial applications. The design as a switch disconnector enables a clear disconnection of the circuit, which is important for maintenance work and safety measures. The use of plastic as the material for the housing ensures good insulation and low weight. The device is halogen-free and RoHS-compliant, ensuring environmental compatibility and compliance with the European Electrical Equipment Directive.