Modular Switch SV 140 1P 40A by SV — single-pole modular switch 40 A

Modular Switch SV 140 1P 40A is a single-pole modular switch rated for 40 A, designed for DIN-rail mounting in distribution boards. It provides reliable on/off control of a single circuit in residential and light commercial electrical installations. The compact body fits standard panels and allows straightforward wiring for quick installation and maintenance.

Advantages

The single-pole SV 140 1P 40A offers stable circuit interruption with a 40 A current rating suitable for a range of branch circuits. Its modular design ensures space-efficient installation on standard DIN rails and simplifies panel layout. The device features clear mechanical indication of switch position and robust terminals that support secure conductor connections, reducing the risk of loose wiring. Designed for common electrical environments, it supports routine switching tasks while maintaining consistent contact performance.

Suitable for

• Residential distribution boards for lighting and socket circuits
• Small commercial or office electrical panels
• Replacement or retrofit of single-pole switches in modular systems
• Circuits requiring a compact, panel-mounted on/off switch rated to 40 A

Key specifications

• Poles: single-pole (1P)
• Rated current: 40 A
• Mounting: DIN-rail, modular housing
• Function: manual on/off switching of one circuit
• Terminal type: screw/clamp (secure conductor connection)
• Panel width: one modular unit (single-module width)

How to use

Install the Modular Switch SV 140 1P 40A on a standard DIN rail inside the distribution board. Ensure power is isolated before wiring. Connect the supply conductor to the input terminal and the load conductor to the output terminal, tightening terminals to the manufacturer-specified torque. After wiring, restore power and verify correct operation by switching the device on and off and checking the circuit it controls. For safe operation, follow local electrical codes and use appropriately rated protective devices upstream of the switch.

Usage recommendations

Use the switch within its 40 A rating and in environments compatible with standard indoor electrical distribution panels. Periodically inspect terminal tightness and mechanical operation during routine maintenance. When replacing or installing in mixed systems, match conductor sizes and protective device ratings to ensure safe coordination.