Tesla BELLM Bell Press Momentary Switch Mechanism 10A 240V

Description

Tesla BELLM. Bell Press Momentary Switch Mechanism. White. 16A 250V AC.

The Tesla BELLM is a spring-return momentary switch mechanism with "BELL" engraved on the rocker — designed to clip into Tesla Classic Series and Slimline Series grid plates (SW1PL through SW6PL). The momentary action means the circuit is active only while the button is held pressed; it springs back to off automatically when released, making it the correct mechanism for doorbell and call systems. White bakelite body. Sold individually.

• Tesla BELLM — Bell Press Momentary Switch Mechanism
• "BELL" engraved on rocker for clear identification
• Momentary (spring-return) action — circuit on while pressed, springs off when released
• 1 pole, 16A, 250V AC
• Terminal bores: 4.1mm diameter — suits 4 x 1.5mm² or 3 x 2.5mm² cable
• Horizontal and vertical mount
• Suits Tesla Classic Series and Slimline Series grid plates (SW1PL–SW6PL)
• White bakelite body
• Suitable for residential and commercial environments
• Sold individually

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How the Tesla BELLM Mechanism Works

A momentary switch mechanism — also called a spring-return or press switch — completes the circuit only while it is actively being held pressed. The moment pressure is released, the internal spring returns the contact to its open (off) position and the circuit is broken. This is the correct switching action for doorbell and call systems, where a momentary signal (not a sustained on/off state) is required to activate a chime, buzzer, or call indicator.

The BELLM clips into any gang position of a compatible Tesla Classic Series or Slimline Series grid plate — the same grid plates used for standard switch mechanisms. It can occupy one, some, or all gang positions in a plate depending on the installation requirements. The "BELL" engraving on the rocker face provides clear, permanent identification of the button's function at the switch plate, which is particularly important in multi-gang installations where different mechanism types are combined on the same plate.

In residential installations, the BELLM is typically used at the front door or gate entry where a doorbell push is needed inside a standard switch plate — keeping the installation flush, tidy, and consistent with the surrounding switch plates. In commercial and light industrial environments, the BELLM is used for call systems, nurse call buttons, intercom activators, and other momentary signal applications where a flush wall-mounted push is preferred over a surface-mounted button.

Q: What is the difference between a momentary mechanism and a standard switch mechanism?
A: A standard switch mechanism latches in position — press once to turn on, press again to turn off (the contact stays in whichever position it was last set). A momentary mechanism like the BELLM springs back to off automatically when released — the circuit is only active while the button is held pressed. Use momentary mechanisms for doorbells, call systems, and signal applications; use standard switch mechanisms for lighting and load control.

Q: Which grid plates is the BELLM compatible with?
A: The BELLM is compatible with Tesla Classic Series and Slimline Series grid plates — SW1PL through SW6PL. It clips into any gang position in these plates the same way a standard switch mechanism does.

Q: Can the BELLM be mixed with other mechanism types in the same plate?
A: Yes — each gang position in a Tesla grid plate is independent. You can combine a BELLM with standard switch mechanisms, two-way switch mechanisms, or other engraved mechanism types in the same plate to suit the specific switching requirements of the installation.

Warranty

This product is backed by an extended manufacturer warranty - click here for details.