Buton / Buton Siviç / Buton Switch, 19 x 19mm, DP4T, Anlık

Honeywell ALM21 Series Push Button Switch, IP67, Front Panel Mount - AML21CBA2AC

This push-button switch is a front-panel mounted, momentary control intended for industrial control and signalling tasks. It is constructed for use where a sealed Interface is required and provides a non-illuminated means of making or breaking circuits with a two-pole double-throw contact arrangement. The unit suits equipment requiring a robust, panel-mounted actuator and soldered electrical connections.

Features and Benefits:

• IP67 rating affords protection in wet or dusty conditions
  Momentary actuation provides temporary contact closure for control inputs
  2PDT contact layout enables switching of two independent circuits
  Solder terminals ensure secure, low-resistance electrical joints
  Maximum operating temperature +55°C supports warm process environments
  Glass-reinforced PBT body resists mechanical and chemical wear

Applications

• Suitable for industrial automation control panels requiring sealed switches
  Ideal for machine control start/stop inputs in harsh environments
  Used with control relays and Interface modules for dual-circuit switching
  Can be used for operator console functions in electrical cabinets
  Suitable for retrofit of panel-mounted controls where soldering is preferred

What material is used for the actuator and how does it perform?

The button face is polycarbonate, offering good impact resistance and dimensional stability under repeated pressing.

How is the switch mounted to a panel and sealed against ingress?

It is designed for front-panel mounting with an IP67 sealing standard to maintain ingress protection when fitted correctly.

Which safety or normative approvals apply to the design?

The construction meets recognised approvals including UL 496
43 & 55
UL 1054
and CSA 22.2 for electrical switch standards.

What environmental temperature range is acceptable for operation?

It operates reliably from 0°C up to a maximum of +55°C for typical industrial applications.

Notes

Lenses to be ordered separately, see stk no. 335-738 typically.

Approvals

UL; CSA; VDE