The 170/172-Series pushbutton switches are single pole, high amperage switches suitable for shallow back panel applications. These switches are momentary action and require an actuation force of 2.5 lbs. The 170/172-Series switches are equipped with a slow-make, slow-break contact mechanism and are rated at 15 amps at 125VAC.
Comment: The UK is closer to deindustrialisation than reindustrialisation
"..have been years in the making" and are embedded in the actors - thus making it difficult for UK industry to move on and develop and apply...