Herga Technology · 6310 Series

6310-AAAG

Active
UL CE NSF

Spa/Pool Air Switch

Herga Technology 6310 Series Introduced circa 1985

Herga air switch — pneumatic push button for wet environments.

Common Applications

Found on the rim of every hot tub and spa in the world. Air switches use pneumatic pressure instead of electrical contacts at the push point — you press a button that sends an air pulse through a tube to a remote electrical switch. This means zero electricity at the point of contact in a wet environment. Also used on food processing equipment and underwater lighting controls.

Specifications

Actuator Function
Momentary
Certifications
UL, CE, NSF
Contact Configuration
SPST (air-actuated)
Material
ABS plastic

Installation Quick Reference

Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).

Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.

Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.

Dimensions

Wiring Diagram

Troubleshooting

Button doesn't respond when pressed

Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.

Works intermittently

Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.

Button feels mushy or doesn't click

The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.

Where to Buy

Price range

$37.86 — $56.53

across 2 distributors

Quick Specs

Actuator Function
Momentary
Certifications
UL, CE, NSF
Contact Configuration
SPST (air-actuated)
Material
ABS plastic

What People Are Saying

+

“Air switches are the only safe option for wet environments. Pneumatic actuation means zero electricity at the push point. Found on every hot tub and spa.”

Reddit r/Pools 35 upvotes View thread →