APL Series Limit Switch Box

The APL Series Limit Switch Box is a compact, weather proof enclosure with internal adjustable position switches and an external visual indication. It has NAMUR standard mounting and drive, and is ideally suited for mounting on to quarter turn actuators and valves.

The APL Series Limit Switches features:

• Solid and compact design aluminium die-cast housing with polyester powder coated finish.

• Bolt-on Visual Position Indicator.

• “Quick-Set” spring loaded splined cam. No need to adjust again after initial setting. Easy setting without tools.

• Dual cable entries.

• Captive cover bolts to prevent loss when cover is removed.

• NAMUR standard stainless steel shaft and bracket.

Model	APL-2N		APL-3N		APL-4N		APL-5N
Model	Standard	Option	Standard	Option	Standard	Option	Standard	Option
Enclosure Explosion proof	IP67				IP67 Eexd II BT6		IP67 Eexd II CT6
Temperature Range	25° C〜85 ° C
Conduit Entries	2×1/2″NPT	PT 1/2″PF1/2	2×3/4″NPT	PT3/4TF3/4″	2×3/4″NPT	PT3/4″PF3/4	2×3/4″NPT	T3/4″PF3/4″
Terminal Strips	8	–	8	9-24	8	9-24	8	9-24
Position Indicators	0°~90 °	0°~180°	0°~90°	0°~180°	0°~90°	0°~180°	0°~90°	0°~180°
Position Indicators	Closed: Red, Open: Yellow
Switches	Mechanical Switches (Option:Prpximity Sensor)

Materials

Housing Cover & Body	Aluminium die-casting
Shaft	Stainless Steel
Indicator Cover	Polycarbonate
Indicator	ABS/Polycarbonate
Cam	Polycarbonate
Spring	Stainless Steel
Housing Cover Bolt	Stainless Steel
O-Ring	NBR
Bushing	Bronze
E-Ring (shaft)	Stainless Steel
Earth Lug	Stainless Steel
Bracket	Carbon Steel Powder coated

Confirm the Right APL Series Limit Switch Box

Send the valve type, size and torque, the air supply or voltage, and whether it should fail open, fail close or stay in place. The quotation is confirmed against that duty.

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