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AP Series Miniature Pilot Lights

•Turn off power to the AP series pilot lights before installation, re-

moval, wiring, maintenance, and inspection. Failure to turn power

off may cause electrical shocks or fire hazard.

•For wiring, use wires of proper size to meet the voltage and cur-

rent requirements. Improper wiring may cause overheating and

create a fire hazard. Tighten the M3 terminal screws to a torque

of 0.6 to 1.0 N·m. Failure to tighten terminal screws may cause

overheating and fire.

Panel Mounting

When mounting the AP series pilot lights on a panel, use the

optional locking ring wrench. Do not use pliers. Excessive

tightening will damage the locking ring.

Unit

Tightening Torque

AP6M

0.88 N·m

AP2M

0.78 N·m

AP1M

0.29 N·m

AP8M

0.29 N·m

Installing the AC Adapter, DC-DC Converter, and Flasher

Unit

1. Make sure that the voltage rating and terminal style of the AP

series pilot lights are applicable to the AC adapter, DC-DC

Converter, and flasher units.

2. Install the pilot light into a panel cut-out before mounting an

AC adapter, DC-DC Converter, or flasher unit. Note that the

pilot light cannot be installed in a panel cut-out with an AC

adapter, DC-DC Converter, or flasher unit mounted.

3. When installing an AC adapter, DC-DC Converter, or flasher

unit, make sure that the TOP marking is on the same side as

the TOP making of the pilot light. AC adapter, DC-DC Convert-

er, and flasher unit are snapped on to the back of the pilot light.

4. To remove the AC adapter, DC-DC Converter, or flasher unit,

insert the tip of the removal tool into the joint hook and pull

towards you as shown in the photo below.

5. When using an AC adapter, DC-DC Converter, or flasher unit

where the units are subjected to noise, connect a noise su-

pressor across terminals X1 and X2 as shown in the diagram

below.

Wiring

1. Note the positive and negative polarities when wiring DC types.

2. All DC type AP series pilot lights contain a current limiting

resistor, eliminating the need for external resistors.

3. Solder the terminal at 350°C within 3 seconds using a 60W

soldering iron. SnAgCu type lead-free solder is recommended.

When soldering, do not touch the pilot light housing with the

soldering iron. Also ensure that no tensile force is applied to

the terminal. Do not bend the terminal or apply excessive force

to the terminal.

Use a non-corrosive rosin flux.

DC-DC Converter

DC-DC converters employ an electronic oscillating circuit.

Oscillating sounds may be heard depending on operating

conditions, but will not affect performance characteristics.

Marking

AP6M, AP2M, and AP1M round flat lenses contain a white

marking plate inside the lens. (AP8M lens cannot be removed.)

Flasher Unit

Pierce the round mark on the nameplate on top of the flasher unit

with a flat screwdriver and adjust the variable resistor inside.Turn

clockwise to lengthen the flashing period.

TOP

TOP

TOP

TOP

X2 Negative Terminal

X2 Negative Terminal

Positive Terminal

Positive Terminal

Negative Terminal

Negative Terminal

X1 Positive Terminal

X1 Positive Terminal

Nameplate

Nameplate

AP2 Series

AP6 Series

Note: Do not apply excessive force to

terminals X1 and X2 during wiring.

X1

X2

Noise Suppressor

TOP

TOP

X2 Negative Terminal

X1 Positive Terminal

Positive Terminal

Negative Terminal

Nameplate

Note: Do not apply excessive force to

terminals X1 and X2 during wiring.

Safety Precautions

Instructions

EP5041A AP December 2022