Suffix code

Model Code Description
HY-M90 Limit switch (No operation indicator)
HY-LM90 Limit switch (Operation indicator attachment type)
Actuator
(operation part)
2   Roller Plunger Type
3   Ball Plunger Type
4   Roller Adjustable Lever Type
7   Adjustable Rod Wire Type
8   Roller Lever Type
8L   Fork Roller Lever
8R   Ø50 Roller Lever Type
9   Coil Spring Type
Operation indicator
classification
(HY-LM90)
  No operation indicator
A a.c indicator attachment type
D d.c indicator attachment type

* Operation indicator attachment type classification
• M900 series limit switch is generally composed of the product with operation indicator and without operation indicator.
Also divided into the a.c type and d.c type operation indicator.
• It can be used as an operation indicator just by changing the cover of limit switch.
It does not need the separate connection and it selects ON/OFF by rotating the holder 180 degree.

Voltage a.c operation indicator (250 V a.c) d.c operation indicator (24 V d.c)
Model HY-LM90A (a.c) HY-LM90D (d.c)
Indicator type Neon lamp L.E.D
Leakage current approx 1.2 ㎃ (250 V a.c) approx 1.0 ㎃ (24 V d.c)

Ratings
Rated voltage Rated electro current(A)
Resistive load Inductive load electric motor load
N.C N.O
a.c 125V 15 10 3 1.5
250V 10 6 2 1
480V 3 2 1.5 0.75
d.c 8V 15 10 - -
14V 15 10 - -
30V 6 5 - -
125V 0.4 0.05 - -
250V 0.2 0.03 - -
※ In case of electric magnetic coil and incandescent lamp load then it is same as the electric motor load.

Specification

Model Roller plunger Top ball plunger Variable
roller lever
Variable ROD Roller lever Spring wire
M902/LM902 M903/LM903 M904/LM904 M907/LM907 M908/M908 M909/LM909
Appearance
Contact structure M4 screw tightening terminal, 2 circuits double type (1a1b)
Contact material AgNi
Protective structure IP67 (Only when using our company product HYC-M2 in the wire opening)
Operation indicator a.c : Neon lamp, d.c : LED (only with the HY-LM series)
Rated current(le) 6 A 250 V a.c (AC-15, DC-13)
Dielectric strength 2,000 V a.c 50/60 ㎐ for 1 min (between the terminal and non-recharing metal part)
Insulation resistance Min 100 ㏁ (500 V d.c insulated ohmmeter)
Contact resistance Max 50 ㏁ (default value)
Rated voltage(Ue) 250 V a.c, 30 V d.c
Actuator intensity 5 times larger than O.F (force required to operate) 1min to the, operating direction
Vibration Double amplitude 1.5mm, frequency 10 ~ 55 ㎐, continuously 2 hour
Shock 1,000 ㎨ (durability), 300 ㎨ (malfunction)
Allowable operation speed 0.1 ~ 1 ㎧ (without damaging the actuator)
Life
expectancy
Mechanical Min 1million times (open/close frequency 120 times/min)
Electrical Min 300 thousand times (open/close frequency 20 times/min)
Ambient temperature -10 ~ 70 ℃
Ambient humidity 45 ~ 95 % R.H.
Weight Approx 350 g (included the box with HY-M904)