MJ Limit Switches
Robust precision limit switches with a variety of different stainless steel control elements available.
IP67 metal enclosure, 230V / AC 10A NO + NC contacts.
Life of at least 15 million circuits
Precision switch with metal enclosure
- UL and CUL Listed (File No. E130631)
- Controls are mounted variably in 4 x 90 degrees
- Removable rubber cable input for quick installation
- 2 different types of enclosures
- Even with metals lieverbar Controls
Features :
- Wide choice of heads and actuators.
- Variety of operating characteristics.
- Captive cover screws.
- Dustproof, Oil-Tight, Water-Resistant.
- Stainless steel essentials.
- Standard size & dimensions, 1/2” conduit entry.
- Temperature range +5 ° F to +175 ° F (-1 ° C to +80 ° C)
All oil tight limit switches are 2 circuits limit switches.
1 NO and 1 NC circuits.
The 1 NO and 1 NC contact arrangement is double break isolated
RATING :
| 10A | 125 or 300V AC(resistive) |
| 0.8A | 125 VDC(resistive) |
| 0.4A | 250 V DC |
| 1/2HP | 125 V AC |
| 1HP | 250 V AC |
CIRCUITRY :
CHARACTERISTICS :
| Operating speed | 1mm to 2m/sec |
| Operating frequency | Mechanically : 120 operations/min. Electrically : 30 operations/min. |
| Contact resistance | 15m Ω max.(initial) |
| Insulation resistance | 100M Ω min (at 500 VDC) |
| Dielectric strength | 1,000 VAC, 50/60 Hz for 1 minute between non-continuous terminals 2,200 VAC, 50/60 Hz for 1 minute between each terminal and non-current-Carrying metal part and between each terminal ground. |
| Vibration | Malfunction durability:10 to 55Hz 1.5mm double amplitude. |
| Shock | Mechanical durability : Approx.1,000m/sec2(approx.100G’s) Malfunction durability:Approx.300m/ sec2 (approx.30G’s) |
| Ambient operating temperature | Operating : -10 ° C to +80 ° C |
| Humidity | 95% RH Max |
| Service life | Mechanically : 15,000,000 operations min Electrically :(2.5A,110VAC)MAX 500,000 operations min. |
| Degree of protection | IEC 529 class IP65 (Sealed accessories requirement) |
ORDER GUIDE :
Standard type ~ 2 Crews :
| MJ-7101 | MJ-7102 | MJ-7102R | MJ-7103 | MJ-7104 |
| MJ-7106 | MJ-71326 | MJ-3241 | MJ-3242 | MJ-3243 |
| MJ-3244 | MJ-7107 | MJ-7107L | MJ-7108 | MJ-7204 |
| MJ-7207 | MJ-7207L | MJ-7208 | MJ-7001N |
Plastic roller type (Custom made) :
| MJ-7104-P | MJ-7204-P | MJ-7108-P | MJ-7208-P |
50mm rubber’s roller type(Custom made): 50mm
| MJ-7204-26 | MJ-7206-26 | MJ-7108-26 | MJ-7208-26 |
Metal roller type( Custom made)
| MJ-3241-M | MJ-3242-M | MJ-3243-M | MJ-3244-M |
OVERTRAVEL TYPE :
The Overtravel Type is a limit switch which is provided with a greater OT to facilitate dog setting.
Since this type is indentical to the Basic Type in dimension, both types are interchangeable.
The Overtravel Type is classified into two versions -71 series and -72 series
71 series
The head of -71 series switch can be installed in any of the four directions : 45X operation on either side-possible
72 series
The head of -72 series switch can be installed only in two directions, forward and backward : 90X operation on either side-possible
ROTARY ACTUATION :
REMARK :
MJ-7107L,MJ-7207L 395mm long stick : 395mm
IN-LINE PLUNGER ACTUATION :
Characteristics:OF-Operating Force;
PT-Pretravel; OT-Over Travel ; DT-Differential Travel
RF-Release Force; OP-Operation Position;
TF-Travel Force; RP-Release Position; TT-Total Travel
