Description
Limit Switch Saiko Adjustable Thermoplastic Roller Lever SZ-8108 5A 250V 1NO+1NC
■ Double-circuit type of limit switch.
■ Compact new design approximately 1/3 the size of TMAZTZ vertical limit switches.
■ With strong zinc cast base, and reinforced plastics outer shell.
■ Structure enables the terminal section to be fully opened for easy wiring.
■ Degree of protection: IP65
■ Aslo includes stainless steel roller model
■ Contact Form:
TZ-8108 Limit Switch Voltage Ratings
| Rated voltage | Noninductive Load (A) | Inductive Load (A) | ||||||
| Resistance Load | Lamp Load | Inductive Load (A) | Motor Load | |||||
| NC | NO | NC | NO | NC | NO | NC | NO | |
| 125VAC | 5 | 5 | 1.5 | 0.7 | 3 | 3 | 2 | 1 |
| 250VAC | 5 | 5 | 1 | 0.5 | 3 | 3 | 1.5 | 0.8 |
| 8VDC | 5 | 5 | 3 | 3 | 5 | 4 | 3 | 3 |
| 14VDC | 5 | 5 | 3 | 3 | 4 | 4 | 3 | 3 |
| 30VDC | 5 | 5 | 3 | 3 | 4 | 4 | 3 | 3 |
| 125VDC | 0.4 | 0.4 | ||||||
| 250VDC | 0.2 | 0.2 | ||||||
| Inrush Current | N.C: below 24A, N.O: below 12A | |||||||
NOTE:
1. Inductive load has a power factor of 0.4 min.(AC) and a time constant of 7 msec.max.(DC).
2. Lamp load has an inrush current of 10 times the steady-state current,while motor load has an inrush current of 6 times the steady-state current.
3. Product with spring, its usable range of operating part is within one third of the whole spring length from the front end of spring.
SZ 8108 Adjustable Roller Lever Limit Switch Characteristics
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High rigidity structure, made of high-strength plastic and aluminum;
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Cast (head and lid clinging to the box);
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Small size, waterproof and oilproof structure;
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Built-in micro switch, double spring mechanism, longer mechanical life;
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Easy wiring circuit opening design.
| Operation speed | 0.5mm-50cm/sec |
| Operating frequency | Electical: 30 operations/minute |
| Contact resistance | 25mΩ max. (initial value) |
| Insulation resistance | 100mΩ Min. (below 500VDC) |
| Shock | Mechanical durable: 1, 000m/Sec2 (about 100G'S) Malfunction: 300m/Sec2 (about 30G'S) |
| Ambient temperature | -5~+65℃ (With no icing) |
| Humidity | <95% RH |
| Weight | About 130 to 190g |
| Degree of protection | IP65 |
| Electrical Life | Above 500000 |
Limit Switch SZ-8108 Operating Characteristics
| Operating Characteristics | Model | SZ-8104 | SZ-8107 | SZ-8108 | SZ-8111 | SZ-8112 | SZ-8122 | SZ-8166 | SZ-8167 | SZ-8168 | SZ-8169 |
| Operating force | OF (Max) | 5.88N | 5.88N | 7.84N | 9.8N | 9.8N | 9.8N | 0.88N | 0.88N | 0.88N | 0.88N |
| Release force | RF (Min) | 0.49N | 0.69N | 0.49N | 2.94N | 2.94N | 2.94N | 一 | 一 | 一 | 一 |
| Pre-travel | PT (Max) | 20° | 20° | 20° | 1.5mm | 1.5mm | 1.5mm | 30mm | 30mm | 30mm | 30mm |
| Over-travel | OT (Min) | 75° | 75° | 75° | 4mm | 4mm | 4mm | 一 | 一 | 一 | 一 |
| Movement differential | MD (Max) | 10° | 10° | 10° | 1.2mm | 1.2mm | 1.2mm | 一 | 一 | 一 | 一 |
| Total travel | TT (Min) | 95° | 95° | 95° | 5.5mm | 5.5mm | 5.5mm | 一 | 一 | 一 | 一 |
| Operational position | OP | 一 | 一 | 一 | 26±0.8mm | 一 | 一 | 一 | 一 |
FAQ:
| Q1: Is stainless steel roller better than nylon roller? |
|
A1: No, the cost of metal is higher, but just a difference in raw materials, not related A or B class. In some situation we prefer the nylon one |
