| Part Number: | CZ-8 | 104 | N |
|---|---|---|---|
| Explanation: |
Series CZ-8 - Vertical limit switch series |
Actuator 104 - Plastic roller lever |
Cable entry N - M12 cable gland |
CZ-8N vertical limit switches combine a metal housing and reinforced plastic cover with a bottom M12 cable gland. Snap-action 1NO+1NC contacts serve machine position detection, with sixteen actuator configurations covering fixed and adjustable levers, plungers, roller plungers and flexible spring heads. Select the actuator by approach direction, available travel and operating force.
NO terminals are 13-14; NC terminals are 11-12. The specified direct-opening function applies only to the NC contact of the six lever models identified below.
| Model | Head code | Actuator | NC direct opening |
|---|---|---|---|
| CZ-8104N | 104 | Plastic roller lever | Yes |
| CZ-8105N | 105 | Metal roller lever | |
| CZ-8107N | 107 | Adjustable rod lever | |
| CZ-8108N | 108 | Adjustable lever with plastic roller | |
| CZ-8109N | 109 | Adjustable lever with metal roller | |
| CZ-8111N | 111 | Plunger | Not specified |
| CZ-8111MN | 111M | Plunger with metal head | |
| CZ-8112N | 112 | Cross-wheel roller plunger | |
| CZ-8112MN | 112M | Cross-wheel roller plunger with metal head | |
| CZ-8122N | 122 | Vertical-wheel roller plunger | |
| CZ-8122MN | 122M | Vertical-wheel roller plunger with metal head | |
| CZ-8166N | 166 | Plastic rod with coil spring | |
| CZ-8167N | 167 | Coil spring | |
| CZ-8168N | 168 | Metal rod with coil spring | |
| CZ-8169N | 169 | Flexible whisker | |
| CZ-8108HN | 108H | Adjustable lever with rubber roller | Yes |
Join the fixed series code CZ-8, the complete actuator code and the N cable-entry suffix. For example, CZ-8104N selects a plastic roller lever with an M12 cable gland; CZ-8111MN selects the metal-head plunger with the same gland. Keep 111M, 112M, 122M and 108H as complete head codes.
| Parameter | Value and condition |
|---|---|
| Contact form | 1NO+1NC, snap action |
| Cable entry | M12 cable gland |
| Protection | IP65 |
| Operating speed | 5mm/s-0.5m/s |
| Electrical operating frequency | 30 operations/min |
| Initial contact resistance | 25mΩ maximum |
| Insulation resistance | 100MΩ minimum at 500VDC |
| Minimum applicable load | 24VDC, 10mA |
| Rated insulation voltage Ui | 300V |
| Rated impulse withstand voltage Uimp | 4kV |
| Conventional free-air thermal current Ith | 10A |
| Dielectric strength across open contacts of the same polarity | 1000VAC, 50/60Hz, for 1 minute |
| Dielectric strength between live and non-live metal parts | 1500VAC, 50/60Hz, for 1 minute |
| Dielectric strength between each terminal and ground | |
| Vibration | 10-55Hz, 1.5mm double amplitude |
| Shock, mechanical durability | 1000m/s², approximately 100g |
| Shock, malfunction | 300m/s², approximately 30g; coil-spring types excluded |
| Operating temperature | -20°C to +70°C, without icing |
| Relative humidity | Below 95%RH |
| Electrical endurance | Resistive-load condition |
|---|---|
| More than 500,000 cycles | 240VAC, 3A |
| More than 300,000 cycles | 240VAC, 6A |
| More than 500,000 cycles | 250V, 6A |
Apply each endurance figure to its stated load. The thermal-current rating does not replace the voltage-, contact- and load-specific switching ratings.
Current values below are in amperes. Dashes identify unspecified ratings.
| Rated voltage | Noninductive load | Inductive load | ||||||
|---|---|---|---|---|---|---|---|---|
| Resistive | Lamp | Inductive | Motor | |||||
| NC | NO | NC | NO | NC | NO | NC | NO | |
| 125VAC | 6 | 1.5 | 0.7 | 3 | 2 | 1 | ||
| 250VAC | 1 | 0.5 | 1.5 | 0.8 | ||||
| 12VDC | 6 | 3 | 4 | 3 | ||||
| 24VDC | ||||||||
| 125VDC | 0.4 | 0.2 | — | — | — | |||
| 50VDC | ||||||||
| Contact | Maximum surge current |
|---|---|
| NC | 24A |
| NO | 12A |
The table gives steady currents. Inductive loads use an AC power factor of 0.4 or a DC time constant below 7ms. Lamp-load inrush is up to ten times steady current; motor-load inrush is up to six times steady current.
OF and RF denote maximum operating force and minimum release force. PT and MD are maximum pretravel and differential travel unless a tolerance is shown. OT and TT are minimum overtravel and total travel. OP is measured from the datum in the individual drawing. A dash means unspecified.
| Lever model | OF | RF | PT | OT | MD | TT | OP |
|---|---|---|---|---|---|---|---|
| CZ-8104N | 7.5N | 1N | 20° | 75° | 12° | 95° | — |
| CZ-8105N | |||||||
| CZ-8107N | |||||||
| CZ-8108N | |||||||
| CZ-8109N | |||||||
| CZ-8108HN |
| Plunger model | OF | RF | PT | OT | MD | TT | OP |
|---|---|---|---|---|---|---|---|
| CZ-8111N | 9N | 1.5N | 1.8mm | 4mm | 1mm | 5.5mm | 26±0.8mm |
| CZ-8111MN | |||||||
| CZ-8112N | 37±0.8mm | ||||||
| CZ-8112MN | |||||||
| CZ-8122N | |||||||
| CZ-8122MN |
| Flexible actuator model | OF | RF | Angular PT | OT | Angular MD | TT | OP |
|---|---|---|---|---|---|---|---|
| CZ-8166N | 1.5N | — | 15±5° | — | 10±2° | — | — |
| CZ-8167N | |||||||
| CZ-8168N | |||||||
| CZ-8169N |
Apply horizontal movement within the outer third of spring or whisker length, measured from the tip. Avoid root loading, excessive deflection and impact. Rebound can cause additional contact operations.
| Model | Dimensional selection features |
|---|---|
| CZ-8104N / CZ-8105N | Ø18×6.5mm roller; R30.5mm lever; 124.5mm overall height |
| CZ-8107N | Ø2.6×128mm rod; 30-100mm setting range; 112.3-182.3mm overall height |
| CZ-8108N / CZ-8109N | Ø18×6.5mm roller; R29.5-R72.5mm adjustment; 123.5-166.5mm overall height |
| CZ-8111N | Ø8.7mm plunger; 100.6mm overall height |
| CZ-8111MN | Ø8.5mm plunger; metal head; 100.5mm overall height |
| CZ-8112N / CZ-8112MN / CZ-8122N / CZ-8122MN | Ø12.6×3.8mm roller; 112mm overall height |
| CZ-8166N / CZ-8167N | 173mm overall height |
| CZ-8168N | 174.5mm overall height; 102mm actuator length |
| CZ-8169N | 173.5mm overall height; 101mm actuator length |
| CZ-8108HN | Ø50×8mm rubber roller; R40-R80mm adjustment; 150.4mm illustrated height |
The six lever models allow 360° lever positioning and four head orientations at 90° intervals. Retighten screws evenly after adjustment and prevent foreign matter from entering the housing. For CZ-8112N and CZ-8122N roller plungers, keep the cam angle below 30° and follow the attached cam/groove drawing, including its 2.8mm offset. Full model outlines and mounting datums are provided in the catalog attachment.
Remove the cover, feed the cable through the gland and secure suitable terminals to the switch. Refit the gland correctly in its dedicated cover groove. Tighten the three cover screws evenly to 0.49-0.59N·m.
| Cable type | Recommended cable characteristics | ||
|---|---|---|---|
| Cores | Conductor | Overall diameter | |
| Plastic/rubber-insulated flexible cable | 2, 3 or 4 | 0.5-0.75mm² | Round, Ø6-9mm |
| 600V plastic-insulated, plastic-sheathed cable (VVF) | 2 | Ø1mm, Ø1.2mm or Ø1.6mm | |
Keep silicone oil away from the cable/contact system. Secure the cable 50mm from the switch base and maintain a bend radius of at least 45mm to avoid pulling on the gland or damaging the insulation.
| Mounting method | Panel-hole designation | Hole spacing | Fasteners |
|---|---|---|---|
| Front, through panel | 4×Ø4mm | 21±0.3mm × 56±0.3mm | M4 bolts, nuts and washers |
| Front, threaded panel | 4×M4, 0.7mm pitch | 21±0.2mm × 56±0.2mm | M4 bolts and washers |
| Rear | 4×Ø5.5mm | 21±0.3mm × 56±0.3mm | M5 bolts and washers |
Check the individual outline before machining: body holes and panel holes are separately dimensioned. The rear body threads are M5×0.8 with at least 7.5mm thread depth; the fastener length must not exceed panel thickness plus 7mm.
| Figure reference | Fastener | Torque |
|---|---|---|
| 1 | Head mounting screws | 0.19-0.29N·m |
| 2 | Housing cover screws | 0.49-0.59N·m |
| 3 | Lever installation screw | 2.45-2.94N·m |
| 4 | M3 terminal screw | 0.49-0.59N·m |
| 5 | M4 body screw with hexagonal nut | 2.45-2.94N·m |
| 6 | M5 rear body screw with hexagonal nut | 4.90-5.88N·m |
| Designation | Referenced standard | Documentation |
|---|---|---|
| CCC | GB/T 14048.5 | Request applicable model documentation for the intended market |
| TUV | EN 60947-5-1 | |
| CE |
| Utilization category | Operational rating |
|---|---|
| AC-15 | 6A at 250VAC |
| DC-13 | 0.3A at 220VDC |
Loads below 24VDC/10mA require a specifically configured low-load contact version. Do not transfer contacts already used on general loads to low-load duty. Use suitable suppression and contact-protection circuits for contact bounce and impulse currents.
These switches are intended for general industrial use. Personnel-protection duties, nuclear or utility infrastructure, outdoor or chemically aggressive environments, strong electromagnetic disturbance, fire or explosion hazards, military equipment and aerospace require a separately specified design and written application approval.
