| Part Number: | TZ-8 | 104 | N |
|---|---|---|---|
| Explanation: |
Series TZ-8 - Vertical limit switch design series |
Actuator 104 - Plastic roller lever |
Cable entry N - M12 cable-gland tail sleeve |
TZ-8N switches detect mechanical position through a choice of roller levers, adjustable rods, plungers and flexible spring actuators. A metal housing and reinforced plastic cover enclose snap-action 1NO+1NC contacts. The N suffix specifies an M12 cable-gland tail sleeve for cable entry; select the actuator and available movement to suit the machine's approach direction.
Terminals 13-14 form the normally open contact and 11-12 form the normally closed contact. NC direct opening is specified for the six lever models marked below. Select a plunger or spring model according to its own force and travel limits.
| Model | Actuator code | Actuator construction | NC direct opening |
|---|---|---|---|
| TZ-8104N | 104 | Plastic roller lever | Yes |
| TZ-8105N | 105 | Metal roller lever | |
| TZ-8107N | 107 | Adjustable rod lever | |
| TZ-8108N | 108 | Adjustable lever with plastic roller | |
| TZ-8109N | 109 | Adjustable lever with metal roller | |
| TZ-8111N | 111 | Plunger | Not specified |
| TZ-8112N | 112 | Cross-wheel roller plunger | |
| TZ-8122N | 122 | Vertical-wheel roller plunger | |
| TZ-8166N | 166 | Plastic rod with coil spring | |
| TZ-8167N | 167 | Coil spring | |
| TZ-8168N | 168 | Metal rod with coil spring | |
| TZ-8169N | 169 | Flexible whisker | |
| TZ-8108HN | 108H | Adjustable lever with rubber roller | Yes |
Build the model from the fixed identifier TZ-8, the complete actuator code and the N cable-entry suffix. For example, TZ-8104N selects the plastic roller lever and M12 cable gland. The H in 108H belongs to the rubber-roller actuator code.
| Parameter | Specification |
|---|---|
| Contacts | 1NO+1NC, snap action |
| Cable entry | M12 cable-gland tail sleeve |
| 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 | 380V |
| Rated impulse withstand voltage Uimp | 2.5kV |
| Conventional free-air thermal current Ith | 10A |
| Dielectric strength between 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 resistance | 10-55Hz, 1.5mm double amplitude |
| Shock resistance, mechanical durability | 1000m/s², approximately 100g |
| Shock resistance, malfunction | 300m/s², approximately 30g; coil-spring types excluded |
| Operating temperature | -20°C to +70°C, without icing |
| Relative humidity | Below 95%RH |
| Protection rating | IP65 |
| Electrical durability | Load condition |
|---|---|
| More than 500,000 cycles | 240VAC, 3A, resistive |
| More than 300,000 cycles | 240VAC, 6A, resistive |
| More than 500,000 cycles | 250V, 6A, resistive |
Apply each endurance figure only to its stated load condition. The 10A thermal-current value is distinct from the permissible switching current for a particular load.
Current values below are in amperes. NC and NO columns identify the contact to which each value applies; a dash indicates no specified rating.
| 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 current. Inductive ratings use an AC power factor of 0.4 or a DC time constant below 7ms. Lamp loads assume inrush up to ten times steady current, and motor loads up to six times steady current.
OF is maximum operating force and RF is minimum release force. PT is maximum pretravel unless stated with a tolerance; OT is minimum overtravel; MD is maximum differential travel unless stated with a tolerance; TT is minimum total travel. OP is the operating position shown in the model drawing. Dashes indicate unspecified values.
| Lever model | OF | RF | PT | OT | MD | TT | OP |
|---|---|---|---|---|---|---|---|
| TZ-8104N | 7.5N | 1N | 20° | 75° | 12° | 95° | — |
| TZ-8105N | |||||||
| TZ-8107N | |||||||
| TZ-8108N | |||||||
| TZ-8109N | |||||||
| TZ-8108HN |
| Plunger model | OF | RF | PT | OT | MD | TT | OP |
|---|---|---|---|---|---|---|---|
| TZ-8111N | 9N | 1N | 1.8mm | 4mm | 1mm | 5.5mm | 26±0.8mm |
| TZ-8112N | 1.5N | 37±0.8mm | |||||
| TZ-8122N |
| Flexible actuator model | OF | RF | Angular PT | Linear PT | OT | Angular MD | TT | OP |
|---|---|---|---|---|---|---|---|---|
| TZ-8166N | 1.5N | — | 15±5° | — | — | — | — | — |
| TZ-8167N | ||||||||
| TZ-8168N | — | 30mm | ||||||
| TZ-8169N | 15±5° | — | 10±2° |
Contact the flexible actuator within the outer third of its length, measured from the tip. Keep angular travel values separate from the linear pretravel specified for the metal-rod spring model.
The attached catalog provides separate outlines for each N-suffix model. Standard mounting uses four Ø4.2mm holes with 21±0.2mm horizontal and 56±0.2mm vertical spacing. Threaded holes are M5×0.8 with at least 7.5mm thread depth. Allow space for the M12 gland and cable below the body.
| Model | Dimensional selection details |
|---|---|
| TZ-8104N / TZ-8105N | Ø18×6.5mm roller; 40mm head depth; 126.5mm illustrated overall height |
| TZ-8107N | Ø2.6×128mm rod; 30-100mm setting range; 41mm head depth |
| TZ-8108N / TZ-8109N | Ø18×6.5mm roller; R29.5-R72.5mm adjustment; 123.5-166.5mm overall height |
| TZ-8111N | Ø8.7mm metal plunger; 100.6mm overall height |
| TZ-8112N / TZ-8122N | Ø12.6×3.8mm metal roller; 112mm overall height; cross-wheel and vertical-wheel orientations respectively |
| TZ-8166N / TZ-8167N | 173mm overall height; plastic rod and exposed coil respectively |
| TZ-8168N / TZ-8169N | 175mm overall height; metal rod and flexible whisker respectively |
| TZ-8108HN | Ø50×8mm rubber roller; R40-R80mm adjustment; 150.4mm illustrated height; 28.2mm base width |
| Designation | Referenced standard | Documentation |
|---|---|---|
| CCC | GB/T 14048.5 | Request applicable model documentation for the destination market |
| TUV | EN 60947-5-1 | |
| CE |
| Utilization category | Operational rating |
|---|---|
| AC-15 | 6A at 250VAC |
| DC-13 | 0.3A at 220VDC |
Use these switches within their industrial operating limits. Personnel-protection systems, nuclear or utility infrastructure, outdoor or chemically aggressive installations, strong electromagnetic disturbance, fire or explosion hazards, military equipment and aerospace applications require a separately specified design and written application approval.
