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High-temperature Basic Switch
TZ
CSM_TZ_DS_E_2_2
Stable Operation at an Ambient
Temperature of 400°C
• Incorporates a ceramic insulator, cobalt-alloy spring, and specialalloy contact, thus ensuring high contact reliability at high
ambient temperature.
• Smoothly operates at an ambient temperature of 400°C.
Be sure to read Safety Precautions on page 3 and Safety Precautions for
All Basic Switches.
Ordering Information
Specifications
Actuator
Ratings
Model
Pin plunger
Non-inductive load (A)
TZ-1G
Hinge lever
Rated
voltage
(V)
NC
TZ-1GV22
Hinge roller lever
TZ-1GV2
Lamp load
NO
NC
NO
Inductive load (A)
Inductive
load
NC
NO
Motor load
NC
NO
125 VAC
250 VAC
1
1
0.9
0.45
0.45
0.3
1
1
1.5
0.45
0.75
0.3
8 VDC
14 VDC
30 VDC
125 VDC
1
1
1
0.4
0.9
0.9
0.9
0.05
0.45
0.45
0.45
0.05
1
1
1
0.4
1.5
1.5
1.5
0.05
1.5
1.5
1.5
0.05
TZ-1GV
Short hinge roller lever
Resistive
load
Note: 1. The above current ratings are the values of the steady-state current.
2. Inductive load has a power factor of 0.4 min. (AC) and a time constant
of 7 ms max. (DC).
3. Lamp load has an inrush current of 10 times the steady-state current.
4. Motor load has an inrush current of 6 times the steady-state current.
5. The above ratings are tested under the following conditions.
Ambient temperature: 20±2°C
Ambient humidity: 65±5%RH
Switching frequency: 20 times/min
Note: The levers and rollers are made of stainless steel.
Structure
Structure/Contact Form (SPDT)
Ceramic
pushbutton
Fixed contact b
Movable spring
Bracket
Characteristics
Operating speed
COM
NC
NO
Operating
frequency
Mechanical
Electrical
0.05 mm to 1 m/s *1
60 operations/min
20 operations/min
Insulation resistance
100 MΩ min. (at 500 VDC)
Contact resistance
100 mΩ max. (initial value)
Dielectric strength
1,000 VAC, 50/60 Hz for 1 min between
terminals of same polarity
1,500 VAC, 50/60 Hz for 1 min between
current-carrying metal parts and ground
and between each terminal and non-current-carrying metal parts
Vibration
resistance
Malfunction
10 to 55 Hz, 1.5-mm double amplitude *2
Destruction
500 m/s2 max.
Malfunction
300 m/s2 max. *1 *2
Mechanical
100,000 operations min.
Ceramic terminal block
Movable contact
Fixed contact a
Shock
resistance
Durability
Electrical
50,000 operations min.
Degree of protection
IP00
Electric shock protection
Class I
Ambient operating temperature
−65°C to 400°C (with no icing)
Ambient operating humidity
35% to 85%RH
Weight
Approx. 45 to 54 g
*1. This operating speed applies to switches with pin-type pushbuttons.
*2. This refers to a malfunction period of 1 ms max.
Contact Specifications
Specification
Contact
Material
Gap (standard value)
Inrush cur- NC
rent
NO
Rivet
Platinum alloy
0.5 mm
9 A max.
4.5 A max.
1
TZ
Dimensions and Operating Characteristics
Pin Plunger
TZ-1G
(Unit: mm)
23.3±0.25
8.2 dia.
*
3 dia.
PT
Two, 3.56-dia. holes
OP
15.2 13.2
6.1
16.8 14.1
18.4
18.4
25.4±0.1
49.2
Hinge Lever
TZ-1GV
6.2
8.6
17.4
Three, M3.5
11.9
Operating force
OF max.
Release force
RF min.
Pretravel
PT max.
Over travel
OT min.
Movement Differential MD max.
Operating Position OP
4.9 N
1.12 N
0.4 mm
0.13 mm
0.15 mm
15.9±0.6 mm
* Ceramic pushbutton
*
7.5
23.3±0.25
R
PT
63.5
OP
13.2
8.6
16.8 14.1
18.4 18.4
25.4±0.1
49.2
Short Hinge Roller Lever
TZ-1GV22
17.4
Three, M3.5
11.9
OP
0.98 N
0.14 N
3.5 mm
4.6 mm
1.3 mm
18±1.2 mm
* Stainless-steel lever
23.3±0.25
9.5 dia. 4 *1
PT
26
.2
R
7.5
Two, 3.56-dia. holes
6.2
OF max.
RF min.
PT max.
OT min.
MD max.
*2
OP
13.2
8.6
16.8 14.1
Two, 3.56-dia. holes
18.4
18.4
25.4±0.1
49.2
6.2
17.4
Three, M3.5
11.9
OF max.
RF min.
PT max.
OT min.
MD max.
OP
2.35 N
0.34 N
1.5 mm
1.9 mm
0.6 mm
28.6±1.2 mm
*1. Stainless-steel roller
*2. Stainless-steel lever
Hinge Roller Lever
TZ-1GV2
7.5
*2
23.3±0.25
PT
9.5 dia. 4 *1
R
8.4
4
OP
13.2
8.6
16.8 14.1
Two, 3.56-dia. holes
18.4 18.4
25.4±0.1
49.2
6.2
17.4
Three, M3.5
11.9
OF max.
RF min.
PT max.
OT min.
MD max.
OP
1.27 N
0.2 N
2.6 mm
3.5 mm
1 mm
28.6±1.2 mm
*1. Stainless-steel roller
*2. Stainless-steel lever
Note: Each dimension has a tolerance of ±0.4 mm unless otherwise specified.
2
TZ
Safety Precautions
Refer to Safety Precautions for All Basic Switches.
Precautions for Safe Use
Handling
The Switch has a ceramic casing. Do not drop the Switch from a
height of 30 cm or more. Doing so will break the casing.
• Switches are generally not constructed with resistance against
water. Use a protective cover to prevent direct spraying if the switch
is used in locations subject to splashing or spurting oil or water, dust
adhering.
Incorrect
Correct
Mounting
• Be sure to turn OFF the power supply to the Switch before
mounting, dismounting, wiring, or working on the Switch for
maintenance.
• Mount the switch with M3.5 stainless-steel screws with plane
washer and spring washers securely.
Use M3.5 stainless-steel mounting screws with plane washers or
spring washers to securely mount the Switch. Tighten the screws to
a torque of 0.69 to 0.98 N·m.
Terminal box
Terminal box
• Install the switch in a location that is not directly subject to debris
and dust from cutting. The actuator and the switch body must be
protected from accumulated cutting debris and dirt.
Incorrect
Correct
Mounting Holes
Two, 3.56-dia. mounting holes or
M3.5 screw holes
25.4±0.1
• Connect nickel-plated solderless terminals to the TZ. Each terminal
must be secured on the TZ with M3.5 nut.
• Make sure that the ceramic case is free of metal powder or other
impurities.
Operation
• Do not modify the Actuator and change the operating position.
• Make sure that the switching speed is not extremely slow or do not
use the Switch so that the pushbutton will be set to a position
between the FP and OP.
• Make sure that the pin-type pushbutton and the switching stroke
are on the same vertical line.
• Make sure that the switching frequency or speed is within the
specified range.
1. If the switching speed is extremely slow, the contact may not be
switched smoothly, which may result in a contact failure or
contact welding.
2. If the switching speed is extremely fast, switching shock may
damage the Switch soon. If the switching frequency is too high,
the contact may not catch up with the speed.
The rated permissible switching speed and frequency indicate the
switching reliability of the Switch.
The life of a Switch is determined at the specified switching speed.
The life varies with the switching speed and frequency even when
they are within the permissible ranges. In order to determine the life
of a Switch model to be applied to a particular use, it is best to
conduct an appropriate durability test on some samples of the
model under actual conditions.
• Make sure that the actuator travel does not exceed the permissible
OT position. The operating stroke must be set to 70% to 100% of
the rated OT.
Precautions for Correct Use
Mounting Location
• Do not use the switch alone in atmospheres such as flammable or
explosive gases. Arcing and heat generation associated with
switching may cause fires or explosions.
• Do not use the switch in locations subject to hot water (greater than
60°C) or in water vapor.
• Do not use the switch outside the specified temperature and
atmospheric conditions.
The permissible ambient temperature depends on the model.
(Refer to the specifications in this catalog.) Sudden thermal
changes may cause thermal shock to distort the switch and result
in faults.
Incorrect
Correct
Separate the
installation location from
heat sources.
• Mount a cover if the switch is to be installed in a location where
worker inattention could result in incorrect operation or accidents.
Incorrect
Correct
(preventing malfunctions)
• Subjecting the switch to continuous vibration or shock may result in
contact failure or faulty operation due to abrasion powder and in
reduced durability. Excessive vibration or shock will cause the
contacts to operate malfunction or become damaged. Mount the
switch in a location that is not subject to vibration or shock and in a
direction that does not subject the switch to resonance.
• If silver contacts are used with relatively low frequency for a long
time or are used with microloads, the sulfide coating produced on
the contact surface will not be broken down and contact faults will
result. Use a microload switch that uses gold contacts.
• Do not use the switch in atmospheres with high humidity or heat or
in harmful gases, such as sulfide gas (H2S, SO2), ammonia gas
(NH3), nitric acid gas (HNO3), or chlorine gas (Cl2). Doing so may
impair functionality, such as with damage due to contacting faults
or corrosion.
• The switch includes contacts. If the switch is used in an atmosphere
with silicon gas, arc energy may cause silicon oxide (SiO2) to
accumulate on the contacts and result in contact failure. If there is
silicon oil, silicon filling, silicon wiring, or other silicon products in the
vicinity of the switch, use a contact protection circuit to limit arcing
and remove the source of the silicon gas.
3
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
 Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
 Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
 Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2012.8
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2012 All Right Reserved.
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