Omron TZ DATASHEET

High-temperature Basic Switch

TZ

Stable Operation at an Ambient Temperature
of 400°C

• Incorporates a ceramic insulator, cobalt-alloy spring, and spe­cial-alloy contact, thus ensuring high contact reliability at high
ambient temperature.

• Smoothly operates at an ambient temperature of 400°C.

Model Number Structure

■ Model Number Legend

TZ-1G@

1 2 3

1. Rating

1: 1 A, 250 VAC

2. Contact Gap

G: 0.5 mm

3. Actuator

None: Pin plunger
V: Hinge lever
V2: Hinge roller lever
V22: Short hinge roller lever

Ordering Information

■ List of Model

Actuator Model

Pin plunger

Hinge lever

Short hinge roller lever

TZ-1G
TZ-1GV

TZ-1GV22

Limit

Switches

Hinge roller lever

TZ-1GV2

High-temperature Basic Switch TZ F-145

Specifications

■ Ratings

Rated voltage Non-inductive load (A) Inductive load (A)

Resistive load Lamp load Inductive load Motor load

NC NO NC NO NC NO NC NO

125 VAC
250 VAC

8 VDC
14 VDC
30 VDC
125 VDC

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.

■ Characteristics

Operating speed 0.05 mm to 1 m/s (see note 1)
Operating frequency Mechanical: 60 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

Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude (see note 2)
Shock resistance

Durability Mechanical: 100,000 operations min.

Degree of protection IP00
Electric shock protection Class I
Ambient temperature Operating: −65°C to 400°C (with no icing)
Ambient humidity Operating: 35% to 85% max.
Weight Approx. 45 to 54 g

Note: 1. This operating speed applies to switches with pin-type pushbuttons.

2. This refers to a malfunction period of 1 ms max.

1
1

1
1
1

0.4

1. Ambient temperature: 20±2 °C

2. Ambient humidity: 65±5%

3. Switching frequency: 20 times/min

Electrical: 20 operations/min

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

Destruction: 500 m/s
Malfunction: 300 m/s

Electrical: 50,000 operations min.

0.9

0.45

0.9

0.9

0.9

0.05

0.45

0.3

0.45

0.45

0.45

0.05

2

{50G} max.

2

{30G} max. (see note 2)

1
1

1
1
1

0.4

1.5

0.45

1.5

1.5

1.5

0.05

0.75

0.3

1.5

1.5

1.5

0.05

■ Contact Specifications

Item

Contact Specification Cross bar

Material Platinum alloy
Gap (standard value) 0.5 mm

Inrush current NC 9 A max.

NO 4.5 A max.

F-146 High-temperature Basic Switch TZ