OMRON Basic Switches - A

Model Numbers | Basic Switches - A

Terminal		Solder terminal	Screw terminal (-B)
Actuator		Model	Model
Pin plunger		A-20G	A-20G-B
Short spring plunger		A-20GD	A-20GD-B
Panel mount plunger		A-20GQ	A-20GQ-B
Panel mount roller plunger		A-20GQ22	A-20GQ22-B
Panel mount cross roller plunger		---	A-20GQ21-B
Short hinge lever		A-20GV21	A-20GV21-B
Hinge lever		A-20GV	A-20GV-B
Short hinge roller lever		A-20GV22	A-20GV22-B
Hinge roller lever		A-20GV2	A-20GV2-B

Accessories (Order Separately)

Terminal Covers (Sold Separately)

The Terminal Covers can be attached to Z, A, X, and DZ Switches.
The Terminal Cover is secured with mounting screws and protects the casing and terminal wires from dust, vibration, or fingers, thus preventing terminal short-circuiting, ground faults, wire disconnection or improper connection, and electric shock accidents.
Terminal Covers made of phenol resin have five or six thin wall sections. These sections can be torn open for providing holes for lead cables at desired points.
A terminal cover can’t be used in the case of using an actuator sold separately.

Note: Use a Terminal Cover for screw terminals fir DZ-series Switches w

Application		Soldering terminal use	Screw terminal use	Remarks
Material	Mounting direction	Model
Phenol resin	Side mounting	AP-A	AP-B	---
Metal press mold	Side mounting	AP1-A	AP1-B	Used for AP-A and AP-B
Vinyl chloride	Side mounting	AP-Z		---

ith soldering terminals.

Separator (Sold Separately)

Use a Separator when it is difficult to provide a sufficient insulation distance or when using the Switch near metal parts or copper wires.

Model
SEPARATOR FOR Z

Specifications | Basic Switches - A

Ratings

Rated voltage (V)	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 500 VAC	20 20 15		7.5 7.5 4		20 20 10		12.5 8.3 2
8 VDC 14 VDC 30 VDC 125 VDC 250 VDC	20 20 6 0.5 0.25		3 3 3 0.5 0.25	1.5 1.5 1.5 0.5 0.25	20 15 5 0.05 0.03		12.5 12.5 5 0.05 0.03

Note:Note:
1. The above values are for 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 ratings values apply under the following test conditions:
(1) Ambient temperature: 20±2°C
(2) Ambient humidity: 65±5%RH
(3) Operating frequency: 20 operations/min

Characteristics

Operating speed		0.01 mm to 1m/s * 1
Operating frequency	Mechanical	240 operations/min
	Electrical	20 operations/min
Insulation resistance		100 MΩ min. (at 500 VDC)
Contact resistance		15 mΩ max. (initial value)
Dielectric strength		1,000 VAC, 50/60 Hz for 1 min between terminals of the same polarity 2,000 VAC, 50/60 Hz for 1 min between the current-carrying metal parts and the ground, and between each terminal and non-current- carrying metal parts
Vibration resistance	Malfunction	10 to 55 Hz, 1.5-mm double amplitude * 2
Shock resistance	Destruction	1,000 m/s2 max.
	Malfunction	300 m/2 max. * 1 * 2
Durability	Mechanical	1,000,000 operations min.
	Electrical	500,000 operations min.
Degree of protection		IP00
Degree of protection against electric shock		Class I
Proof tracking index (PTI)		175
Ambient operating temperature		-25 ° C to 80 ° C (with no icing)
Ambient operating humidity		35% to 85%RH
Weight		Approx. 22 to 58 g

Note:*1. The value is for the pin plunger. (Contact your OMRON representative for other models.)
*2. Malfunction: 1 ms max.

Contact Specification

Contacts	Shape	Rivet
	Material	Silver alloy
	Gap (standard value)	0.5 mm
Inrush current	NC	75 A max.
	NO	75 A max.

Dimensions | Basic Switches - A

Terminals

Screw Terminals (-B)

Solder Terminal (-A)

("-A" is not included in the model numbers.)

Note: 1. Appropriate terminal screw tightening torque: 0.78 to 1.18 Nm.
2. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

Mounting Holes

Use M4 mounting screws with plane washers or spring washers to securely mount the Switch. Tighten the screws to a torque of 1.18 to 1.47 Nm.

The Switch can be panel mounted, provided that the hexagonal nut of the actuator is tightened to a torque of 2.94 to 4.9 Nm.

The models, illustrations, and graphics are for screw-terminal models. (The dimensions for models that are omitted here are the same as for pin-plunger models.)

Pin Plunger
A-20G-B

Short Spring Plunger
A-20GD-B

Panel Mount Plunger
A-20GQ-B

Note: Do not use both M12 mounting screw and mounting holes at the same time.

Panel Mount Roller Plunger
A-20GQ22-B

Note: Do not use both M12 mounting screw and mounting holes at the same time.

Panel Mount Cross Roller Plunger
A-20GQ21-B

Note: Do not use both M12 mounting screw and mounting holes at the same time.

Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

Short Hinge Lever
A-20GV21-B

Hinge Lever
A-20GV-B

Short Hinge Roller Lever
A-20GV22-B

Hinge Roller Lever
A-20GV2-B

Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

Terminal Covers

AP-A

Soldering Terminal Use (Phenol Resin)

Note: The Cover has five thin, easy-to-separate portions for easy lead wire connections.

AP-B

Screw Terminal Use (Phenol Resin)

Note: The Cover has six thin, easy-to-separate portions for easy lead wire connections.

AP1-A

Soldering Terminal Use (Metal Press Mold)

Note: The Cover has five holes for easy lead wire connections.

AP1-B

Screw Terminal Use (Metal Press Mold)

Note: The Cover has six holes for easy lead wire connections.

AP-Z

Soldering or Screw Terminal Use (Vinyl Chloride)

Note: Each dimension has a tolerance of ±0.4 mm unless otherwise specified. (±0.8 mm for the AP-Z)

Separator

SEPARATOR FOR Z

Note: 1. Each dimension has a tolerance of ±0.4 mm unless otherwise specified.
2. The material is EAVTC (Epoxide Alkyd Varnished Tetron Cloth) and its heat-resisting temperature is 130°C.

Features | Basic Switches - A

Same shape as OMRON Z Basic Switches except in pin plunger position, yet endures inrush currents as large as 75 A

Properties | Basic Switches - A

---

Basic Switches	A
Rated voltage	125 - 500 VAC
	8 - 250 VDC
Service life	10,000,000 ครั้ง
Contact resistance	0.5 mm (default)
Insuraltion resistance	100 MΩ min (ที่ 500 VDC)
Weight (g)	22 - 58