A-20G Omron, A-20G Datasheet - Page 3

• Manufacturer Part Number: A-20G
• Description: BASIC SWITCH
• Manufacturer: Omron
• Series: Ar

Specifications of A-20G

• Circuit: SPDT
• Switch Function: On-Mom
• Contact Rating @ Voltage: 20A @ 125VAC
• Actuator Type: Round (Pin Plunger)
• Mounting Type: Chassis Mount
• Termination Style: Solder Lug
• Operating Force: 625gf
• Actuator: Plunger, Pin
• Contact Form: SPDT
• Contact Rating: 20 Amps at 250 Volts
• Mounting: Panel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: A-20G; A20G; SW1092

Engineering Data
■ Mechanical Durability
■ Structure
Contact Form (SPDT)
Dimensions
Note: Unless otherwise specified, all units are in millimeters and a tolerance of ± 0.4 mm applies to all dimensions.
■ Terminals
Screw Terminals (-B)
Note: Appropriate terminal screw tightening torque: 0.78 to 1.18 N·m.
■ Mounting Holes
All switches can be mounted using 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 N·m.
Note: Mount using either the side mounting holes or the panel mount plunger, not both. If using the side mounting holes, then remove the hexagonal nut(s)
1,000
700
500
300
100
COM
70
50
30
10
from the panel mount plunger.
0
9.2
0.1
Accessories (Terminal Covers, and Separators): Refer to ‘Z/A/X/DZ Common Accessories’ datasheet
COM
1
0.2
20
0.3
49.2
NO
3
Ambient temperature: 20 ± 2 ° C
Ambient humidity: 65 ± 5%RH
Without load
Operating frequency:
NC
NO
0.4
20
Two, 4.2 dia. mounting
holes or M4
25.4±0.1
NC
2
0.5
240 operations/min
Overtravel (mm)
0.6
Three, M4 × 5.5
Terminal screws
(with toothed washer)
17.45±0.2
0.7
0.8
(A-20G)
■ Electrical Durability
Solder Terminal (Blank)
Versions with panel mount plungers can be panel mounted via the
plunger, provided that the hexagonal nut of the actuator is tightened
to a torque of 2.94 to 4.9 N·m.
1,000
700
500
300
100
70
50
30
10
Panel Mount Plunger
0
6.4
250 VAC,
cosφ = 1
5
250 VAC, cosφ = 0.4
12.5
+ 0.2
0
10
25.4±0.1
dia.
1
2
3
49.2
Snap Action Switch
NO
COM
NC
Ambient temperature: 20 ± 2 ° C
Ambient humidity: 65 ± 5%RH
Operating frequency:
125 VAC, cosφ = 1
Switching current (A)
15
11.9
20 operations/min
125 VAC,
cosφ = 0.4
20
Panel Mount Roller Plunger
17.45±0.2
25
(A-20G)
13
+ 0.2
0
12.5
A
+ 0.2
0
5
+ 0.2
dia.
0
21