A-20G Datasheet, PDF (3/8 Pages) Omron Electronics LLC – Snap Action Switch

Engineering Data
■ Mechanical Durability (A-20G)
1,000
700
500
300
Ambient temperature: 20±2°C
Ambient humidity: 65±5%RH
Without load
Operating frequency:
240 operations/min
100
70
50
30
■ Electrical Durability (A-20G)
1,000
700
500
300
100
70
50
250 VAC,
cosφ = 1
Ambient temperature: 20±2°C
Ambient humidity: 65±5%RH
Operating frequency:
20 operations/min
125 VAC, cosφ = 1
125 VAC,
cosφ = 0.4
250 VAC, cosφ = 0.4
30
10
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Overtravel (mm)
10
0
5
10
15
20
25
Switching current (A)
■ Structure
Contact Form (SPDT)
COM
NC
NO
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)
Solder Terminal (Blank)
9.2
20
20
COM
NO
NC
17.45±0.2
1
3
2
Three, M4 × 5.5
49.2
Terminal screws
(with toothed washer)
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.
Two, 4.2 dia. mounting
holes or M4
6.4
25.4±0.1 11.9
3
1 NO
COM
NC
2
49.2
17.45±0.2
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.
Panel Mount Plunger
Panel Mount Roller Plunger
25.4±0.1
12.5
+
0.2
0
dia.
12.5
+
0.2
0
dia.
5⁺
0.2
0
13
+
0.2
0
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)
from the panel mount plunger.
Accessories (Terminal Covers, and Separators): Refer to ‘Z/A/X/DZ Common Accessories’ datasheet
Snap Action Switch A
21