Schneider Electric S520 Series, S530 Series, S540 Series, SK-520 Series, SK-530 Series Data Sheet
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S520, S530, S540 Series
SK-520, SK-530, SK-540 Series
Two-, Three-, & Four-Position
Selector Switches
General Instructions
APPLICATION
These switches are manually operated devices adaptable to a wide variety of applications in pneumatic control systems. They are normally used to perform diverting or supply and exhaust functions to operate final control components or index relays in multiple switching systems.
The S520/SK-520 ia a four-branch switch. The S521/SK-521 is a five-branch switch that provides one blocked port in each knob position.
The S530/SK-530 is a four-branch switch which can be used to supply a signal to any one of three devices or supply any one of three signals to a device. Its unused ports are blocked. The S531/SK-531 is identical except for its unused ports being exhausted to atmosphere.
The S-540/SK-540 and S541/SK-541 are five-branch switches which follow the same operating pattern as the S530/SK-530 Series. However, they can supply a signal to any one of four devices or vice-versa. Unused ports are blocked in the S540/SK-540 and exhausted in the S541/SK-541.
Various dials are available for each model and for specific switch applications.
SPECIFICATIONS
Construction:
Case, Glass - filled nylon.
Dials Plates, Anodized aluminum. Knob, Black sunburst plastic with pointer.
Environment:
Maximum Ambient Temperature, 140°F (60°C)
Supply Air Pressure: Clean, dry, oil free air required (ref. EN-123).
Maximum, 30 psig.
Connections: Barbed fittings for 1/4" O.D. polyethylene or 5/32" I.D. polyurethane tubing.
Air Consumption: None.
Air Flow Capacity: 1152 scim. Adjustments: Knob.
Mounting: Designed for use on MCS-S-P manifold socket. These devices can also be mounted by using the appropriate mounting bracket (See Table 2 Mounting Bracket Accessories) or PKS-1133 kit.
Dimensions: See Figure 1.
ACCESSORIES PROVIDED WITH SK-5XX
PKG-1133 |
Plastic mounting strap & adhesive base |
ACCESSORIES |
|
K51X |
Mounting bracket (See Table 2) |
MCS-S-P |
Manifold Socket |
50-XX |
Dial Plates (See Table 4) |
S5XX/SK-5XX shown without dial plate
Table-1 Specifications.
Model |
Description |
|
Number |
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|
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|
|
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S520 |
2-Position - 4 branch |
|
SK-520 |
||
|
||
|
|
|
S521 |
2-Position - 5 branch |
|
SK-521 |
(unused ports blocked) |
|
|
|
|
S530 |
3-Position - 4 branch |
|
SK-530 |
(unused ports blocked) |
|
|
|
|
S531 |
3-Position - 4 branch |
|
SK-531 |
(unused ports exhausted) |
|
|
|
|
S540 |
4-Position - 5 branch |
|
SK-540 |
(unused ports blocked) |
|
|
|
|
S541 |
4-Position - 5 branch |
|
SK-541 |
(unused ports exhausted) |
|
|
|
For Dial Plate Specifications, see page 2.
Table-2 Mounting Bracket Accessories.
Model |
Description |
|
Number |
||
|
||
|
|
|
K511 |
Single switch bracket |
|
|
|
|
K512 |
One switch & one gauge per bracket |
|
|
|
|
K514 |
Two switches & two gauges per bracket |
|
|
|
Table-3 Replacement Parts.
Model |
Description |
|
Number |
||
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||
|
|
|
K550 |
Replacement Knob |
|
|
|
|
K551 |
Replacement Locknut |
|
|
|
Printed in U.S.A. 9-08 |
♥ Copyright 2008 TAC All Rights Reserved. |
F-23916-3 |
Table-4 Dial Plates for use with S520/SK-520 and S521/SK-521.
Model Number |
|
|
Dial Markings |
|
|
|
|
|
|
|
|
50-06 |
|
|
|
Blank |
|
|
|
|
|
|
|
50-09 |
Occup. |
Unoccup. |
|
— |
— |
|
|
|
|
|
|
50-11 |
Min. |
Max. |
|
— |
— |
|
|
|
|
|
|
50-13 |
Winter |
Summer |
|
— |
— |
|
|
|
|
|
|
50-14 |
Manual |
Auto |
|
— |
— |
|
|
|
|
|
|
50-15 |
Auto |
Off |
|
— |
— |
|
|
|
|
|
|
50-16 |
On |
Auto |
|
— |
— |
|
|
|
|
|
|
50-17 |
On |
Off |
|
— |
— |
|
|
|
|
|
|
50-18 |
Closed |
Auto |
|
— |
— |
|
|
|
|
|
|
50-19 |
Open |
Auto |
|
— |
— |
|
|
|
|
|
|
50-20 |
Open |
Closed |
|
— |
— |
|
|
|
|
|
|
50-23 |
Day |
Night |
|
— |
— |
|
|
|
|
|
|
50-24 |
Heat |
Cool |
|
— |
— |
|
|
|
|
|
|
50-52 |
1 |
2 |
|
— |
— |
|
|
|
|
|
|
Table-5 Dial Plates for use with S530/SK-530 and S531/SK-531.
Model Number |
|
|
Dial Markings |
|
|
|
|
|
|
|
|
50-06 |
|
|
|
Blank |
|
|
|
|
|
|
|
50-32 |
1 |
2 |
|
3 |
— |
|
|
|
|
|
|
50-37 |
Open |
Auto |
|
Closed |
— |
|
|
|
|
|
|
50-38 |
Heat |
Auto |
|
Cool |
— |
|
|
|
|
|
|
50-39 |
Day |
Auto |
|
Night |
— |
|
|
|
|
|
|
50-45 |
Winter |
Auto |
|
Summer |
— |
|
|
|
|
|
|
50-46 |
Occup. |
Auto |
|
Unoccup. |
— |
|
|
|
|
|
|
50-47 |
On |
Auto |
|
Off |
— |
|
|
|
|
|
|
Table-6 Dial Plates for use with S540/SK-540 and S541/SK-541.
Model Number |
|
|
Dial Markings |
|
|
|
|
|
|
|
|
50-06 |
|
|
|
Blank |
|
|
|
|
|
|
|
50-48 |
2 |
3 |
|
4 |
1 |
|
|
|
|
|
|
50-49 |
Heat |
Vent |
|
Cool |
Auto |
|
|
|
|
|
|
Figure-1 Internal Port Connections.
2 |
♥ Copyright 2008 TAC All Rights Reserved. |
F-23916-3 |
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