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Ratings and Specifications for Limit Switches
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Heavy Duty Limit Switches |
Type of
Actuation |
Roller
Lever |
Cylindrical Roller Lever |
Pull
Lever |
Pull Lever
(Crane Drum)
Over-Winding
Protection |
Fork Lever |
Pull Lever (One Direction Pull) |
Horizontal
Mounting |
Vertical Mounting |
Type *1 |
PSKU-#R25A_ |
PSKU-#
R25AB |
PSKU-#R25AV |
PSKU-#R25AE |
PSKU-#R25AO |
PIKU-#R25A_ |
PIKU-#R25AE |
Switch Action |
Spring Return |
Maintained |
Contact
Arrangement
Available *2
|
1NO (2-way
operations)
1NC *3 (1-way operation
2NO (2 way operations)
1NO1NC *3 (1-way operation
2NC *3 (1-way operation)
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1NO, 1NC, 2NO, 1NO1NC, 2NC (1-way operation) |
1NO
2NO
1NO1NC *4
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1NO, 1NC,
2NO, 1NO1NC, 2NC, (1-way operation) |
Common
Specifications
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Enclosure:
Floodtight type (IP56) *5
Rated insulation voltage: 250V
Rated continuous current: 3A
Operational power ratings: 240VAC 0.5A, 115VDC 0.3A,
48VDC 0.5A
Withstand voltage: 500VAC for 1 minute across contact, 1500VAC
for 1 minute across contact to ground
Operating temperature: -10 to +80°C
Storage Temperature: -25 to +90°C
Maximum recommended speed of actuation: 100m/min *6
Operating frequency: 3600 times/hour
Mechanical life: 5,000,000 operations or greater
Electrical life: 240VAC 5A making 0.5A breaking, 1,000,000
operations or greater (inductive load),
115VDC 50mA, 5,000,000 operations or greater (inductive load)
Lead-in method: PF 1/2 (13 diameter hole) |
Notes:
*1 Types with # such as PSKU-#R25A can vary depending upon the contact arrangement 1NO
[100], 1NC [010], 2NO [200], 2NC [020], 1NO1NC [110]
*2 Change of NO contact to NC contact connot be done at user.
*3 The lever movement is limited to either clockwise or counterclockwise operation. When
ordering, specify the lever moving direction. For the 1-way operation of 1NO1NC, or 2NC,
specify "R" at the end of the part number if CW is required or "L" for
CCW.
*4 Where contact arrangement is 1NO and 2NO, specify the operating direction required. If
it should turn on in CW operation, specify "R" at the end of the part number.
Specify "L" for CCW.
*5 Type PSKU-#R25AO for crane drum over-winding protection will not restrict. However,
after the contact has turned off, effective measures should be taken to lessen the effect
of accidental turn on due to shock or vibration.
*6 Heat-resistant, corrosion-resistant type PSDH is available on order.
| Floodtight Type Limit
Switches |
| Type |
PSPE-05E1 |
PSPE-05E2 |
| Contact Arrangement |
1NO |
1NC |
| Incorporated Bestact Type |
R15U |
| Operation Characteristics |
Pretravel |
3.5mm or less |
| Overtravel |
6.0mm or greater |
| Total Travel |
9.0mm or greater |
| Release Position |
1.5mm or greater |
| Operating Force |
2.1kgf or less |
| Operating Frequency |
3600 times/hour |
| Rated Insulation Voltage |
250VAC |
| Rated Continuous Current |
5A |
| Operational Power Ratings |
240VAC 1.0A,
115VDC 0.5A |
| Maximum Making Current |
240VAC 30A (PF:
0.7) |
| Insulation Resistance |
100MW
or greater (with 500V megger) |
| Withstand Voltage |
Across Contacts |
800VAC for 1
minute |
| To Ground |
1500VAC for 1
minute |
| Service Life |
Mechanical |
5,000,000 operations |
| Electrical *1 |
240VAC 5A making
0.5A breaking (PF: 0.4) over 1,000,000 operations |
115VAC, relay
coil load (36mA) over 5,000,000 operations |
230VAC, relay
coil load (146mA) over 5,000,000 operations |
115VDC, relay
coil load (50mA) over 5,000,000 operations |
| Shock Resistance |
294m/s2 (30G) or
greater |
| Vibration Resistance |
49m/s2 (5G) or
greater (15 to 200 Hz) |
| Ambient Temperature |
Operating |
-10 to +60°C (excluding
icing) |
| Storage |
-25 to +70°C |
| Enclosure |
Floodtight/Oiltight IP57 |
*1: For application to DC circuit, connect the black lead to (+) and the white lead to
(-).
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