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Duty |
80 Ampere Rating |
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30% |
150 Amperes |
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40% |
125 Amperes |
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50% |
115 Amperes |
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60% |
105 Amperes |
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70% |
95 Amperes |
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Typical Inductive fault Currents
Which can Be Ruptured (5ms Time Constant) |
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Without Blowouts: |
500 Amperes at 48V DC |
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With Blowouts: |
500 Amperes at 96V DC |
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Maximum Recommended Contact Voltages
When Direct Current Loads Are To Be Switched |
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| Without Blowouts: |
Inductive Load 48V |
Resistive Load 60V |
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| With Blowouts: |
Inductive Load 96V |
Resistive Load 120V |
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When loads are not switched even under
fault conditions, contact voltages
may be increased to 250V DC. |
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Typical Voltage Drop Across
New Contacts: |
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40mV at 80A |
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| Mechanical Life: |
>3 x 10,000,000 |
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| Coil Power Dissipation |
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| Intermittently Rated Types
(50% Duty Cycle): |
10 to 14 Watts |
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| Continuously Rated Types: |
5 to 7 Watts |
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| Magnetically Latched Types: |
Initially 12 Watts (0.5Sec) |
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Then 0 Watts |
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| Maximum Pull-in Voltage (Coil at 20°C) |
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| Intermittently Rated Types: |
60% V |
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| Continuously Rated Types: |
66% V |
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| Typical Drop-Out Voltage: |
10 to 25% |
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| Typical Pull-in Time (N/O Contacts to
Close): |
15ms |
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| Typical Drop-out Time (N/O Contacts to
Open) |
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| Without Suppression: |
6ms |
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| With Diode Suppression: |
35ms |
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| Typical Main Contact Changeover Time (PC61
and SW61) |
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| Normally Closed to Normally
Open: |
6ms |
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| Normally Open to Normally
Closed: |
4ms |
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| Typical Contact Bounce Period: |
3ms |
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| Auxiliary Contact Thermal Current Rating: |
5 Amperes |
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| Auxiliary Contact Switching Capacity
(Resistive Load): |
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5A at 24V DC |
1A at 60V DC |
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O.5A at 120V Dc |
0.25A at 240V DC |
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