- Increase
existing contact interrupt rating to 15 A @ 280 Vdc for
circuit with L/R ratio of less than or equal to 40 ms.
- Installs
easily with simple connections.
- Withstands
interrupting 10 A of trip coil current four times in
three seconds; trip/high-speed reclose/trip/delayed reclose/trip/delayed
reclose/trip.
- Protects
many contact types including 52a, 52b, trip, close, lockout
coil, auxiliary, and control switch.
- Low-cost,
two-terminal device.
- Connect
across auxiliary contacts, lockout switch contacts, trip
contacts/close contacts, PLCs, sensitive communication
contacts, and SCADA contacts.
- Protects
the contact by actually interrupting the current.
- Increases
contact reliability.
- Reduces
contact monitoring.
- Eliminates
contact service and maintenance.
- Eliminates
contact arcing in dc circuits.
- Eliminates
contact wear.
- Reduces
voltage stress with smooth current interruption.
- Reduces
dc circuit "noise."
- Not
for use with reed relays.
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- Decrease
maintenance costs, increase contact reliability/dependability,
and reduce destructive dc circuit overvoltages by applying
the self-powered SEL-9502 Contact Arc Suppressor to dc
circuits. When parting contacts interrupt current, arcing
occurs, causing the contacts to wear. The SEL-9502 smoothly
interrupts the current, over a few milliseconds. The
SEL-9502 absorbs the inductive energy of the circuit
and dissipates it as heat, instead of dissipating the
energy by vaporizing or welding the metal of the contacts.
Contacts carry current (with no voltage drops) when they
are closed and block current when they are open. The
SEL-9502 enables an arc-free interruption, which significantly
extends the life of the contacts.
Budgetary
Retail, Quantity 1: $105
(Prices
displayed are for planning purposes and are subject to change.
Contact your SEL sales representative today
for a quote on configurations and quantities to meet your
needs.)
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