USED · TESTEDALLEN-BRADLEY
Allen-Bradley 509-AAA-A2F NEMA Size 0 Motor Starter
509-AAA-A2F
$1,2951 available
NEW · SEALEDActual unit photographed
✓Function-tested
✓Serial verified
✓Photos of actual unit
✓30-day warranty
QUALITROL 909-300-01 SEAL- IN RELAY 24VDC - NEW
P/N: 909-300-01NEW · SEALED
$2,250.00
Out of stock — we can source it
Notify me / source it30-day warranty included
Every unit is function-tested before shipping and covered for 30 days from delivery. DOA units replaced at our cost.
Ships from Goleta, CA
Ships to 30+ countries
100% positive feedback
3,200+ items sold
Key specifications
Platform
Qualitrol 909 Series seal-in (latching) relay for transformer protection circuits
Function
Latches momentary alarm/trip contact closures and holds them until the front-panel reset button is pressed
Works with
Qualitrol 900 (oil-space) and 910 (gas-space) rapid pressure rise relays and other momentary-contact instruments
Outputs
Two output relays for simultaneous alarm and trip control
Output contact rating
1/4 HP @ 125/250 VAC; 8 A @ 250 VAC; 8 A @ 30 VDC (resistive)
Reaction time
Under 20 ms
Supply input
Jumper-selectable 24 VDC, 48 VDC, or line-voltage AC/DC; 24 VDC per this listing
Reliability features
Status LEDs; redundant make/break input circuit guards against false trips from damaged wiring
Item specifics
Brand
QUALITROL
Type
Screw Terminal
Voltage
24VDC
Model
909-300-01
MPN
909-300-01
The Qualitrol 909-300-01 is a seal-in (latching) relay from the Qualitrol 909 Series, built for transformer protection schemes where a momentary contact closure has to be captured and held. Qualitrol’s 900 (oil-space) and 910 (gas-space) rapid pressure rise relays actuate only briefly during a sudden-pressure event; the 909 latches that momentary signal, holds the alarm and trip circuits with LED status indication, and releases only when the front-panel reset button is pressed. It is the standard companion device for Qualitrol RPRR protection in utility substations, transformer manufacturing, and industrial power plants.
This listing is for a Qualitrol 909-300-01 with screw-terminal field wiring, listed for 24 VDC control power. The unit accepts a jumper-selectable supply, drives two output relays for simultaneous alarm and trip control, and uses a redundant make/break input circuit that protects against false trips caused by damaged wiring.
Condition: New, sealed, as listed. The photographs are of the actual unit you’ll receive, covered by the Network Orbitz 30-Day Warranty.
Orders are professionally packed and dispatched fast, fully tracked. Heavy items ship on protected freight. Every unit carries our 30-day warranty from delivery.
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