51461AR

TIMER, MH RHODES 2430NHCS-02B
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About this product
The 51461AR is an OEM MH Rhodes 2430NHCS-02B electromechanical countdown timer switch designed for precise, short-duration control of electrical circuits. It provides a user‐adjustable range up to 30 minutes and can switch loads up to 20 A at 125–250 VAC, making it suitable for many aviation ground‐support devices and certain in‐flight timed functions. Its rugged metal housing and gear‐driven mechanism ensure reliable operation in demanding environments, while a clear dial and durable contacts help prevent missettings or premature wear.
51461AR Datasheet
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Life Limited Part: No
Lead Time: Stock
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

51461AR

Adjustable 0–30 Minute Range: The built‐in mechanical dial lets users set any countdown time between 0 and 30 minutes.

Wide Voltage Compatibility: Fully functional on 125 VAC or 250 VAC circuits without modification, supporting common aircraft ground‐support and avionics bench configurations.

Electromechanical Durability: Gear‐driven mechanism with metal‐contact switch elements resists shock and vibration, reducing failure risk in workshop or hangar settings.

Clear Dial Markings: Large, easy‐to‐read minute graduations on the front panel help technicians set and verify countdown values quickly.

    Automatically limits power to ovens or water boilers in aircraft galleys, preventing overheating during catering service.
    Provides a controlled 30‐minute activation interval for inflatable de‐icing boots during ground maintenance or in‐flight checks.
    Ensures precise charging window for ground‐support battery carts, avoiding overcharge or undercharge of aircraft batteries.
    Manages timed temperature or humidity cycles in avionics bench test chambers to verify component durability. 

    • What is the maximum countdown time?

    The timer can be set anywhere between 0 and 30 minutes using the front‐panel dial.

    • Does this timer require calibration?

    No periodic calibration is needed. The mechanical gearing and contact springs are preset for accurate timing out of the box. 

    • How is the timer mounted?

    It installs via a panel‐mount flange with four screw holes, fitting standard instrument panel cutouts.

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