Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out
Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out

Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out

$75.00
$75.00

Only 1 left in stock.

Vintage Gould 2150SDAQL66 Thermal Time Delay Relay 120V 0.6-60 Sec Slow Drop Out

Up for sale is a vintage industrial thermal time delay relay, model 2150SDAQL66, from Gould (later ITE / Siemens). The original packaging identifies this as a "Thermal Relay."

This is a high-quality, heavy-duty component designed for industrial control applications. It uses a robust thermal mechanism (a heating element and bimetallic strip) to achieve a consistent and adjustable time delay. This specific model is a "Slow-Drop-Out" (SDA) type, meaning it is designed to keep the contacts energized for a set duration after the coil power has been removed.

Excellent previously used condition.

Key Specifications:

  • Manufacturer: Gould / ITE
  • Model Number: 2150SDAQL66
  • Type: Type 215 Thermal Time Delay Relay
  • Mechanism: Thermal (Heating Element & Bimetallic Strip)
  • Function: SDA (Slow-Drop-Out / Delay on De-energization)
  • Coil Voltage: 120V
  • Timing Range: Adjustable from 0.6 to 60 Seconds
  • Contact Configuration: 3PST-NO (Three Pole, Single Throw, Normally Open).
  • Mounting: Panel / Flange Mount

Potential Applications:

This type of thermal timing relay is used in industrial automation and machine control circuits where a process needs to continue for a short time after a stop signal, such as:

  • Motor braking circuits
  • Conveyor sequencing
  • Lubrication or cooling cycles after machine shutdown
  • General industrial control logic


We typically ship within one business day!  International buyers are responsible for any customs/duty fees.

Most of the parts we sell are vintage New Old Stock parts.

We use high quality shipping supplies and biodegradable peanuts to make sure your parts arrive safely. 

NOS (New Old Stock) parts are Genuine Factory Original parts.
NORS (New Old Replacement Stock) parts are original vintage aftermarket parts.
NOS and NORS does not necessarily mean the parts are perfect.
Manufacturing technology was not the same as it is today so imperfections should be expected.
Also, these parts may have been in storage for 40-80 years and could be dusty, greasy or have surface rust, spider webs, etc.