2112AH1SDC947

TE CONNECTIVITY/AGASTAT 2112AH1SDC947 Time Delay & Timing Relay

Part Number: 2112AH1SDC947
Manufacturer: TE CONNECTIVITY/AGASTAT BRAND
Country of Origin: US
Unit of Measure: EA
ECCN: EAR99
Package Type: PKG
Datasheet: Download Datasheet

Product Features

• Miniature electro-pneumatic timing relay designed for high shock and vibration applications with hermetically sealed units.
• High repeat accuracy over voltage and temperature extremes, with ±5% at 25°C in normal vertical position.
• Adjustable delay ranges from milliseconds to 3 minutes, with easy linear adjustment via a circular-path Dial Head—no needle valves required.
• Sealed timing head circulates air under controlled pressure for reliable operation.
• Snap-action switch assembly ensures sustained contact pressure during timing cycles, with special over-center mechanism for flutter-free load transfer.
• Precision-wound solenoid assembly provides the basic motive force when the control circuit is closed.
• Robust construction in a self-supporting steel enclosure ensures long trouble-free operation.

Operation & Timing Ranges

Series 2112 (On-Delay):

• Applies rated voltage to start pre-set delay; NC contacts break and NO contacts make at end of delay.
• Contacts remain until coil is de-energized, then switch resets within 25 ms.

Series 2122 (Off-Delay):

• Applying rated voltage for at least 75 ms initiates immediate transfer of contacts.
• Delay begins upon coil de-energization; contacts revert after preset delay.
• No power required during delay; re-energizing restarts cycle.

Timing Adjustment & Ranges

• Easy linear adjustment over nine ranges:
• Range Codes and Durations:

  Code	Range
  A	0.03 to 0.1 sec
  B	0.1 to 0.3 sec
  C	0.15 to 1.0 sec
  D	0.375 to 3.0 sec
  E	0.75 to 10.0 sec
  F	1.0 to 30.0 sec
  G	2.0 to 60.0 sec
  H	5.0 to 120.0 sec
  J	5.0 to 180.0 sec
  K	1.5 to 30.0 cycles
  L	3.0 to 120.0 cycles

Electrical & Mechanical Specifications

• Operating Voltage (Coil Data):
  • 12VDC: Resistance 30Ω
  • 28VDC: Resistance 131Ω
  • 48VDC: Resistance 500Ω
  • 110VDC: Resistance 3200Ω
  • 120V 60Hz (Series 2112): Resistance 190Ω
  • 120V 60Hz (Series 2122): Resistance 285Ω
  • 240V 60Hz: Resistance 765Ω
  • 115V 400Hz: Resistance 2600Ω
  • 125VDC: Resistance 3380Ω
• Contact Ratings (DPDT Contacts):

  Voltage	Inductive (Amps)	Resistive (Amps)
  30V DC	2	10
  110V DC	0.75	1
  120V 60Hz	3	10
  120V 400Hz	1.5	10
  240V	1	5

• Ambient Temperature Range: -55°C to +85°C
• Weight: Max 17 ozs
• Mounting Options: Chassis mounting tabs, octal plugs, external or internal adjustment, panel mounting back plate

Additional Details

• Hermetically sealed models circulate air under controlled pressure for reliable timing.
• Designed for high shock and vibration environments.
• Re-set time: 25 ms (Series 2112), 75 ms (Series 2122).
• Relay operate time: 75 ms; release time: 25 ms.
• Insensitivity to transients of ±1500 VAC for 10 milliseconds.
• Dielectric withstands 1000V RMS at 60Hz between non-connected terminals.

For more detailed specifications, please refer to the datasheet. The datasheet was not processed; please search the internet for the part number for more details.

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