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Transparent DC power solenoid with standard bracket mounting, six terminals and threaded contact posts

Emerson Climate Technologies

Emerson Climate Technologies WHITE-RODGERS 124 305111S1 DC Power Solenoid 12V 100A

SKU CH-ND3W-E1HRE

A 12 V DC power solenoid rated for 100 A continuous duty with silver-alloy contacts and an isolated coil

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • Continuous duty cycle supports non-stop operation
  • 12 V DC coil voltage matches standard systems
  • 150 A current rating handles heavy loads
  • Silver alloy contacts resist wear and corrosion
  • Wide -40 °F to 149 °F temperature range ensures reliability

WHITE-RODGERS 124 305111S1 DC Power Solenoid

The WHITE-RODGERS 124 305111S1 is a 12 V DC power solenoid rated for 100 A continuous duty. It uses a silver alloy SPDT contact set and an isolated coil with 13.2 ohm resistance. The unit measures 4.69 in long by 2.19 in high and operates from -40 to 149 degrees F.

Upgrade from lower-rated contactors

This solenoid replaces contactors with a current rating below 150 A or coil voltages other than 12 V DC. The jump is worth it when the application demands continuous duty at 100 A and the standard bracket mounting pattern matches the existing panel layout.

Check coil voltage and terminal threads

Verify that the control circuit supplies exactly 12 V DC and that the wiring harness uses #10-32 UNF-2A threads for the coil and 5/16 in-24 UNF-2A threads for the power contacts. Confirm the operating temperature range fits the installation environment and that the six-terminal SPDT arrangement matches the required switching logic.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $49.99
Pricier than about 55% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameWHITE-RODGERS
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

What bracket and thread sizes are needed to mount the 124 series solenoid?

The unit uses a standard mounting bracket and has contact terminals with 5/16 in-24 UNF-2A threads plus coil terminals with #10-32 UNF-2A threads for secure fastening.

How do I wire the isolated coil correctly on the 305111S1 model?

Connect 12 V DC across the two #10-32 UNF-2A coil terminals; the coil is isolated so it shares no path with the main 5/16 in power contacts.

When should the silver-alloy contacts be inspected or replaced on this 150 A continuous-duty solenoid?

Check the silver-alloy contacts if voltage drop rises across the 5/16 in terminals or after extended cycling at 150 A in ambient temperatures near 149 °F.

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