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Rectangular gray metal electronic timer enclosure

Intermatic

Intermatic ET90215C Astronomic Timer Gray Metal

SKU CH-Z29G-QPEJK

Astronomic electronic timer with two SPDT channels, 30 A rating, 120 to 277 V AC, 4,000 events, metal snap-in enclosure

  • TypeIndustrial Electrical Controls & Automation
  • ColorGray
  • Color MappingGray
  • Astronomic 365-day scheduling automates lighting year-round
  • Two independent channels control separate circuits simultaneously
  • 30 A SPDT contacts switch heavy loads directly
  • 120–277 V AC input suits commercial voltage supplies
  • Metal snap-in enclosure installs quickly in panels

Astronomical timer for lighting control

The Intermatic ET90215C is an electronic timer with astronomical operation across a 365 day calendar. Two independent channels each provide SPDT contacts rated at 30 A for 120 to 277 V AC circuits. It suits commercial and industrial lighting schedules that must follow sunrise and sunset times.

Thermal performance and power consumption

The metal enclosure dissipates heat from the internal electronics during continuous operation. Rated contacts handle up to 1 hp at 120 V AC and 2 hp at 240 V AC on the normally open side. No active cooling is required and the unit runs silently in normal service.

Upgrade from basic time switches

This timer replaces simple mechanical or fixed schedule controllers when daily on and off times must track seasonal daylight changes. Four thousand programmable events allow complex cycling, pulse and on/off sequences across two channels. Buyers who need only a single fixed schedule or who require wireless connectivity will not benefit from the astronomical feature set.

Highlights

  • Astronomic 365-day scheduling automates lighting year-round
  • Two independent channels control separate circuits simultaneously
  • 30 A SPDT contacts switch heavy loads directly
  • 120–277 V AC input suits commercial voltage supplies
  • Metal snap-in enclosure installs quickly in panels

Specifications

BrandINTERMATIC
TypeIndustrial Electrical Controls & Automation
ColorGray
Color MappingGray

Questions about this item

How is the Intermatic ET90215C timer mounted, and what step is often missed?

The unit uses a snap-in metal enclosure; the step often missed is verifying the supply voltage is between 120 and 277 V AC before wiring the two SPDT channels.

What maintenance will the Intermatic ET90215C timer need over time?

No user-serviceable parts are listed; the 30 A contacts and 365-day astronomic programming are designed to run without scheduled maintenance.

What is the first limit reached when the Intermatic ET90215C timer runs continuously at full load?

The 30 A per channel rating and the 2 HP (NO) at 240 V AC motor load are the limiting factors under sustained operation.

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