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Compact black ABS transformer unit with three screw terminals and grounded three-prong plug

MG Electronics

MG Electronics MGT-1240 Class II Transformer 12V AC 40VA

SKU CH-01TK-DPKKF

Provides 12 V AC at 40 VA with three screw terminals and grounded blade, operating from -10 °C to 40 °C

  • Class II insulation protects against electric shock
  • 12 V AC output powers compatible low-voltage devices
  • 40 VA rating supports moderate load requirements
  • Operating range of -10 to 40 °C suits varied environments

MG Electronics MGT-1240 Class II Transformer

This MG Electronics MGT-1240 is a Class II transformer that delivers 12V AC at 40VA output power. It suits installers and technicians who need a regulated low-voltage AC source for control circuits, door chimes or similar accessories. The unit uses ABS construction and provides three screw terminals for secure wiring connections.

Sustained load behaviour

The transformer is rated for continuous operation between -10 and 40C ambient temperature. Its Class II insulation and grounded three-prong blade design maintain safe output during extended duty cycles without requiring an external earth connection. UL and CSA approvals confirm compliance with North American safety standards for prolonged use.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $37.99
Cheaper than about 86% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does the MGT-1240 run hot when powering a load continuously?

The Class II transformer operates between -10 and 40 °C, so it stays within safe limits during all-day use without active cooling.

What wiring does the MGT-1240 need on the input side to work?

It connects to mains power through a three-prong grounded blade, so a standard earthed outlet is all that is required.

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