Low-voltage EI Transformer-MKPT-41-121000T

Product Overview

The MKPT-41-121000T is a low-voltage EI transformer designed for 12W-class power supplies in control and auxiliary circuits. With a 230VAC, 50Hz rated input and a 12VAC, 1A output, it provides a stable and isolated AC source for downstream rectification and regulation circuits. Its compact size of 43 × 35 × 28 mm and lead-terminal connection make it easy to install in small control boxes, terminal devices and indoor equipment.

Thanks to its robust insulation system, built-in temperature/current protection support and compliance with key global safety and EMC standards, MKPT-41-121000T is a reliable choice for export-oriented OEM customers.

Key Features & Benefits

• 12W low-voltage AC output
  Provides 12VAC at 1A rated output (12W), suitable for powering relays, indicator lamps, small motors or low-voltage electronics after rectification and regulation.
• 230VAC / 50Hz mains input
  Designed for 230VAC, 50Hz input commonly used in Europe and many other regions, ideal for equipment targeting overseas markets.
• Safe isolation for control circuits
  Galvanic isolation between primary and secondary windings helps protect low-voltage control circuits from mains surges and improves user safety.
• Compact footprint for small enclosures
  The 43 × 35 × 28 mm housing and approx. 273 g weight allow the transformer to fit into compact control boards, wall-mounted devices and small appliances where space is limited.
• Stable operation in 0–30 ℃ ambient
  Suitable for typical indoor environments such as control cabinets, machine rooms and residential installations, supporting long-term continuous operation.
• Protection features supported
  Supports temperature and current protection (to be coordinated with the overall power supply design), helping prevent overheating and overload damage during abnormal conditions.
• Global safety & EMC compliance
  Designed to meet UL62368, EN62368, FCC Part 15, EN55032 and GB4943.1, helping your finished products pass safety and EMC testing and enter target markets faster.
• OEM / ODM customization available
  As part of Macable Group Company’s transformer series, input/output parameters, lead length, terminal type and mechanical details can be customized according to your circuit diagram and installation space.

Typical Applications

• Control boards and small control panels
• HVAC controllers, fan coil units and thermostats
• Security and alarm panels, access control systems
• Small household appliances and smart home devices
• Auxiliary 12VAC power modules up to 12W

Detailed Specifications – MKPT-41-121000T

The table below summarizes the key electrical and mechanical parameters of the MKPT-41-121000T low-voltage transformer for convenient design and purchasing reference:

Detailed Specifications