Omron PCB Power Relay, 48V dc Coil, 10A Switching Current, 4PDT

Omron LY4 Series Power Relay, 48V Coil Voltage, 10A Switching Current - LY4 48VDC

This power relay is a PCB-mount switching device designed for control and signal applications in industrial environments. It operates from a 48V DC Coil to change multiple circuits simultaneously and is intended for installation where Compact plug-in relays are required. The unit is suited to control panels and automated systems that need reliable mechanical switching of AC loads.

Features and Benefits:

• Four-pole changeover contacts allow independent circuit control
  Coil consumption 0.9 W reduces drive power requirements
  Contact resistance 30 mΩ ensures low-voltage drop under load
  Switching capacity 1.1 kVA supports high-power AC circuits
  Rated switching 250V and 10A for mains-level switching
  Plug-in terminals simplify removal and replacement

Applications

• Suitable for industrial control panel contact switching
  Ideal for motor starter interlocks in automation systems
  Used with PLC outputs requiring multiple changeover contacts
  Can be used for power distribution switching in small switchgear
  Suitable for retrofit replacements in legacy relay boards

What mounting method does it use for board assembly?

It is supplied in a PCB-mount format with plug-in terminals for insertion into corresponding sockets to ease installation and servicing.

What environmental operating range must be observed?

The relay operates between -25 °C and 40 °C, so ambient conditions should remain within these limits for reliable operation.

How does Coil resistance affect drive circuitry?

The Coil has 1 600 Ω resistance, which determines the current draw at 48V DC and should be considered when designing the driver stage.

What physical form factor impacts panel layout?

The relay has a Compact profile with a height of 42.4mm, length of 28mm and width of 41.5mm, which assists in dense PCB layouts.

Approvals

UL, CSA, VDE and SEV