PSU2 12V DC 1A Model Railway Power Supply

About the Product

The BLOCKsignalling PSU2 is a regulated 12V DC 1A model railway power supply providing up to 12W output for BLOCKsignalling modules and other compatible 12V DC model railway electronics and accessories.

The PSU2 provides a regulated 12V DC output at up to 1A and is fitted with a standard 5.5mm × 2.1mm centre-positive DC plug, making it suitable for powering a wide range of compatible model railway electronics.

The compact plug-top design incorporates a fixed UK Type G mains plug and accepts a universal 90–264V AC input, making it a convenient dedicated power supply for model railway control modules and accessories.

Built-in over-voltage, over-current and short-circuit protection helps protect the power supply and connected equipment in the event of a fault.

Key Features

• Regulated 12V DC output.
• Maximum output current of 1A.
• Maximum output power of 12W.
• Ideal for model railway electronics and accessories.
• Compatible with a range of BLOCKsignalling modules.
• 5.5mm × 2.1mm centre-positive DC plug.
• 2000mm output lead.
• Fixed UK Type G mains plug.
• Universal 90–264V AC input.
• Over-voltage protection.
• Over-current protection.
• Short-circuit protection.
• UKCA, CE and RoHS certified.
• EN 62368-1 safety approved.
• Meets Efficiency Level VI requirements.

Electrical Specifications

• Output Voltage: 12V DC regulated.
• Maximum Output Current: 1A.
• Maximum Output Power: 12W.
• Input Voltage: 90–264V AC.
• Input Frequency: 50–60Hz.
• Output Connector: 5.5mm × 2.1mm DC plug.
• Polarity: Centre positive.
• Cable Length: 2000mm.
• Minimum Load Current: 0.01A (10mA).
• Mains Plug: UK Type G.

Compatible BLOCKsignalling Modules

The PSU2 is suitable for powering a range of BLOCKsignalling products requiring a regulated 12V DC supply, including:

• SS2A DC Model Railway Shuttle Controller
• SDCC1 DCC Shuttle Controller
• SDCC1-HP High Power DCC Shuttle Controller
• SAS2-BR Automatic Shuttle Controller
• PSU4 Power Distribution Module
  

It can also be used with other compatible 12V DC model railway electronics and accessories, provided their voltage, current, polarity and connector requirements are suitable.

Connection

The PSU2 is supplied with a standard 5.5mm × 2.1mm centre-positive DC plug for direct connection to compatible equipment.

Where a module or installation requires bare-wire connections, a suitable DC socket adaptor or connection arrangement can be used.

Protection

The PSU2 incorporates protection against common electrical fault conditions:

• Over-voltage protection.
• Over-current protection.
• Short-circuit protection.
• Automatic recovery following removal of the applicable fault condition.

Safety & Compliance

• Certifications: UKCA, CE and RoHS.
• Safety Approval: EN 62368-1.
• Efficiency: Level VI.
• Operating Temperature: 0°C to +40°C.
• Operating Humidity: 10–90%.