Extron PS 1220 (part number 70-967-01) — the quarter-rack build of Extron's 12 volt, 2 amp desktop power supply, now retired.

Extron shipped the PS 1220 in two mechanical formats, and this part number is the quarter-rack version. Electrically it is the same 24 watt supply: 12 VDC at 2 A, fed from any mains between 100 and 240 VAC, drawing 27.5 watts and 0.6 A at full load and settling to 0.04 watts when nothing is drawing from it. Average efficiency comes in at 91.11%, which is why Extron marks the family with the UL Environment Energy Efficiency Certification and rates it at level VI. Quarter-rack PS Series units use the ZipClip 200 bracket.

Key Capabilities

• 12 VDC at 2 A, 24 watts of continuous output.
• Quarter-rack mechanical format, distinct from the eighth-rack 70-1259-01.
• Universal 100 to 240 VAC, 50-60 Hz input.
• 0.04 watts at standby; 27.5 watts and 0.6 A maximum at full power.
• Average efficiency of 91.11%; 85.8% at a 10% load on 230 VAC.
• ZipClip 200 mounting clip is the quarter-rack bracket for this family.

Where It Is Used

Legacy Extron installations built around the quarter-rack chassis: control room racks, older lectern and podium builds, courtroom and classroom systems, and service work where an exact mechanical replacement matters more than picking the current catalog part.

Specifications at a Glance

• Power output: 12 VDC, 2 A, 24 watts
• Power input: 100-240 VAC, 50-60 Hz; 27.5 watts, 0.6 A max at full power
• Enclosure type: high impact, high temperature plastic; quarter-rack width
• Thermal dissipation: 0.20 BTU/hr no load, 11.1 BTU/hr full power
• Product warranty: 7 years parts and labor

Also referenced as Extron PS1220, PS-1220, part number 7096701. Extron lists this part as Retired.