Volume control switch for 100V distribution systems, max. 120 W/100 V, 6 positions, requires TL 128 autotransformer, 3/4-wire mandatory listening (24V relay), switch to priority channel, white/black/silver knob, without frame. • The 6-position selector CT 61 is designed to be used with an RCF TL 128 line transformer to provide volume control for a speaker group with a maximum power of 120 W. • All connected speakers must have 100 V line matching transformers. It features a 24 V DC override relay to either bypass the selector or introduce a second 100 V line (unaffected by volume control) for paging purposes. • It is compatible with 3-wire lines for emergency announcements without utilizing the internal 24 V DC relay. The CT 61 can be mounted on any suitable frame for home/office electrical systems by drilling a hole and securing the control circuit. Features: • 5 selectable volume positions + OFF • Designed for use with TL 128 autotransformer (not included) • Includes 3 knobs in white, silver, and anthracite colors • 24 V DC override relay for selector bypass included General Specifications: • Input voltage: 100 V • Output voltage: 100 V • Maximum power: 120 W • Max Depth: 58 / 2.28 mm/inch Physical Specifications: • Height: 50 / 1.96 mm/inch • Width: 43 / 1.69 mm/inch • Depth: 68 / 2.67 mm/inch • Net Weight: 0.04 / 0.08 Kg/Lbs Shipping Information: • Package height: 120 / 4.72 mm/inch • Package width: 70 / 2.75 mm/inch • Package depth: 75 / 2.95 mm/inch • Shipping Weight: 0.05 / 0.09 Kg/Lbs