Transformers

MTC-CBT-70T is a bolt-on transformer module to adapt CBT 70J-1 and CBT 70JE-1 (and CBT 70J-1/JE-1 arrays) for use on distributed loudspeaker lines. It allows long cable runs and multiple speakers to be driven from a single distributed system amplifier channel.

Transformer taps include 120W, 60W, and 30W for 70V and 100V distributed lines, plus 15W for 70V only.

Connections are made via customer-supplied cable to screwdown terminals inside the enclosure. Two gland nuts are provided - one for the cable into the enclosure from the amplifier and one for the cable from the enclosed terminal strip to the input terminal of the loudspeaker. The gland nuts form a water-tight seal when used with round jacketed cable with outside diameter between 4.0 mm (0.16 in) and 9.0 mm (0.36 in).

The tap selection is made via the terminal connection of the cable from the power amplifier to the appropriate terminals on the internal terminal strip.

Mounting holes are provided that fit via two 6 mm screws to any of the two side-by-side insert points on the back of the CBT 70J-1 or CBT 70JE-1 cabinet.

Note that MTC-CBT-70T extends 86 mm (3.4 in) from the back of the CBT cabinet.

Available in black or white (-WH).

The Vertiv Liebert Transformer Distribution Unit (TDU) is a step down transformer / voltage converter that provides 120VAC output power from 208VAC or 240VAC input. Many 5kVA and higher single phase UPS products only accept 208VAC input power, so users consider Vertiv Liebert TDU, which accepts 208 or 240VAC (200/220/230 VAC acceptable) input and converts it to 120VAC (L-N) output. It is designed to work with Vertiv Liebert GXT3-6000RTL630, GXT4-6000RTL630, GXT4-3000RT208, and PSI5-5000RT208 but can be used with other UPS products with 208VAC in & out, and have a compatible input power plug. This 5050VA/5050W TDU has 10 power output connections: 8 NEMA 5-15/20R and 2 NEMA L5-30R. The integrated forced airflow in the unit assists in keeping the rack cool. This energy efficient device offers AC-AC efficiency of 94%. It meets standards in safety, RFI/EMI, environmental and transportation. This 2U rack-tower comes with a mounting kit for easy installation.

More from the Manufacturer

The Valcom VMT-1 transformer is designed to match inputs from or outputs to a 600-ohm line.

Used as an input-matching transformer, it connects telephone systems to most public address amplifiers, for telephone paging. In addition it functions as an output-matching transformer to feed program material over a 600-ohm telephone line for "music-on-hold". It is compatible with any amplifier having a 25V output connection.

• Hi-Z, 10k-OHM Primary Impedance
• Lo-Z, 600-OHM Secondary Impedance, Balanced with Center Tap
• Matches High-to-Low Impedance or Low-to-High Impedance
• Adapts Line Level Signals to Microphone Inputs
• Phono Jack or Screw Terminals for Hi-Z Side
• Screw Terminals for Lo-Z Side
• Steel Enclosure with Mounting Ears Allows Easy Mounting