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RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover

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RCS Audio-Systems TRT-400 A
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489,25 EUR
( 582,21 EUR incl. VAT )
2025-11-22Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
1x RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover
Lieske Part No.:1927725
Mfg Part No: TRT-400 A
Weight:0.12 kg
Graduated prices net
From piecesPrice per pieces
4459,90 EUR
8430,54 EUR
12401,19 EUR
16371,83 EUR

Product information for RCS Audio-Systems TRT-400 A:

The TRT-400 A is a speaker connection module with integrated volume control, designed for use in EN 54-17 certified electroacoustic emergency warning and voice alarm systems (ENS/SAA). Unlike isolators, it has no disconnection function and must always be placed between two isolators (such as TRC-800 A or TRT-200 A).

The module supports two usage scenarios: It allows for individual volume adjustment of a general background music feed, or it can be used to inject a separate 100V audio program to the connected loudspeaker. In both cases, the volume control is automatically bypassed during emergency announcements, ensuring full-volume playback.

Powered via the Ringbus and controlled by the TRC-800 A, the TRT-400 A also monitors its connections for faults such as short circuits, open circuits, and ground faults.

Technical Specifications (English):


Model:
  • TRT-400 A

Power Supply (via TRC-800 A):

  • 19 – 30 V DC (Nominal 30 V DC)
  • Idle current: 100 µA
  • Max. Power Consumption: 20 mW

Control Signal:

  • 20 kHz / 7.5 Vrms

Switching Times:

  • Fade-in: 0.3 s
  • Fade-out: 1.0 s

Wiring:

  • 2-wire system, max. 2.5 mm²
  • Max. loop length: 1,000 m
  • Max. cable diameter: 13 mm

T-Branch (End-of-Line):

  • Max. 50 W
  • EoL resistor: 47 kOhm, 0.25 W or higher

Speaker Type:

  • Not specified (designed for 100V systems with volume control)

LOOP Fault Detection:

  • Short circuit
  • Wire-to-wire
  • Open circuit
  • Ground fault

Mounting:

  • Surface-mounted near speaker

Connections:

  • Loop Input: L+, L−, GND (0.8–2.5 mm²)
  • Loop Output: L+, L−, GND (0.8–2.5 mm²)
  • Speaker: L+, L−, GND (0.8–2.5 mm²)
  • LED: L+, L− (0.8–2.5 mm²)

Housing / Protection:
  • ABS with transparent cover
  • IP21C

Dimensions (W x H x D):

  • 110 x 130 x 55 mm

Weight:

  • 160 g

Certification:

  • EN 54-17:2005
  • Certificate: 0560-CPR-142190002

Special Features:

  • 60 W volume control
  • Two modes: Volume adjustment or dedicated 100V feed
  • Auto-bypass during alarms
  • Integrated line monitoring and fault detection



Questions & answers

What is the delivery time of RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover?

The article RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover is currently in stock

According to our experience the article is ready for dispatch within 7 working days. The delivery time usually refers to 1 piece. When ordering larger quantities, we can maybe shorten the delivery time. Just send us an inquiry about the desired quantity of RCS Audio-Systems TRT-400 A to our sales team for an exact delivery time.

How can I buy the item at a lower price?

We offer you RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover always at the best possible price. We can give you a discount of 2% on RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover if you choose payment in advance on ordering.

In addition, you can save money with our attractive graduation prizes with every purchase. If you buy a minimum of 4 pieces of RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover we can offer you a price of 459,90 EUR per piece. The more you buy, the cheaper the article will be.

You can also send us a price proposal for your desired quantity of RCS Audio-Systems TRT-400 A ›VARES-LOOP‹ ring bus module, with volume control 60W, IP 21C, including cover via the form price proposal. Enter your name, contact details, price and quantity you need. Our sales team will then send you a good quotation immediately.

We also offer individual prices for your needs. You can get an offer by using the form Wholesale Inquiry.

 


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