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DESCRIPTION

The nVent RAYCHEM TraceTek TTC-1 sensing module is used with 

TraceTek sensing cables to detect liquid leaks. The module provides 

visual indication when a leak or cable break has occurred and has 

relay contacts to connect the TTC-1 to external devices for remote 

monitoring and control.

ELECTRICAL CODES

Installation must be done in accordance with national and local 

codes and regulations that apply. The TTC-1 must be installed in 

ordinary areas only. 

MODULE LOCATION

Enclosure rating: IP 20 / NEMA 1 

Operating temperature range: 0ºC to 50ºC (32ºF to 122ºF)

SPECIFICATIONS

Maximum sensing cable length: 250 ft (76 m)

•  Leader cable length is not included in the length limitation. 

Input power: 

•  12 to 24 Volts AC – 0.25 A

•  15 to 24 Volts DC – 0.15 A

•  When using a transformer, use UL listed Class II transformer 

rated at 24 V, 20 VA

Recommended fuse rating: 3 A
Relay ratings: 3 A: 30 Volts DC or 24 Volts AC

INSTALLATION MATERIALS AND TOOLS REQUIRED

Wall fastener (2 ea for surface mounting only)

PARTS AND MATERIALS

•  1 ea TTC-1 Sensing Module

•  1 ea TTC-1 Wall Label

•  4 ea Strain Reliefs

OPTIONAL ACCESSORIES 

•  TTC-DRC DIN Rail Clip – Part # 062825-000 

•  TTE-XAL External Loud Alarm – Part # 418569-000

•  TT-MAP-TOOL – Part # E43135-000

APPROVALS

General Signaling Equipment

76LJ

TYPE NM

Figure 1: TTC-1 Module 

4.2 in

(106 mm)

2 in

(52 mm)

4.4 in

(112 mm)

TRACETEK

IMPORTANT NOTES

•  The TTC-1 module is designed for use with TraceTek sensing 

cables and probes only. A TTC-1 based system will detect and 

alarm on all fluid leaks detected by the TraceTek cable as per 

the appropriate cable data sheet. 

•  Transient spills and contamination may also activate the 

system. Users should consider this operational function when 

determining the suitability of the TraceTek system for specific 

applications.

•  The system has not been designed for repetitive cycling.
•  Always connect the Leak Detection relay to an annunciation 

device (for example the nVent RAYCHEM TraceTek TTE-XAL 

External Loud Alarm) so that an operator is notified and can 

verify proper operation if automatic equipment is connected.

•  Maintenance personnel should examine the sensing cable for 

cleanliness and verify proper operation of the TTC-1 module at 

least every six (6) months.

TTC-1

TraceTek Sensing Module Installation, Operation  

and Maintenance Instructions

Summary of Contents for TRACETEK TTC-1

Page 1: ...1 ea TTC 1 Wall Label 4 ea Strain Reliefs OPTIONAL ACCESSORIES TTC DRC DIN Rail Clip Part 062825 000 TTE XAL External Loud Alarm Part 418569 000 TT MAP TOOL Part E43135 000 APPROVALS General Signaling Equipment 76LJ TYPE NM Figure 1 TTC 1 Module 4 2 in 106 mm 2 in 52 mm 4 4 in 112 mm TRACETEK IMPORTANT NOTES The TTC 1 module is designed for use with TraceTek sensing cables and probes only A TTC 1 ...

Page 2: ...ull the module top away from the base Note If the screws are not fully released the base can be damaged during this step The screws are captive and will be retained with the module when separated from the base Figure 4 Module dis assembly Strip all wire insu lation back 3 8 inch Push leader cable power supply and relay contact wires through the strain reliefs as needed see Figure 5 Wires should be...

Page 3: ... operation Module Field Adjustments Time Delay can be increased from immediate to approximately 2 minutes using adjustment screw on rear panel Sensitivity can be increased or decreased from factory setting with adjustment screw on rear panel See further discussions in the Field Adjustments and Maintenance section on page 5 WARNING To avoid electrical shock all wiring must be done with the power of...

Page 4: ...Break Indication LEAK LED OFF CABLE BREAK LED ON yellow RESET LED OFF POWER LED ON green LEAK DETECTION RELAY NORMAL de energized TROUBLE RELAY ALARM de energized User Action 1 Investigate the sensor cable and leader cable for physical damage Check connectors for damage Make repairs or replace components as necessary 2 CABLE BREAK LED automatically turns off when full sensor cable continuity is re...

Page 5: ... track the sensor cable conditions i e RELAY in ALARM mode if the cable is wet and RELAY automatically reset when the cable dries This alternative configuration causes the Leak Detection relay to track the cable condition and no user interaction is required to reset the leak relay To enable automatic relay tracking and defeat the latch function remove the small jumper wire between terminal 18 and ...

Page 6: ...ellow to black at the sensor cable terminal block This simulates a very short piece of sensor cable and the yellow CABLE BREAK LED should go off If the TTC 1 cannot pass the jumper wire test it may require replacement Problem PLC or other host system detects a fault when the TTC 1 is operating in NORMAL mode Possible Cause Loose connections at terminal block or broken wires between TTC 1 and PLC A...

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