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C048-702-30 R02, Rev. B (03/2021)

The following sections contain important safety information that must be followed during the installation and maintenance 

of the equipment. Read all of the instructions before installing or operating the equipment, and save this manual for future 

reference.

There may be multiple warnings associated with the call out. Example:

ATTENTION provides specific regulatory/code requirements that may affect the placement of equipment and /or 

installation procedures. 

ATTENTION:

 

NOTICE provides additional information to help complete a specific task or procedure. 

NOTICE

:

ELECTRICAL HAZARD WARNING provides electrical safety information to PREVENT INJURY OR DEATH 

to the technician or user. 

WARNING! ELECTRICAL HAZARD

FUMES HAZARD WARNING provides fumes safety information to PREVENT INJURY OR DEATH to the 

technician or user. 

WARNING! FUMES HAZARD

FIRE HAZARD WARNING provides flammability safety information to PREVENT INJURY OR DEATH to the 

technician or user. 

WARNING! FIRE HAZARD

This WARNING provides safety information for both Electrical AND Fire Hazards

WARNING! ELECTRICAL & FIRE HAZARD

CAUTION provides safety information intended to PREVENT DAMAGE to material or equipment. 

CAUTION!

GENERAL HAZARD WARNING provides safety information to PREVENT INJURY OR DEATH to the 

technician or user. 

WARNING! GENERAL HAZARD

Safety Notes

Alpha Technologies Services, Inc. considers customer safety and satisfaction its most important priority. To reduce the 

risk of injury or death and to ensure continual safe operation of this product, certain information is presented differently in 

this manual. Alpha

®

 tries to adhere to ANSI Z535 and encourages special attention and care to information presented in 

the following manner:

Summary of Contents for Alpha TRD

Page 1: ...TRD VRLA Battery Thermal Runaway Detection System for DCX Series Battery Disconnect Systems Technical Manual Effective March 2021...

Page 2: ...fumes safety information to PREVENT INJURY OR DEATH to the technician or user WARNING FUMES HAZARD FIRE HAZARD WARNING provides flammability safety information to PREVENT INJURY OR DEATH to the techn...

Page 3: ...his powering system please contact Alpha Technologies Services Inc or your nearest Alpha representative Alpha shall not be held liable for any damage or injury involving its enclosures power supplies...

Page 4: ...lation 6 4 1 Installation Preparation 6 4 1 1 Elevated Operating Ambient Temperature 6 4 1 2 Reduced Air Flow 6 4 1 3 Mechanical Loading 6 4 1 4 Circuit Overloading 6 4 1 5 Reliable Earthing 6 4 1 6 D...

Page 5: ...ker and disconnect the battery string from the load and rectifier system Manual disconnect is always available via simply turning off the circuit breaker handle The TRD option Thermal Runaway Detector...

Page 6: ...ure that all of the following conditions are met before proceeding 4 1 1 4 1 1 Elevated Operating Ambient Temperature Elevated Operating Ambient Temperature If you install the product in a closed or m...

Page 7: ...circuit board assembly inside of the DCX unit Ensure that there is a secure connection with full alignment and seating of the connectors Align the mounting holes of the TRD board assembly with the ex...

Page 8: ...bottom of the stack and repeat the installation procedure from Step 9 for this sensor Confirm all connections are tight Step 11 Locate temperature sensor cables and confirm that they are different len...

Page 9: ...NC normally closed C common Max 1 ampere 30VDC y Actuates first if a thermal fault is initially detected Can be wired to a remote strobe lamp horn etc to notify alert condition locally Can be wired to...

Page 10: ...connect Figure 7 Internal TRD detect and remote disconnect control Option B Internal TRD detect and remote disconnect control This option requires use of a remote controller device of some kind such a...

Page 11: ...tions Input Voltage 48V DC supplied by DCX unit term board Width 7 25 in Height 5 5 in Operating Temperature 0 to 50 C Elevation 500m to 2800m 7 0 7 0 Ordering Information Ordering Information Table 5...

Page 12: ...Technical Support 1 800 863 3364 For more information visit our website at www alpha com 2021 Alpha Technologies Services Inc All Rights Reserved Trademarks and logos are the property of Alpha Techno...

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