Surge Protective Devices

ASCO Model 138 (Edco RJA-RJD Series) Surge Protective Device

The ASCO Model 138 incorporates female jacks in and out. The ANALOG Model 138 voltage clamp is set for C.O. Trunks and Analog Telephone Extensions (with ring in voltage), and the DIGITAL Model 138 voltage clamp is set for Digital Extensions (no ring in voltage).

Best Suited For
  • Education
  • Fire/Alarm/Security
  • Healthcare
  • Manufacturing
  • Telecom
  • Transportation
  • Water Supply/Sewage Disposal
5 Year Warranty

Specifications

Specifications per model ASCO Model 138 (Edco RJA-RJD Series) Surge Protective Device
Previous Model Name Product Type Application Technology Height (in / mm) Width (in / mm) Depth (in / mm) Weight (lbs / kgs)
Edco RJA-RJD Series Data/Signal Telco Systems SAD/PTC 1.0 in / 25.4 mm 2.5 in / 63.5 mm 4.25 in / 108 mm 0.19 lbs / 0.09 kg
* To view a specific model product page click on the model name above.
ADDITIONAL TECHNICAL SPECIFICATIONS
Voltage/Configuration
Low Voltage DC
Maximum Continuous Operating Voltage
48, 220 VDC
Maximum Operating Current
150mA
DC Clamping Voltage
55, 280 VDC
Surge Capacity
.200kA
Connection Type
RJ-45 Jacks
Enclosure Type / Rating
Plastic
Certifications
UL 497A
Modes of Protection
L-L/L-G
Operating Temperature
-40°C to +85°C

Downloads

Technical Specifications

*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.

Features

<1 nanosecond response time
Solid-state resettable fuses – PTCs
Silicon breakover technology
Low capacitance
Line-to-line protection
Accommodates RJ-11 jack
Tip & ring to ground protection
CAN/CSA C22.2, No. 226-92 compliant
UL 497A listed
4 pair protection
5 year warranty 

Benefits

Protects line-to-line, as well as tip and ring to ground.
Responds quickly to transients.
Exhibits low capacitance to support high-speed data rates
 

Services & Support

Support

Frequently Asked Questions
Q
What is the maximum operating voltage of the ASCO Model 138 series?
A
The ASCO Model 138D055S200SRJN0 has a maximum operating voltage of 48 VDC and is intended to protect four pair digital phone lines. ASCO model 138D280S200SRJN0 has a maximum operating voltage of 220 and is intended to protect analog and central office telephone extensions.
Q
What connection type does the ASCO Model 138 series use?
A
The ASCO Model 138 series uses RJ-45 female jacks on the input and output.

Contacts

Sales In USA Change Location
FEDBIZ IT SOLUTIONS LLC
305 HARRISON STREET SE STE 1C LEESBURG Virginia 20175
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
GHA TECHNOLOGIES
407 HANRAHAN CT SE LEESBURG Virginia 20175
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
ADAR INC
16182 HILLSBORO RD PURCELLVILLE Virginia 20132
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
FRANK PARSONS BUSINESS PRODUCTS
4309 HENNINGER CRT ASHBURN Virginia 20147
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
INTELLIGENT DECISIONS INC
21445 BEAUMEDE CIR ASHBURN Virginia 20147
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
Liebert Products & Services-Capitol Sales Office
Email Contact +1 703 726 4100 Fax +1 703 729 3837
44611 Guilford Dr Ste 180 Ashburn Virginia 20147
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Monitoring
ANIXTER - FEDERAL SALES DC METRO
45075 OLD OX RD DULLES INTERNATIONAL Virginia 20166
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
DIGITAL TECHNOLOGIES INC
STE 550 45150 BUSINESS CT STERLING Virginia 20166
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
DULLES ELECTRIC SUPPLY CORP
22570 SHAW RD STE 150 STERLING Virginia 20166
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring
E TEL SYSTEMS CORP
STE 140 43766 TRADE CTR PL DULLES Virginia 20166
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Surge Protective Devices, Thermal Management, Integrated Solutions, Racks and Containment, Software, IT Management, Monitoring

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