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WARNINGS AND CAUTIONS

• 

TO AVOID FIRE, SHOCK OR DEATH; TURN OFF POWER

 AT CIRCUIT BREAKER OR FUSE AND TEST THAT THE POWER IS OFF BEFORE WIRING!

•    To be installed and/or used in accordance with appropriate electrical codes and regulations.
•     If you are not sure about any part of these instructions, consult an electrician.
•     Read material thoroughly before attempting to assemble and install this device or product.
•     Incorrect assembly or installation may result in fire, electrical property damage, shock, personal injury, or death.

 

 

 

3420-009  

3420-035

Maximum DC
Operating Voltage: 

     

 

9.0VDC  

35VDC

Clamping Voltage
@ 10 Amps: 

  81V 

 

115V

Maximum Surge Current:   1kA
Strike Breakdown Voltage:

 

 

 

100V/micro second  

100V/S

3420-009: 

 

  13V 

 

 10.5

3420-035: 

 

  48.6V 

 

 40.8V 

Maximum Capacitance A-B Lines: 

L-L: 2.2 pf, L-G: 73 pf

Operating Temperature Range:

 -40°C to 60°C

Storage Temperature Range:

 -40°C to 90°C

Relative Humidity:

 0 to 95% non-condensing

Altitude:

 -1000 ft. to 15000 ft.

Tested to UL 497B

Solid state semi-conductor SPD circuitry for Loop Circuit protection (Line to Line protection and both Line 1 and Line 2 to 
Ground).The SPD’s enclosure is a non-conductive ABS case. ABS is a flame retardant thermoplastic, compliant with UL 
497B polymeric material test requirements.

SURGE PROTECTIVE DEVICE

4-20 mA CURRENT LOOP MODULE

Cat. No. 3420-009, 3420-035 

DI-000-03420-00F

ENGLISH

INSTALLATION INSTRUCTIONS

DESCRIPTION

SPECIFICATIONS

SYSTEM VOLTAGE REQUIREMENTS

Leviton’s Current Loop Modules, Cat. No. 3420-009 and 3420-035 are designed as 
the primary line of protection from data line impulses and transients. The Loop Circuit 
Modules are connected in series as a Surge Protective Device (SPD) in the data line.

Surge Protection Devices (SPDs) are intended for use in Current Loop Circuit applications. The voltage for 
Cat. No. 3420- 009 SPD’s ranges from -9.0 to +9.0 VDC with a maximum continuous operating voltage of 
9.2VDC. The voltage for Cat. No. 3420-035 SPD’s ranges from -35 to +35VDC with a maximum continuous 
operating voltage of 38.5VDC.

1

1

1

2

2

2

S

H

S

hield

1

2

S

hield

Loop Circuit 

M

odule

Current 

S

ource

4-20 

S

ystem 

M

odule

Input

Output

Figure 1 - Terminal Connections

Brass Terminal Plate 

Connected To Ground

Braided Ground Wire

3-Pin 

Headers (2)

3-Pin Terminal 

Connectors

(2 Included)

Retaining 

S

crews

Figure 2 - Connector Locations

LOAD

LOAD

LOAD

+

+

+

+

+

-

-

-

-

-

CIRCUIT 

CURRENT 

S

OURCE

CONTROLLER

+

-

Figure 3 - Typical 

M

odule Locations

Note: Insert Loop Circuit 

M

odule at any one

of the locations marked “X”.

WEB 

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