740001-( ) Null Plus Trailing Discharger

Part Number: 740001

The 740001-( ) series is a null plus, trailing-edge, light-weight static discharger. It consists of an aluminum shank section into which a distributed resistive element is inserted.  The distributed resistive element has a composite semi-conductive carbon discharge point.  The element is protected with a special thermo-fit shrink tubing to protect it against rain erosion.

Mounting: 610R Series Retainers (16700, 16820, 16760, 16900, 740015).

The set screw is supplied with a self-locking feature.

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Product Info

Discharger Installation and Type

Discharger Electrical Properties

Installation : Trailing
Type : Null-Plus Trailing
Resistance : 6-200 MΩ
RF Discharge Noise (NoiseQuieting) : -40 dB min @ 50 µA; -60 dB min Typical
Discharge Current : 10 µA min @ 40 kV
Continuous Discharge : 50 µA for 24 hours
Power Dissipation : 5 Watts
Electrical Flashover : 200 Joules @ 2kA
Lightning Transfer : Zone 2A 100kA, 2kA, 0.5kA
Lightning Survability : Zone 1A 200kA, 2kA

Discharger Physical Properties

Discharger Mechanical Properties

Length : 8.87 in.
Weight (oz) : 0.634
Tension : 50 lbs
Finish : Chem-Film MIL-DTL-5541 Type II, Class 3
Speed Rating : 600
Sand and Dust : 500 ft/min
Salt Spray : 5% NaCI, 7.0 pH 95 °F, 48 hrs
Thermal Shock : 20 gPEAK

Discharger General Properties

Compatible Retainers : 16335 Aluminum Trailing Edge Retainer

Federal Specifications

MIL-DTL-9129F

Product Info

Discharger Installation

Installation : T
Type : N

Discharger Electrical Properties

Resistance : 6-200 MΩ
RF Discharge Noise (NoiseQuieting) : -40 dB min @ 50 µA; -60 dB min Typical
Discharge Current : 10 µA min @ 40 kV
Continuous Discharge : 50 µA for 24 hours
Power Dissipation : 5 Watts
Electrical Flashover : 200 Joules @ 2kA
Lightning Transfer : Zone 2A 100kA, 2kA, 0.5kA
Lightning Survability : Zone 1A 200kA, 2kA

Discharger Physical Properties

Length : 8.87 in.
Weight (oz) : 0.634
Tension : 50 lbs
Finish : Chem-Film MIL-DTL-5541 Type II, Class 3

Discharger Mechanical Properties

Speed Rating : 600
Sand and Dust : 500 ft/min
Salt Spray : 5% NaCI, 7.0 pH 95 °F, 48 hrs
Thermal Shock : 20 gPEAK

Discharger General Properties

Compatible Retainers : 16335 Aluminum Trailing Edge Retainer

Federal Specifications

MIL-DTL-9129F

Accesories and Options

Product Variants

Product Number

Description

Connector

# of Mounting Holes

Color

Finish

A (in)

B (in)

C

D

740001-1
Null Plus Trailing Discharger
740001-2
Null Plus Trailing Discharger
740001-Q
Null Plus Trailing Discharger

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Dayton-Granger, Inc.
3299 SW 9th Avenue
Fort Lauderdale, FL 33315