A403503

Single Row Terminal Blocks 

## A4 & B4 

## **A4                                                 B4** 

## **Specifications** 

**Rating:** See table. 

**Center Spacing:** 0.562” or 9/16” (14.28mm) 

**Wire Range:** See rating table. 

A400303 B484302 

**Screw Size:** #8-32 or #10-32 zinc-plated slotted screws **Torque Rating:** #8 screw size 16 lb-in. 

#10 screw size 20 lb-in. 

## **Distance Between Barriers:** 0.47” (11.9mm) 

**Operating Temperature:** 105°C (221°F) max., -40°C (-40°F) min. 

**Molded Material:** Black, UL Rated 94V0 Thermoplastic 

**Hardware:** Bottom studs supplied with nuts assembled. 

**Extended Hex Nuts:** Optional extended, slotted hex nuts enable easier installation and removal with hex wrench or screwdriver. Available in bulk for the #10-32 studs on A4953 blocks. Specify part number F582 and quantity. 

**Breakdown Voltage:** 6100V 

**Agency Information:** UL File E62622, CSA File 47235; CE Certified 

## **Dimensions** Inches (Millimeters) 

## **MOUNTING ENDS ONLY** 

## **Rating Table** 

|**Part Number**<br>A4003XX<br>A4011XX<br>A4013XX<br>A4035XX<br>A4041XX<br>A4043XX<br>A4813XX<br>A4843XX<br>A4953XX<br>B4843XX|**Terminal Top**<br># 8 Screw<br># 8 Screw<br># 8 Screw<br># 8 Screw<br>#10 Screw<br>#10 Screw<br>#10 Screw<br>#10 Screw<br>#10 Stud<br>#10 Screw|**Terminal**<br>**Bottom**<br>#8 Stud<br>Solder<br>Solder<br>Closed<br>Solder<br>Solder<br>SolderTurret<br>#8 Screw<br>#10 Stud<br>#8 Screw|**Wire***<br>**Range Cu**<br>8-16 AWG<br>10-16 AWG<br>10-16 AWG<br>8-16 AWG<br>10-16 AWG<br>10-16 AWG<br>10-16 AWG<br>8-16 AWG<br>8-16 AWG<br>8-16 AWG|**Ratings* Volts/**<br>**Amps**<br>150V/50A<br>600V/35A<br>600V/35A<br>600V/50A<br>600V/35A<br>600V/35A<br>600V/35A<br>150V/50A<br>150V/50A<br>600V/50A|
|---|---|---|---|---|



* All models 30A Max. with 10 AWG 

|**Poles**|**“A”**<br>**Mounting Centers**|**“B”**<br>**Dimension Length**|
|---|---|---|
|02|1.690|2.120|
|03|2.255|2.685|
|04|2.820|3.250|
|05|3.385|3.817|
|06|3.950|4.382|
|07|4.515|4.947|
|08|5.080|5.513|
|09|5.645|6.078|
|10|6.212|6.644|
|11|6.777|7.210|
|12|7.342|7.775|
|13|7.908|8.340|
|14|8.473|8.905|
|15|9.038|9.470|
|16|9.605|10.035|



Dimensions in inches. To convert to millimeters, multiply by 25.4. 

35-50A ratings with 8 AWG using ring or fork type terminals. Note: 50A rating achieved with #8 copper wire crimped to ring terminal. 

## **Reference Panel Cutout for 6 Position Block** 

A4 &  B4 Single Row Terminal Blocks 

## **Part Numbering System** 

**Family Terminal Style Base/End Poles Screw Options Options A4 00** - screw top; stud bottom ***1** - flat base/ **02** to **16 Blank** - std. screws **A1** to **A9** 0.250” mount end QC **B4 01** - screw top; solder bottom **00** - screws shipped **03** - screw top only **3** - insulator basebulk **L1** to **L6** marking (not available **04** - brass nickeloptions (pg 25) **04** - #10 screw top; solder in 03 terminal term. b. style)/mount end plated† **Covers** - (pg 26) **07** - steel SEMS zinc **81** - screw top; solder turret **5** - closed base/ bottom #10-32 mount end plated (not available with hardware options; **84** - screw top; screw bottom (available in 03 only available on A4011, #10-32 terminal only A4013, A4021 and **95** - stud top*, stud bottom A4035) 

* Available in 01, 04 terminal styles only 

## **Terminal Styles** Inches (Millimeters) 

**Hardware Options** Inches (Millimeters) 

(Bulk ordering part numbers are in parentheses) 

24 

EATON www.eaton.com 

Effective November 2019 Supersedes December 2017 

Single Row Terminal Blocks 

## **Tools & resources** 

- Webpage 

- Terminal block selector tool 

- Terminal block cross reference 

- Conatct us 

## **Eaton** 

**Electronics Division** 

1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com/electronics 

© 2019 Eaton All Rights Reserved Printed in USA Publication No. 10682 — BU-MC19146 November 2019 

Eaton is a registered trademark. All other trademarks are property of their respective owners. 

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