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B&B Electronics 485HESP - Datasheet User Manual

Learn more about surge suppression & isolation, Surge protection standards

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International Office: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104

European Office: Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445

www.bb-elec.com

[email protected]

[email protected]

SpeCiFiCationS

serial teChnology

485hesP
Connectors, line

3 position terminal blocks

Connectors, equipment 3 position terminal blocks
422hesP/232hesP
Connectors, line

5 position terminal blocks

Connectors, equipment 5 position terminal blocks

surge suPPression

Clamping Voltage

- stage 1

72 VDC, minimum

108 VDC, maximum

Series Resistance

- stage 2

2.7 Ohms

Clamping Voltage

- stage 3

6.45 VDC, minimum

7.14 VDC, maximum

Clamping Time

Less than 5 x10

-9

seconds

Dimensions

11.4 x 8.4 x 4.6 cm (4.5 X 3.3 x 1.8 in)

Installation

In-line

Weight

0.19 kg (6.7 oz)

environMental

Operating Temperature 0 to +70 °C (+32 to +185 °F)
Storage Temperature

-40 to +85 °C (-40 to +185 °F)

Operating Humidity

0 to 95% Non-Condensing

aPProvals / CertiFiCations - 485hesP

FCC Part 15, CISPR, EN 55022: 2010 + AC:2011 Class A Emissions
CE
EN 61000-6-1: 2007 Generic Standards for Residential, Commercial and Light-

Industrial Environments

EN 61000-4-5: 2006 Electrical Surges
Download complete Declaration of Conformity at www.bb.elec.com

three-stage rS-422/485 Surge protectors

485HESP, 422HESP, 232HESP

These three-stage surge protectors meet IEEE 1000-4-5: 1995 and IEEE
C62.41-1991 recognized standards for premium surge protectors. It
protects against lightning strikes, power surges, and other types of voltage
disturbances with three stages of protection for each supported line: a gas
discharge tube followed by a series resistor and finally a Transient Voltage
Suppresser (TVS). Three RS-422/485 signals on terminal blocks are
supported with a clamping voltage of approximately 6.8 Volts.

These surge protectors housed in a tough metal, panel mount case with a
protected signal ground connection and dedicated chassis ground lug.In
order to work properly, it is important to have a good connection between
the #10 screws and a solid earth ground. The 485HESP provides two
terminal posts and two metal mounting brackets to provide a good ground
connection.

•Three stages of protection on every data line

1) Gas discharge tube

2) Series resistor

3) Transient voltage suppressor

• Protected signal ground connection
• Rugged terminal block connections
• Dedicated chassis ground lug

proDuCt FeatureS

aCCeSSorieS

CU15B - Copper Grounding Strap

orDering inFormation

Model

nuMber

interFaCe

lines ProteCted

Mounting

485HESP

RS-422/485

(3) RS-422/485

Panel Mount

422HESP

RS-422/485

(5) RS-422/485

Panel Mount

232HESP

RS-232

(5) RS-232

Panel Mount

surge Protection standards

IEC 1000-4-5: 1995 “Surge Immunity Test” and IEEE C62.41-1991
“IEEE Recommended Practice on Surge Voltages in Low-Voltage AC
Power Circuits” are the recognized standards for surge protection.
B&B Electronics’ heavy duty surge protectors have been tested at 6
kV to meet these two specifications.

Learn more about surge suppression & isolation

www.bb-elec.com/TechLibrary

• “Isolation: Your Best Investment for Reliability”
• “Dataline Isolation Theory”
• “Dataline Surge Protection”

485HESP, 422HESP, 232HESP_3713ds