Vaisala WSP150 Technical data

WSP150 Surge Protector

WSP150 - powerful technology in a compact size.

Features/Beneﬁts

Superior three-stage, transient

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surge protection

Tolerates up to 10 kA surge

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currents

Noise ﬁltering against HF and

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RF interference

Robust structure, IP66 housing

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Both dierential and common

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mode protection on each channel

2 power and 2 data channels

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Can be used with all Vaisala

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wind and weather instruments

Applications: mast installations

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of weather measurement networks, MET stations in wind parks

WSP150

The Vaisala Surge Protector WSP150 is a compact transient overvoltage suppressor designed for outdoor use. It can be used with all Vaisala wind and weather instruments.

Superior protection

A lightning strike nearby may induce a high voltage surge, which the integral transient suppressor of the instrument may not tolerate. Therefore, additional protection is needed, especially where frequent and severe thunderstorms are common and where long cables of more than 30 m are used.

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The WSP150 offers three-stage protection against surge currents up to 10 kA entering through the power and signal cables.

Powerful technology

The WSP150 has four channels, two of which are dedicated to power lines and two for data lines. Each channel uses a three-stage protection scheme as follows: rst there are discharge tubes, then voltage dependent resistors (VDR), and nally transient zener diodes. Between each stage, there are either series inductors or resistors.

Both differential and common mode protection is provided for each channel: across the wire pairs, against the operating voltage ground, and against the earth.

The WSP150 also includes noise ltering against HF and RF interference.

Applications

Vaisala recommends using the WSP150 when wind and weather instruments are installed on top of high buildings or masts and in open grounds, that is, anywhere with an elevated risk of lightning.

Also use the WSP150 if your cable length exceeds 30 m or you have unshielded, open-wire lines.

130

120

Line cable Device cable,

max. 3 meters

16 mm

copper wire

Technical data

Maximum characteristics

Dimensions

Input voltage (across channel line pair and from line to GND, terminals #3)

power channels max. ±43 V data channels max. ±13 V

Input common mode voltage

any line to earth max. ±72 V

Throughput current

power lines max. 1.5 A data lines max. 0.16 A

Throughput resistance (per line)

power lines 0.3 ohms data lines 15 ohms

Turn-on voltage

power channels max. ±60 V data channels max. ±16 V

Surge current

to earth max. 10 kA differential max. 5 kA

EMC surge tolerance EN 61000-4-5, (4 kV, 2kA)

IEEE C62.45 (6 kV, 3 kA)

General

Operating and storage temperature -52 ... +70 °C

(-60 ... +158 °F)

Installation and maintenance work temperature -40 ... +70 °C

(-40 ... +158 °F) Environmental protection class IP66 (NEMA 4X) Dimensions

housing (w x h x d) 130 x 94 x 58 mm with cable glands and mounting assembly 130 x 120 x 69 mm cables ø 4 ... 8 mm wires ø 0.4 ... 1.7 mm

(AWG 26 ... 14) Housing material polycarbonate, stainless steel Weight 0.65 kg

WSP150 CAN BE USED WITH, FOR EXAMPLE, THE FOLLOWING VAISALA INSTRUMENTS:

WXT520 WMT52 WM30 WS425 WA15 + WAC151/WAC155/WAT12 WA25 + WAC151/WAC155/WAT12

For more information, visit www.vaisala.com or contact us at sales@vaisala.com

This material is subject to copyright protection, with all copyrights retained by Vaisala and its individual partners. All rights reserved. Any logos and/or product names are trademarks of Vaisala or its individual partners. The reproduction, transfer, distribution or storage of information contained in this brochure in any form without the prior written consent of Vaisala is strictly prohibited. All speciﬁcations — technical included — are subject to change without notice.