Lakeshore Learning Materials 642 User Manual

Page 19

Lake Shore Model 642 Electromagnet Power Supply User’s Manual

Introduction

1-9

Safety Summary (Continued)

1.4 SAFETY

SYMBOLS

Number

Symbol

None

Publication

Description

IEC 417, No. 5031

Direct current

IEC 417, NO. 5032

IEC 417, No. 5033

Both direct and alternating current

IEC 617-2, No. 02-02-06

Three-phase alternating current

IEC 417, No. 5017

Earth (ground) TERMINAL

IEC 417, No. 5019

PROTECTIVE CONDUCTOR TERMINAL

IEC 417, No. 5020

Frame or chassis ground

IEC 417, No. 5021

Equipotentiality

IEC 417, No. 5007

On (supply)

IEC 417, No. 5008

Off (supply)

IEC 417, No. 5172

DOUBLE INSULATION OR REINFORCED

Bcakground color-yellow

Caution, risk of electric shock

Background color-yellow

Caution, hot surface

Background color-yellow

Caution (refer to accompanying documents)

IEC 417, No. 5268-a

In-position of bistable push control

IEC 417, No. 5269-a

Out-position of bistable push control

IEC 1010-1

Fuse

Alternating current

Equipment protected by

INSULATION

ISO 3864, No. B.3.6

IEC 417, No. 5041

ISO 3864, No. B.3.1

Symbol and outline-black