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IEC 60335-2-21:2012

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Household and similar electrical appliances - Safety - Part 2-21: Particular requirements for storage water heaters

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

18-10-2022

Published date

06-11-2012

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirement
5 General conditions for the tests
6 Classification
7 Marking and instructions
8 Protection against access to live parts
9 Starting of motor-operated appliances
10 Power input and current
11 Heating
12 Void
13 Leakage current and electric strength at operating
   temperature
14 Transient overvoltages
15 Moisture resistance
16 Leakage current and electric strength
17 Overload protection of transformers and associated
   circuits
18 Endurance
19 Abnormal operation
20 Stability and mechanical hazards
21 Mechanical strength
22 Construction
23 Internal wiring
24 Components
25 Supply connection and external flexible cords
26 Terminals for external conductors
27 Provision for earthing
28 Screws and connections
29 Clearances, creepage distances and solid insulation
30 Resistance to heat and fire
31 Resistance to rusting
32 Radiation, toxicity and similar hazards
Annexes
Annex A (informative) - Routine tests
Annex R (normative) - Software evaluation
Annex AA (normative) - Additional requirement for immersion
         heater units intended for the installation in heat
         exchange closed water heaters
Bibliography

IEC 60335-2-21:2012 deals with the safety of electric storage water heaters for household and similar purposes and intended for heating water below boiling temperature, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. This standard is also applicable to immersion heater units intended to be retrofitted in a heat exchange closed water heater having provision for retrofitting. Such a unit shall comply with the requirements in Annex AA. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account persons (including children) whose physical, sensory or mental capabilities, or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction or children playing with the appliance. This sixth edition cancels and replaces the fifth edition published in 2002 including its Amendment 1 (2004) and its Amendment 2 (2008). The principal changes in this edition as compared with the fifth edition of IEC 60335-2-21 are as follows:
- added requirements for immersion heater units (fixed immersion heaters);
- removed reference to ISO 13732-1 from Bibliography. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication. Keywords: Storage, Immersion, Water, Heater

This publication is to be read in conjunction with IEC 60335-1:2010. The contents of the corrigendum of April 2013 have been included in this copy.

Committee
TC 61
DevelopmentNote
To be used in conjunction with IEC 60335-1. (07/2002) Stability Date: 2018. (09/2017)
DocumentType
Standard
Pages
60
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

11/30247843 DC : 0 BS EN 12977-2 - THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 2: TEST METHODS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
DD CEN/TS 12977-2:2010 Thermal solar systems and components. Custom built systems Test methods for solar water heaters and combisystems
PREN 12976-2 : DRAFT 2014 THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 2: TEST METHODS
14/30298612 DC : 0 BS EN 12976-2 - THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 2: TEST METHODS
EN 60335-2-15:2016 Household and similar electrical appliances - Safety - Part 2-15: Particular requirements for appliances for heating liquids
S.R. CEN TS 12977-1:2010 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
DIN EN 15033 E : 2007 ROOM SEALED STORAGE WATER HEATERS FOR THE PRODUCTION OF SANITARY HOT WATER USING LPG FOR VEHICLES AND BOATS
BS EN 624:2011 Specification for dedicated LPG appliances. Room sealed LPG space heating equipment for installation in vehicles and boats
IEC 60335-2-40:2018 RLV Household and similar electrical appliances - Safety - Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
DIN EN 15033:2007-02 Room sealed storage water heaters for the production of sanitary hot water using LPG for vehicles and boats
EN 15033:2006/AC:2008 ROOM SEALED STORAGE WATER HEATERS FOR THE PRODUCTION OF SANITARY HOT WATER USING LPG FOR VEHICLES AND BOATS
EN 12499:2003/AC:2006 INTERNAL CATHODIC PROTECTION OF METALLIC STRUCTURES
DD CEN/TS 12977-5:2010 Thermal solar systems and components. Custom built systems Performance test methods for control equipment
DD CEN/TS 12977-1:2010 Thermal solar systems and components. Custom built systems General requirements for solar water heaters and combisystems
04/30114109 DC : DRAFT MAY 2004 EN 12976-2 - THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - TEST METHODS
12/30257357 DC : 0 BS EN 12976-2 - THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 2: TEST METHODS
PREN 12976-1 : DRAFT 2014 THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 1: GENERAL REQUIREMENTS
I.S. EN 12977-2:2012 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 2: TEST METHODS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
IEC 60335-2-40:2018 Household and similar electrical appliances - Safety - Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
DIN EN 12977-5:2016-08 (Draft) THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 5: PERFORMANCE TEST METHODS FOR CONTROL EQUIPMENT
I.S. EN 12977-1:2012 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
S.R. CEN TS 12977-5:2010 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 5: PERFORMANCE TEST METHODS FOR CONTROL EQUIPMENT
BS EN 60335-2-15:2016 Household and similar electrical appliances. Safety Particular requirements for appliances for heating liquids
S.R. CEN TS 12977-2:2010 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 2: TEST METHODS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
IEC 60335-2-40 REDLINE : 6.0 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
I.S. EN 624:2011 SPECIFICATION FOR DEDICATED LPG APPLIANCES - ROOM SEALED LPG SPACE HEATING EQUIPMENT FOR INSTALLATION IN VEHICLES AND BOATS
12/30257354 DC : 0 BS EN 12976-1 - THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 1: GENERAL REQUIREMENTS
11/30247849 DC : 0 BS EN 12977-5 - THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 5: PERFORMANCE TEST METHODS FOR CONTROL EQUIPMENT
07/19990369 DC : 0 BS EN 806-4 - SPECIFICATIONS FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 4 - INSTALLATION
BS EN 60335-2-35:2016 Household and similar electrical appliances. Safety Particular requirements for instantaneous water heaters
12/30258813 DC : 0 BS EN 60335-2-35 ED 5 - HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-35: PARTICULAR REQUIREMENTS FOR INSTANTANEOUS WATER HEATERS
BS EN 60335-2-73 : 2003 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-73: PARTICULAR REQUIREMENTS FOR FIXED IMMERSION HEATERS
UNI CEN/TS 12977-1 : 2010 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
UNI EN 12977-2 : 2012 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 2: TEST METHODS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
I.S. EN 60335-2-15:2016 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-15: PARTICULAR REQUIREMENTS FOR APPLIANCES FOR HEATING LIQUIDS
UNI EN 12977-5 : 2012 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 5: PERFORMANCE TEST METHODS FOR CONTROL EQUIPMENT
BS EN 12976-2:2017 Thermal solar systems and components. Factory made systems Test methods
I.S. EN 12977-5:2012 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 5: PERFORMANCE TEST METHODS FOR CONTROL EQUIPMENT
I.S. EN 12976-2:2017 THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 2: TEST METHODS
EN 60335-2-35:2016 Household and similar electrical appliances - Safety - Part 2-35: Particular requirements for instantaneous water heaters
EN 12977-1:2018 Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems
I.S. EN 60335-2-35:2016 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-35: PARTICULAR REQUIREMENTS FOR INSTANTANEOUS WATER HEATERS
IEC 60335-2-35:2012+AMD1:2016 CSV Household and similar electrical appliances - Safety - Part 2-35:Particular requirements for instantaneous water heaters
UNE-EN 60335-2-15:2016 Household and similar electrical appliances - Safety - Part 2-15: Particular requirements for appliances for heating liquids
IEC 60335-2-73:2002+AMD1:2006+AMD2:2009 CSV Household and similar electrical appliances - Safety - Part 2-73: Particular requirements for fixed immersion heaters
CSA C22.2 No. 60335-2-40 : 2017 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
UNI CEN/TS 12977-2 : 2010 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 2: TEST METHODS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
UNI EN 624 : 2011 SPECIFICATION FOR DEDICATED LPG APPLIANCES - ROOM SEALED LPG SPACE HEATING EQUIPMENT FOR INSTALLATION IN VEHICLES AND BOATS
DIN EN 12977-1:2016-08 (Draft) THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
DD ENV 12977-3:2001 Thermal solar systems and components. Custom built systems Performance characterisation of stores for solar heating systems
BS EN 12977-1:2012 Thermal solar systems and components. Custom built systems General requirements for solar water heaters and combisystems
EN 12976-2:2017 THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 2: TEST METHODS
UNI EN 12977-1 : 2012 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
BS EN 12977-5:2012 Thermal solar systems and components. Custom built systems Performance test methods for control equipment
BS EN 12977-2:2012 Thermal solar systems and components. Custom built systems Test methods for solar water heaters and combisystems
EN 12977-5:2018 Thermal solar systems and components - Custom built systems - Part 5: Performance test methods for control equipment
IEC 60730-2-9:2015 RLV Automatic electrical controls - Part 2-9: Particular requirements for temperature sensing controls
IEC 60335-2-15:2012+AMD1:2016 CSV Household and similar electrical appliances - Safety - Part 2-15:Particular requirements for appliances for heating liquids
BS EN 60335-2-40 : 2003 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
BS EN 12499:2003 Internal cathodic protection of metallic structures
BS EN 15033:2006 Room sealed storage water heaters for the production of sanitary hot water using LPG for vehicles and boats
BS EN 806-2:2005 Specifications for installations inside buildings conveying water for human consumption Design
12/30218781 DC : DRAFT JAN 2012 BS EN 60335-2-40 - HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
UNE-EN 624:2011 Specification for dedicated LPG appliances - Room sealed LPG space heating equipment for installation in vehicles and boats
EN 806-2:2005 Specification for installations inside buildings conveying water for human consumption - Part 2: Design
EN 624:2011 Specification for dedicated LPG appliances - Room sealed LPG space heating equipment for installation in vehicles and boats
12/30258817 DC : 0 BS EN 60335-2-15 ED 6 - HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-15: PARTICULAR REQUIREMENTS FOR APPLIANCES FOR HEATING LIQUIDS
CSA E60335.2.15 : 2005 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-15: PARTICULAR REQUIREMENTS FOR APPLIANCES FOR HEATING LIQUIDS
DD ENV 12977-1:2001 Thermal solar systems and components. Custom built systems General requirements
04/30113768 DC : DRAFT MAY 2004 EN 12976-1 - THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 1: GENERAL REQUIREMENTS
14/30298615 DC : 0 BS EN 12976-1 - THERMAL SOLAR SYSTEMS AND COMPONENTS - FACTORY MADE SYSTEMS - PART 1: GENERAL REQUIREMENTS
DD ENV 12977-2:2001 Thermal solar systems and components. Custom built systems Test methods
CSA E60335.2.40 : 2001 SAFETY OF HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - PART 2: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
02/207214 DC : DRAFT JULY 2002 PREN 12499 - INTERNAL CATHODIC PROTECTION OF METALLIC STRUCTURES
UNI EN 806-2 : 2008 SPECIFICATION FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 2: DESIGN
EN 60335-2-73 : 2003 AMD 2 2009 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-73: PARTICULAR REQUIREMENTS FOR FIXED IMMERSION HEATERS
DIN EN 12977-2:2016-08 (Draft) THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 2: TEST METHODS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
I.S. EN 60335-2-73:2003 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-73: PARTICULAR REQUIREMENTS FOR FIXED IMMERSION HEATERS
DIN EN 624:2011-10 Specification for dedicated LPG appliances - Room sealed LPG space heating equipment for installation in vehicles and boats
DIN EN 806-2:2005-06 Specification for installations inside buildings conveying water for human consumption - Part 2: Design
DIN EN 12977-5:2012-06 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 5: PERFORMANCE TEST METHODS FOR CONTROL EQUIPMENT
CEN/TS 12977-2:2010 Thermal solar systems and components - Custom built systems - Part 2: Test methods for solar water heaters and combisystems
CEN/TS 12977-1:2010 Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems
CEN/TS 12977-5:2010 Thermal solar systems and components - Custom built systems - Part 5: Performance test methods for control equipment
DIN EN 12977-1:2012-06 THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS
EN 60335-2-40:2003/A13:2012/AC:2013 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS
I.S. EN 60335-2-40:2006 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES - SAFETY - PART 2-40: PARTICULAR REQUIREMENTS FOR ELECTRICAL HEAT PUMPS, AIR-CONDITIONERS AND DEHUMIDIFIERS (IEC 60335-2-40:2002 (MOD))
UNE-EN 60335-2-35:2016 Household and similar electrical appliances - Safety - Part 2-35: Particular requirements for instantaneous water heaters

IEC 60335-2-35:2012+AMD1:2016 CSV Household and similar electrical appliances - Safety - Part 2-35:Particular requirements for instantaneous water heaters
IEC 60335-2-15:2012+AMD1:2016 CSV Household and similar electrical appliances - Safety - Part 2-15:Particular requirements for appliances for heating liquids
AS/NZS 60335.2.15:2019 Household and similar electrical appliances - Safety Particular requirements for appliances for heating liquids (IEC 60335-2-15 Ed 6.2, MOD)
IEC 60335-2-75:2012+AMD1:2015 CSV Household and similar electrical appliances - Safety - Part 2-75:Particular requirements for commercial dispensing appliances and vending machines

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