TC 94

All-or-nothing electrical relays

Label	Title
Working Group
WG 3	Maintenance of basic relay standards
WG 6	Maintenance of reed switch standards
WG 9	Solid-state relays
Maintenance Teams
MT 4	Maintenance of time relay standards
MT 5	Maintenance of series IEC 61811 Electromechanical all-or-nothing relays

Country	Country Code	P/O Status	IEC Membership
Austria	AT	P-Member	Full Member
Belgium	BE	O-Member	Full Member
Bulgaria	BG	O-Member	Full Member
China	CN	P-Member	Full Member
Czech Republic	CZ	O-Member	Full Member
Denmark	DK	O-Member	Full Member
Finland	FI	O-Member	Full Member
France	FR	P-Member	Full Member
Germany	DE	P-Member	Full Member
Hungary	HU	P-Member	Full Member
India	IN	O-Member	Full Member
Iran	IR	O-Member	Full Member
Ireland	IE	O-Member	Full Member
Israel	IL	O-Member	Full Member
Italy	IT	P-Member	Full Member
Japan	JP	P-Member	Full Member
Korea, Republic of	KR	O-Member	Full Member
Netherlands	NL	O-Member	Full Member
New Zealand	NZ	O-Member	Full Member
Norway	NO	O-Member	Full Member
Poland	PL	O-Member	Full Member
Romania	RO	O-Member	Full Member
Russian Federation	RU	O-Member	Full Member
Serbia	RS	O-Member	Full Member
Singapore	SG	O-Member	Full Member
Spain	ES	P-Member	Full Member
Sweden	SE	O-Member	Full Member
Switzerland	CH	P-Member	Full Member
Ukraine	UA	O-Member	Full Member
United Kingdom	GB	P-Member	Full Member
United States of America	US	P-Member	Full Member

Chair	Mr Jürgen Steinhäuser (DE) Term of office : 2026-02	Send Email
Secretary	Mr Bernhard Spalt (AT)	Send Email

Technical Officer	Mr Miroslav Siket	Send Email
Standards Project Administrator	Ms Nadine Andrey	Send Email
Standards Project Administrator	Ms Izabela Witik	Send Email
Editor	Ms Mélanie Ardiri	Send Email

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Committee	Description	Incoming liaison representative	Outgoing liaison representative
Internal IEC Liaison
TC 18	Electrical installations of ships and of mobile and fixed offshore units
TC 44	Safety of machinery - Electrotechnical aspects		Mr Mabruk Farrah
SC 48B	Electrical connectors		Mr Christian Kroepfl
TC 72	Automatic electrical controls		Mr Christoph Oehler
TC 111	Environmental standardization for electrical and electronic products and systems		Mr Mabruk Farrah
SC 121A	Low-voltage switchgear and controlgear	Mr Karl Hiereth	Mr John Kovacik
Liaison ISO
ISO/TC 20/SC 1	Aerospace electrical requirements		Mr Martin Reizner
ISO/TC 178	Lifts, escalators and moving walks	Mr Vincent Robibero	Mr Kenjiro Hamada
ISO/TC 199	Safety of machinery		Mr Eric DOMONT