Electromechanical all-or-nothing relays. Blank detail specification. Electromechanical all-or-nothing telecom relays of assessed quality. Two change-over contacts, 20 mm x 10 mm base.

UNGÜLTIG herausgegeben am 19.9.2002

Electromechanical all-or-nothing relays. Blank detail specification. Electromechanical all-or-nothing telecom relays of assessed quality. Two change-over contacts, 14 mm x 9 mm base.

UNGÜLTIG herausgegeben am 19.9.2002

Electromechanical non-specified time all-or-nothing relays of assessed quality. Blank detail specification. Electromechanical all-or-nothing telecom relays of assessed quality. Two change-over contacts, 15 mm x 7,5 mm base.

UNGÜLTIG herausgegeben am 25.7.2002

Electromechanical non-specified time all-or-nothing relays of assessed quality. Blank detail specification. Electromechanical all-or-nothing telecom relays of assessed quality. Two change-over contacts, 11 mm x 7,5 mm (max.) base.

UNGÜLTIG herausgegeben am 30.8.2002

Specified time relays for industrial use. Requirements and tests.

UNGÜLTIG herausgegeben am 15.3.2000

Live working. Care, maintenance and in-service testing of aerial devices with insulating booms.

UNGÜLTIG herausgegeben am 15.10.2001

Intrinsically safe power supplies for use in coal mines. Specification for d.c. power supplies.

UNGÜLTIG herausgegeben am 31.7.1989

Intriniscally safe power supplies for use in coal mines. Specification for d.c. power supplies.

UNGÜLTIG herausgegeben am 15.3.1994

Intrinsically safe power supplies for use in coal mines. Specification for a.c. power supplies.

UNGÜLTIG herausgegeben am 30.9.1982

Intrinsically safe power supplies for use in coal mines. Specification for rechargeable battery units.

UNGÜLTIG herausgegeben am 30.9.1982