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7 standards and definitions, Standards and definitions, 1 terms and abbreviations acc. to din en 14597 – JUMO 701150 14597 safetyM STB/STW - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual User Manual

Page 37: 6 safety manual

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6 Safety Manual

37

2014-05-01

6.7

Standards and definitions

6.7.1

Terms and abbreviations acc. to DIN EN 14597

Abbreviation

Explanation

Type 2

Mode of operation for which the manufacturing variation and migration of the operating value, operat-

ing duration, or operating procedure has been checked.

Type B

Micro disconnection in operation, corresponding contact disconnection at at least one pole to

provide functional reliability.

Type D

A free trip mechanism that also cannot be closed temporarily for as long as the error persists.

Type F (STB)

A mode of operation in which, after the RS has been installed, it can only be reset with the aid of a tool.

Type J (STB)

A free trip mechanism with contacts that cannot be prevented from opening and which may not func-

tion as an automatically resetting RS if the means of resetting is held in the "Reset" or "On" position.

Type K

A probe mode of operation in which a probe break or a disconnection between the probe head and the

switching head does not cause the operating value to increase.

Type N

A mode of operation in which the operating value does not increase as a result of a leak in the probe or

in the parts that connect the probe and switching head. This mode is intended for use with electrical er-

ror models.

Type V (STB)

A lockout that can only be reactivated through a manual reset.

Type P

A mode of operation that is effective following a specified test through a change in temperature, as

specified in 17.101 of DIN EN 60730-2-9.