That means the neutral pole is a solid through-bar or a switched pole that doesn't open the neutral under fault; confirm your circuit design expects a solid neutral path.
Deployment and environment
The operating temperature range spans -40 °C to 75 °C, with a derating curve above 55 °C: the breaker can handle up to 95 % relative humidity at 55 °C, tapering to 35 % at 75 °C. The breaker is sealable, which allows a panel builder or inspector to lock the toggle in the ON or OFF position with a padlock — useful for lockout/tagout procedures during maintenance. Touch protection is built into the terminals, so live parts are not accessible when the breaker is installed in a panel with the cover closed.
The breaker is designed and tested to EN 60898 (for residential and similar installations) and IEC 60947-2 (for industrial applications). The UL/CSA listing is at 5 kA per UL 1077 and CSA C22.2 No. 235, which covers supplementary protectors for North American panels. For DC circuits, the breaker is rated 72 V maximum with a 15 kA interrupting capacity per IEC 60947-2. The product designation follows DIN EN 61346-2 and DIN EN 81346-2 letter code F (protective device). Compliance documentation — RoHS, REACH, CE, UKCA, and the manufacturer's declaration of conformity — is available upon request as part of the standard technical documentation package for this SENTRON series.