Accessories; Accessories For 3Rr2 Current Monitoring Relays; Sealable Cover - Siemens 3UG4 User Manual

Accessories

13.1

Accessories for 3RR2 current monitoring relays

13.1.1

Sealable cover

Description
A sealable cover for use with all sizes (3RR2940) is available for the 3RR2 current
monitoring relays with digital and analog setting.
The sealable cover is used to protect the rotary buttons and the slide switch on the current
monitoring relay with analog setting or the buttons on the current monitoring relay with digital
setting against unauthorized or unintentional tampering.
Siemens also offers a sealable membrane (3TK2820-0AA00) for securing the current
monitoring relays with analog setting. The sealable membrane is fixed to the front of the
device and secures the rotary buttons and sliding switches against unintentional tampering.
Mounting
The diagram below shows an example mounting scenario based on mounting the sealable
cover on the 3RR21 current monitoring relay with analog setting, size S0. The mounting
sequence for the sealable cover for size S00 is exactly the same as that for size S0.
Table 13- 1 Mounting the sealable cover on the 3RR2 current monitoring relay
Step Instructions
1 Remove the key from the
cover.
2 Insert the key into the
designated opening.
3 Attach the hooks on the cover
to the openings on the
current monitoring relay.
4 Tilt the cover down.
5 Lock the cover with the key
connector to secure it against
unauthorized removal.
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
Figure
13
323