3RU2116-1FB0 (3.5-5 amps)
Siemens 3RU2116-1FB0 Overload Relay
Rated at 3.5-5 amps
(Fits Siemens 3RT201 Contactors)
Features and technical characteristics
- 1 NO & 1 NC auxiliary contacts
- Manual/automatic RESET
- Trip indicator
- STOP button
- Test function
- Sealable cover
3RU21 overload relays provide overload protection for three-phase inductive motors with
rated currents of up to 100A (75HP, AC-3,480V).
They are used in conjunction with
3RT20 contactors to form motor starters.
The 3RU21 overload relays are designed in
accordance with trip class 10, i.e. trips in less
than 10 seconds at 6 times the trip current setting (FLA).
The 3RU21 thermal overload relay is set by adjusting to the rated motor current with a setting dial.
The range on the setting dial is calibrated in amperes.