Over- and Undercurrent Relay
SP 9277CT

. Over- and undercurrent detection in single phase or 3-phase voltage systems
. For industrial and railway applications

Features
. According to IEC/EN 60 255-1
. IP 9277, SP 9277, SP 9277CT: 3-phase
IL 9277, SL 9277, SL 9277CT: singele phase
. Detects over- and undercurrent
. Measuring ranges from 0.1 ... 15 A
. With built in current transformer for 0.5 ... 100 A
. IL 9277, SL 9277 with 4 programmable ranges
. Settable 0.1 ... 1 IN
. Separate setting for over- and undercurrent
. Fixed hysteresis approx. 4 %
. Settable time delay
. IP 9277, SP 9277 with separate settable time delay for over- and undercurrent
. De-energized on trip
. LED indicators for over-, under- and normal current
. Auxiliary supply and measuring input galvanic separated
. IL 9277, SL 9277 with one output relay for over- and undercurrent
. IP 9277, SP 9277 with separate output relays for over- and undercurrent
. Optionally energized on trip
. Devices available in 2 enclosure versions:
- I-model, e.g. IL _ _ _ _, depth 61 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43 880
- S-model, e.g. SL _ _ _ _, depth 100 mm with terminals at the top for cabinets with mounting plate and cable duct
. DIN rail or screw mounting
. Width IL 9277, SL 9277, SL 9277CT: 35 mm
IP 9277, SP 9277, SP 9277CT: 70 mm

Technical specifications
Width: 70mm
Operate delay: Yes
Enclosure design: Switch cabinet
1- / 3-phase: 3
Output contacts: 2 x 2 C/O contacts
Auxiliary voltage: AC, AC/DC
Type: SP 9277CT
Measuring range: AC 0,5 - 100A


Manufacturer: E. Dold & Söhne GmbH & Co. KG
Type: SP9277.39CT AC220-240V 10-100A
Art. No.: 0059427