Technical data

1MRS751108-MUM
REX 521
61
Protection Relay
Technical Reference Manual, General
7. Ordering information
When ordering REX 521 protection relays, specify the following:
•Order number
• Quantity
• Additional language
• Optional Chinese front panel (1MRS121025)
Each protection relay has a specific order number that identifies the protection relay
type as well as the hardware and the software as described in Fig. 7.-1 below.
The order number is labelled on the marking strip on the front panel of the relay
delivered, for example, Order No: REX521GMHPSM01G.
A051925
Fig. 7.-1 Order number of REX 521
English is always available in REX 521. When ordering, the other additional
language must be defined according to the following table.
When ordering REX 521, the latest hardware and configuration revisions are
delivered unless otherwise specified.
Table 7.-1 Display language codes
Code Language combination
FI English-Finnish
SE English-Swedish
DE English-German
ES English-Spanish
FR English-French
PT English-Portuguese
PL English-Polish
ZH English-Chinese
When Chinese is selected, some of the IEC FB names are translated
into Chinese.
XX
REX521GMHPSM01G
Configuration revision
Configuration name: B01, B02, M01, M02, H01, H02, H03, H04, H05,
H06, H07, H08, H09, H50, H51
Rear communication: S=SPA/IEC/Modbus/DNP 3.0
L=SPA/IEC/Modbus/DNP 3.0/LON
Optical connectors for rear communication: P = plastic-fibre
G = glass-fibre
Power supply: H = PS_87H, L = PS_87L
Type of hardware: B = Basic, M = Medium, H = High, S = High sensor
Revision
Display language (see the table about display language codes)