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with separate BT030 unit (for tem porary connections),
2. Double protection function, with simultaneous reading from two sensors (PR123 Restricted Earth fault).
F tio PR121 PR122 PR123
C urrent ctio (L, S
A dditional protections (U, OT) S
Voltage protections (UV, OV, RV, RP, UF, OF) <4> S
O ther protections (D, S2, Double protection S
Harm onics analysis S
Tem perature protection S
MCR protection S
Therm ory S
Local bus separate ilia its S
W ire ica tio (RS485) <3> <3>
Radio com unication (wireless Bluetooth) I1) I1,2) I1,2)
Data Logger S
C patibility ith SD. Extended neutral selection. Cause trip memorized even self-powered mode (all relays). Analysis the 40th harmonic.
Every operational requirement now met thanks the different performance levels the new relays and the additional odules that can
be fitted inside them (PR120/V, PR120/K, PR120/D-M, PR120/D-BT).
Notes:
1. Double protection (PR123).Testbus S
C patibility ith PR010/T S
Dual setting S
PR120/V easuring (internal voltages module) S
PR120/K Signalling (internal signalling module) O
PR120/D-M Com (internal communication module) O
PR120/D-BT L-Com (internal Bluetooth communication module) O
R sid rre tio O
PR021/K (separate signalling unit) O
HMI030 (separate graphics interface) O
PR030/B (separate power supply unit) S
BT030 (separate Bluetooth communication unit) O
Key:
S standard function/unit,
O optional function/unit,
- function/unit unavailable. Four power outputs fully-configurable the customer terms status, delayand type (with PR120/K).
12.
10.
14.
3.
The main features and improvements the new relay PR12x with respect the earlier PR11x are (depending the combination relay-
modules):
1. Wireless Bluetooth connection PDA and/or (with PR120/D-BT BT030).
13.
15. Input can combined with actions selectable the user (with PR120/K).5%) and numerous other functions.
These are called PR121, PR122 and PR123, and they substitute the previous range PR111, PR112 and PR113. PR121 with serial link for separate PR021/K and HMI030 module.
8.
Model 2234 Apparatus Scale
L 2778
Doc-Na 1SDH000460R0002
Page No.
The new protection releases integrate all the functions their predecessors, adding new and interesting technical features that are useful for
satisfying every current and future system installation need.
6. High-performance data logger with analogue signals and digital signals, which can synchronized with hundreds events/situations
of the user's choice.
17.
11.
2. High current reading accuracy (1.
9.
A table can best illustrate the technical features and the mix and atchability the three relays. The PR120/V odule for measuring line voltages 690 integrated the relay, making separate voltage transformer unnecessary.
16. Freely available software for relay testing and maintenance.
5.
4. Continuous control the connection the current sensors and trip coil (all relays). with PR120/D-M module,
4. Relay powered even with the circuit-breaker open, using the busbar voltages (with PR120/V). with internal PR120/D-BT module,
3.Pocket S
C patibility ith SD. with PR120/V module.
29/158
. Date and tim "real tim (all relays).11.
7. Protection releases General notes
Emax, the range ABB air circuit-breakers, now has new range electronic relays. New residual-current function (Rc)
