Technical data - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 01.07.2024

REX610 Technical Manual
Table 1. Dimensions

Description

Value

Width

Frame

149.5 mm (5.8858 in)

Case

127.5 mm (5.0196 in)

Height

Frame

159.5 mm (6.2795 in)

Case

155.5 mm (6.1220 in)

Depth

202.8 mm (163.6 mm + 39.2 mm) (7.9842 in)

Weight

Protection relay with the four separate connectors

2.5 kg (5.5 lbs)
Table 2. Power supply

Description

Value

Nominal auxiliary voltage Un

24...250
(V DC)

48...240 ~ (V AC)

Maximum interruption time in the auxiliary DC voltage without resetting the relay

50 ms at Un

Auxiliary voltage variation

85...110% (AC)

80...120% (DC)

Start-up threshold

Un (minimum)

Burden of auxiliary voltage supply under quiescent (Pq)/operating condition

9 W (Pq)

19 W/40 VA (Pmax)

Ripple in the DC auxiliary voltage

<15%

Fuse type

4A 250 ~ (V AC) fast (+UL DC rated)
Table 3. Energizing inputs

Description

Value

Rated frequency

50/60 Hz

Current inputs

Rated current, In

 1 A / 5 A

Thermal withstand:

Continuous

20 A

Thermal withstand

For 1 s

500 A

Dynamic current withstand

Half sine wave

1250 A

Input impedance

<5 mΩ

Voltage inputs

Rated voltage

57...250 ~ (V AC)

Voltage withstand

Continuous

500 ~ (V AC)

Voltage withstand

For 10 s

750 ~ (V AC)

Burden at rated voltage

<0.5 VA
Table 4. Binary inputs

Description

Value

Operating range

24...250
(V DC)

48...240 ~ (V AC)

Rated voltage

80...120% (DC)

85...110% (AC)

Current drain

Typically 1.6...1.9 mA

<2.5 mA

Power consumption

<0.5 W

Threshold voltage, pick-up

Programmable

18...176
(V DC)

38...168 ~ (V AC)

Threshold voltage, drop-off

Programmable

16...176
(V DC)

34...168 ~ (V AC)

Burden

<0.5 W / 2 VA
CAUTION: Adjust the binary input threshold voltage correctly. It is recommended to set the threshold voltage to 70% of the nominal auxiliary voltage. The factory default is 18 V to ensure the binary inputs’ operation regardless of the auxiliary voltage used (24, 48, 60, 110, 125, 220 or 250 V DC). However, the default value is not optimal for the higher auxiliary voltages. The binary input threshold voltage should be set as high as possible to prevent any inadvertent activation of the binary inputs due to possible external disturbances. At the same time, the threshold should be set so that the correct operation is not jeopardized in case of undervoltage of the auxiliary voltage.
Table 5. Signal output relays (SO1)

Description

Value

Rated voltage

250 V AC/DC

Continuous contact carry current

5 A

Mechanical endurance

Unloaded operation

10000 cycles

Electrical endurance

Closing operations

1000 cycles

Opening operations

1000 cycles

Making limits

Limiting making capacity (inductive)

300 W at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Make and carry (resistive) for

3.0 s

15 A (3 s On, 15 Off)

Make and carry (resistive) for

0.5 s

30 A (0.5 s On, 15 s Off)

Breaking limits

Limiting breaking capacity ≤48 V

1 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Limiting breaking capacity 110 V

0.25 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Limiting breaking capacity 220 V

0.15 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Minimum contact load

100 mA
Table 6. IRF and signaling outputs other than SO1

Description

Value

Rated voltage

250 V AC/DC

Continuous contact carry current

5 A

Mechanical endurance

Unloaded operation

10000 cycles

Electrical endurance

Closing operations

1000 cycles

Opening operations

1000 cycles

Making limits

Limiting making capacity (inductive)

300 W at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Make and carry (resistive) for

3.0 s

10 A (3 s On, 15 Off)

Make and carry (resistive) for

0.5 s

15 A (0.5 s On, 15 s Off)

Breaking limits

Limiting breaking capacity ≤48 V

1 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Limiting breaking capacity 110 V

0.25 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Limiting breaking capacity 220 V

0.15 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Minimum contact load

10 mA
Table 7. Tripping output relays (Double-pole power output relays with TCS function)

Description

Value

Rated voltage

250 V AC/DC

Continuous contact carry current

8 A

Mechanical endurance

Unloaded operation

10000 cycles

Electrical endurance

Closing operations

1000 cycles

Opening operations

1000 cycles

Making limits

Limiting making capacity (inductive)

1000 W at L/R = 40 ms for DC

or p.f. = 0.4 for AC

Make and carry (resistive) for

3.0 s

15 A (3 s On, 15 Off)

Make and carry (resistive) for

0.5 s

30 A (0.5 s On, 15 s Off)

Breaking limits

Limiting breaking capacity ≤48 V (inductive), two contacts connected in series

5 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Limiting breaking capacity 110 V (inductive), two contacts connected in series

3 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Limiting breaking capacity 220 V (inductive), two contacts connected in series

1 A at L/R = 40 ms for DC or

p.f. = 0.4 for AC

Minimum contact load

100 mA
Table 8. Serial interface

Type

Location

Connector

RS-485

Rear

1=B, 2=A, 3=GND,

4=capacitive shield
Table 9. USB interface, HMI

Type

Location

Connector

Rate

USB, micro B

Front

USB 1.x / USB 2.0

compatible

240 Mbits/s (max.)
Table 10. Ethernet interface

Cable

Protocol

Location

Rate

Standard Ethernet CAT 5 STP cable with RJ-45 connector (shielded)

TCP/IP

Rear

100 Mbits/s
Table 11. ARC interfaces

Description

Value
Normal service temperature range of the lens -40...+100ºC
Maximum service temperature range of the lens, max. 1 hour +140ºC
Minimum permissible bending radius of the connection fiber 100 mm
Technical specification of the ARC module:
ARC detection >30 μs
ARC detection range (threshold setting) >25 dB
Fiber break detection (heartbeat) 3 s
Table 12. Degree of protection of the protection relay

Description

Value

Front side

IP 54

Left and right side

IP 20

Top and bottom

IP 20

Case inside 2

IP 20
Table 13. Environmental conditions

Description

Value

Operating temperature range

-40...+70ºC UL:+55ºC

Short-time service temperature range

-40...+85ºC

Relative humidity

5...95% (EN60255)

Atmospheric pressure

86...106 kPa (test reference/EN60255)

Altitude

<2000 m (EN60255)

Transport and storage temperature range

-40...+85ºC
2 Plug-in unit removed