SE-K2EN Omron, SE-K2EN Datasheet - Page 6

• Manufacturer Part Number: SE-K2EN
• Description: RELAY MOTOR PROTECT 200/220/240V
• Manufacturer: Omron
• Series: SEr

Specifications of SE-K2EN

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SEK2EN

Selecting the Current Converter
The current requirements of the motor determine the current range of
the Motor Protective Relay, and whether the SET-3A or SET-3B Cur-
rent Converter should be used, as shown in the following table.
Note: 1. Connect to the secondary of a commercial current transformer for motors exceeding 37 kW.
Installation
■ Internal Circuit
Note: 1. The numbers in circles are the terminal numbers for Plug-in Models. The letters in parentheses are the terminal markings on Panel-
Inverse Type
0.2
0.4
0.75
Note 1
1.5
2.2
3.7
5.5
7.5
11
15
19
22
30
37
3-phase 50/60 Hz
R
kW
2. Connect a commercial current transformer when using high-voltage motors or low-voltage high-capacity motors.
2. You cannot use reverse-phase protection if you use control power with single-phase operation. Connect to terminals 1 and 2 for single-
3. The AND circuit in the internal circuits contains a time setting circuit.
Motor
M
mounting Models.
phase operation. Also, make sure to turn OFF the reverse-phase setting on the function setting switches. An error will occur if the SE is
used with the reverse-phase setting turned ON during single-phase operation. Reverse-phase is detected in order of phase1, phase2
and phase3 of control power.
S
Motor specifications
T
0.25
0.5
1
2
3
5
7.5
10
15
20
25
30
40
50
SET-3
Current Converter
HP
1.4
2.3
3.8
5
6.8
9.5
15
22
30
43
57
72
82
111
135
+
−
A
SE Motor Protective Relay
(C+)
(C−)
7
8
1 to 2.5
2 to 5
4 to 10
8 to 20
16 to 40
32 to 80
64 to 160
Current range
Motor Protective Relay
OPEN
OC
OC: overcurrent LED
OPEN: open-phase LED
RVS: reverse-phase LED
0.25
0.5
1
2
4
8
16
To all circuits
Decal No.
Test
Output
relay
X
RVS
8
4
2
1
X/C
Passes
(Tb)
(Tc)
(Ta)
(W)
(U)
(V)
Control
voltage
4
5
6
1
2
3
Current Converter
20
20
20
20
40
80
Fixed
Tap settings
Instantaneous Type
(Start-up Lock)
(C+)
(C−)
7
8
SET-3A
SET-3B
OPEN
Model
SE
OC
6