Motor Protective Relay
SE
CSM_SE_DS_E_8_2
Solid-state Relay Provides Three Operating
Functions in a Compact Package
Prevents burnouts in 3-phase induction motors due to overcurrent,
open-phase, or reverse-phase.
LEDs indicate operation of the selected operating function.
Wide setting ranges: current: 1 to 160 A; operating time: 1 to 40 s.
Protects the motor from reversing without starting it.
The SE cannot be used with circuits with
distorted waveforms, inverter circuits, or
capacitor loads.
Model Number Structure
Model Number Legend
SE-K@@@@@N
12 3 4 5 6 7 8
1. Basic model name 5. Control voltage
SE: Motor Protective Relay 1: 100/110/120 VAC
2. Protective functions 2: 200/220/240 VAC
K: Three possible operating functions: overcurrent, open- 4: 380/400/440 VAC
phase, or reverse-phase protection
6. Reset method
3. Operating time characteristics for overload element
None: Manual reset
Q: Instantaneous type: Fixed time at starting and instanta-
A: Automatic reset
neous during operation
7. Operating value
None:Inverse type: Inverse operation both at starting and during
None: 115% of the current SV
operation
E: 100% of the current SV
4. Case
8. Product history
P: Plug-in type
N: New version
None: Flush mount type
Note: A 3-phase transformer (sold separately) must be used to operate Plug-in Relays at 380, 400, 415, or 440 VAC. Drop the primary voltage
(380 to 440 VAC) to a 200-VAC secondary voltage before applying it to the SE-KP2EN or SE-KQP2EN.
Ordering Information
SE-@EN
Overcurrent operating value: 100% of the current SV.
Terminal/mounting Control voltage Reset Model
Inverse type Instantaneous type
(See note.)
Plug-in terminal/DIN 100/110/120 VAC Manual SE-KP1EN SE-KQP1EN
rail via socket
200/220/240 VAC SE-KP2EN SE-KQP2EN
Screw terminal/flush 100/110/120 VAC SE-K1EN SE-KQ1EN
mount
200/220/240 VAC SE-K2EN SE-KQ2EN
380/400/440 VAC SE-K4EN SE-KQ4EN
Note: With start-up lock: fixed time-limit on start-up, instantaneous thereafter.
Plug-in type requires a socket (8PFA1) which is sold separately.
Refer to page 9 for the mounting conditions.
1SE
SE-@@N
Overcurrent operating value: 115% of current SV.
Control voltage Reset Model
Inverse type Instantaneous type (See note 1.)
100/110 120 VAC Manual SE-KP1N SE-KQP1N
Automatic SE-KP1AN SE-KQP1AN
200/220/240 VAC Manual SE-KP2N SE-KQP2N
Automatic SE-KP2AN SE-KQP2AN
100/110/120 VAC Manual SE-K1N SE-KQ1N
Automatic SE-K1AN SE-KQ1AN
200/220/240 VAC Manual SE-K2N SE-KQ2N
Automatic SE-K2AN SE-KQ2AN
380/400/440 VAC Manual SE-K4N SE-KQ4N
Automatic --- ---
Note: 1. With start-up lock: fixed time-limit on start-up, instantaneous thereafter.
2. The operating value for the overload detection function of the SE-@@N is 115% of the current SV.
Accessories (Order Separately)
Current Converters 3-phase Transformer
Specify the primary voltage when ordering.
Model Current range
Only one SE relay can be connected.
SET-3A 1 to 80 A
SET-3B 64 to 160 A Model Voltage specification Secondary power
consumption
DIN rail socket
SE-PT400 Primary side 380 to 480 V 7VA
(wide power
8PFA1
supply range)
Secondary side 190 to 240 V
(wide power
supply range)
Adapter
Model
SE-F7AD
This Adapter is used to replace existing flush mount models with new
models.
Specifications
Ratings
Motor circuit Voltage: 500 VAC max. 3-phase (primary voltage at SET current converter)
Current: 1 to 80 A or 64 to 160 A 3-phase (primary current at SET current converter)
Power supply circuit Voltage: 100/110/120 VAC, 200/220/240 VAC, or 380/400/440 VAC 3-phase
(treat as a single phase voltage when the reverse-phase function is not needed)
Voltage fluctuation: +10/15% max. of the rated voltage (+10/50% max. for open-phase function)
Frequency: 50/60 Hz 5%
Current SV range See table of Current Converter.
Output relay contact Configuration: SPDT
Capacity: Refer to the table below.
Power consumption 100/110/120 VAC: approx. 3.5 VA; 200/220/240 VAC: approx. 7 VA; 380/400/440 VAC: approx. 11 VA
Plug-in model: Munsell 5Y7/1
Case color
Panel-mount model: Munsell N1.5
Output Contact Capacity
Control power supply Contact Manual reset Automatic reset
100/110/120 VAC or NO 3 A (cos = 1.0)/1.5 A (cos = 0.3 to 0.4) at 240 VAC 3 A (cos = 1.0)/2 A (cos = 0.4) at 240 VAC
200/220/240 VAC
NC 3 A (cos = 1.0)/2 A (cos = 0.3 to 0.4) at 240 VAC
380/400/440 VAC NO 3 A (cos = 1.0)/1.5 A (cos = 0.3 to 0.4) at 440 VAC ---
NC 3 A (cos = 1.0)/2 A (cos = 0.3 to 0.4) at 440 VAC
2