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SE

Motor Protective Relay

SE

Solid-state Relay Provides Three Operating Functions in a Compact Package

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 Refer to Datasheet.
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
Case color Plug-in model: Munsell 5Y7/1
Panel-mount model: Munsell N1.5

Output Contact Capacity

Control power supply Contact Manual reset Automatic reset
100/110/120 VAC or
200/220/240 VAC
NO 3 A (cosΦ = 1.0)/
1.5 A (cosΦ = 0.3 to 0.4) at 240 VAC
3 A (cosΦ = 1.0)/
2 A (cosΦ = 0.4) at 240 VAC
NC 3 A (cosΦ = 1.0)/
2 A (cosΦ = 0.3 to 0.4) at 240 VAC
380/400/440 VAC NO 3 A (cosΦ = 1.0)/
1.5 A (cosΦ = 0.3 to 0.4) at 440 VAC
---
NC 3 A (cosΦ = 1.0)/
2 A (cosΦ = 0.3 to 0.4) at 440 VAC

Characteristics

Item Inverse type Instantaneous type
Overcurrent Operating value 100% of the current SV (SE-[][]EN)
115% of the current SV (SE-[][][]N)
Operating time
characteristics
Inverse time both at starting and during operation Fixed time at start-up and instantaneous during operation
Operating time For an overcurrent of 600%:
-Time scale × 1: 1 to 10 s
-Time scale × 4: 4 to 40 s
For an overcurrent of 200%:
-2.8 × t, where t is the time at 600%
-overcurrent. (time SV at max.: 10 s or 40 s)



In fixed time mode (start-up mode) with an
overcurrent of 600%:
-Time scale × 1: 1 to 10 s
-Time scale × 4: 4 to 40 s
In instantaneous mode:
-0.5 s max. at 140% overcurrent
Initial current in
start-up mode
--- Operates when the current is about 30% of the set current
Inertial characteristics At the min. current SV and max. time SV, will not
operate for 80% of the operating time for a 600%
overcurrent.
---
Open-phase Operating value: Less than 50% of the current SV (at open-phase)
Operating unbalance: At high sensitivity (H): 35 ±10%; At low sensitivity (L): 65 ±10%
(The unbalance for a max. 3-phase current equal to the current SV)
Operating time: At high sensitivity (H): 2 s max.; At low sensitivity (L): 3 ±1 s
(Open-phase current equal to the current SV)
Reverse-phase Operating value: 80% max. of the rated voltage
Operating time: 0.5 s max. at the rated voltage
Overcurrent SV accuracy Operating value: ±10% of max. current SV
Operating time: +10/-5% of max. time SV (at a time SV: 1), +10% of max. time SV (at a time SV: 2 to 10)
(start-up lock)
Influence of temperature
(overcurrent)
Operating value: ±5% for 0 to 40°C; ±10% for -10 to 50°C
Operating time: ±10% for 0 to 40°C; ±20% for -10 to 50°C (start-up lock)
Influence of frequency
(overcurrent)
Operating value: ±3% for a frequency fluctuation of ±5%
Operating time: ±5% for a frequency fluctuation of ±5% (start-up lock)
Influence of voltage
(overcurrent)
Operating value: ±3% for a voltage fluctuation of +10/-15%
Operating time: ±5% for a voltage fluctuation of +10/-15% (start-up lock)
Insulation resistance 10 MΩ min. between the entire electric circuits and the mounting panel
5 MΩ min. between contact circuits, or between contacts of same pole
Withstand voltage Refer to the table below.
Lighting impulse
withstand voltage
6000 V max. between the entire circuits and the mounting panel
4500 V max. between contact circuits, or across contacts
Waveform: 1.2/50 μs
Overload capacity Motor circuit: 20 times the current SV for 2 s, applied twice with a 1 min interval
Control voltage: 1.15 times the rated control voltage for 3 hrs
Life Expectancy 10,000 operations min. (non-conducting contacts)
Vibration resistance Malfunction: 10 to 55 Hz, 0.3-mm double amplitude each in 3 directions for 10 minutes
Destruction: 10 to 25 Hz, 2-mm double amplitude each in 3 directions for 2 hours
Shock resistance Malfunction: 98 m/s2 (approx. 10G) each in 3 directions
Destruction: 294 m/s2 (approx. 30G) each in 3 directions
Test button operation Operated quickly (without lighting the LED)
Ambient temperature Operating: -10 to 60°C (with no icing)
Storage: -25 to 65°C (with no icing)
Ambient humidity Operating: 35% to 85%
Altitude 2,000 m max.
Weight Approx. 170 to 230 g

Dielectric Strength

Test Area Control voltage
100/110/120 VAC 200/220/240 VAC 380/400/440 VAC
Between electric circuits and the mounting panel 2,000 VAC for 1 min 2,500 VAC for 1 min
Between contact circuits and other circuits 2,000 VAC for 1 min 2,500 VAC for 1 min
Between each pair of contacts 1,000 VAC for 1 min 1,000 VAC for 1 min