Schneider Electric Type S NEMA Size 0 & 1 Motor Starters User Guide

Schneider Electric Type S NEMA Size 0 & 1 Motor Starters User Guide

NEMA Size 0 & 1 Starters Class 8536, Type S with Melting Alloy Overload Relay
Suitable for use on a circuit capable of delivering not more than 5000 rms symmetrical amperes, 600 V maximum.

WARNING
LOSS OF OVERLOAD PROTECTION
Replace overload thermal unit if burnout occurs to protect against fire and shock.

Failure to follow this instruction can result in death, serious injury, or equipment damage.

Additional information in instruction bulletins 30072-013-09 (Size 0) and 30072-013-10 (Size 1).

CONTROL WIRING

Control circuit conductors must be protected against over current in accordance with applicable electrical codes. Fuseholder Kits Class 9999 Types SF-4 and SFR-4 are available to allow compliance.

3-WIRE CONTROL (MOMENTARY CONTACT)
PUSH BUTTON STATION

2-WIRE CONTROL (MAINTAINED CONTACT)
SELECTOR SWITCH STATION
Lead removed from Terminal 3 to coil on controller

• Float switch, pressure switch or other maintained contact device

Maintained contact device not part of controller

POWER WIRING

Power lugs suitable for copper conductors only. Sized for 60 °C wire ampacity, rated 60 °C minimum or sized for 75 °C wire ampacity, rated 75 °C minimum

Lug torque requirements : line and load: 20 lb-in (2.3 N•m).

3-PHASE, 3-WIRE SYSTEM
WIRE D OMITTED ON FORM CS

OVERLOAD RELAY THERMAL UNITS

For continuous rated motors having service factors of 1.15 to 1.25, select thermal units directly from table using 100% of full load current (FLC) shown on motor nameplate. For continuous rated motors having a service factor of 1.0, select thermal units from table using 90% of FLC shown on motor nameplate

Branch circuit fuse rating must comply with applicable electrical codes and must not exceed the maximum fuse rating shown opposite the thermal unit selected. Fuses may need to be of the time delay type to permit motor starting. Class K5 or Class R fuses are recommended

Non-time delay fuses whose rating does not exceed 300% of motor FLC may also be used. Maximum allowable thermal magnetic (inverse time) circuit breaker rating is 225% of motor FLC unless a lower rating is required by applicable electrical codes. For FLC below 6.67 A, a 15 A circuit breaker may be used.

Motor
FLC (A)| Thermal
Unit No.| Maximum
Fuse Rating (A)| Motor
FLC (A)| Thermal
Unit No.| Maximum
Fuse Rating (A)|
---|---|---|---|---|---|---
0.28-0.30| 13 0.44| 0.6| 3.99-4.48| B 6.90| 8|
0.31-0.34| B 0.51| 0.6| 4.49-4.93| B 7.70| 10|
0.35-0.37| B 0.57| 0.6| 4.94-5.21| B 8.20| 10|
0.38-0.44| B 0.63| 0.8| 5.22-5.84| B 9.10| 10|
0.45-0.53| B 0.71| 1| 5.85-6.67| 13 10.2| 12|
0.54-0.59| B 0.81| 1.125| 6.68-7.54| B 11.5| 15|
0.60-0.64| B 0.92| 1.25| 7.55-8.14| B 12.8| 15|
0.65-0.72| B 1.03| 1.4| 8.15-8.72| B 14| 17.5|
0.73-0.80| B 1.16| 1.6| 8.73-9.66| B 15.5| 17.5|
0.81-0.90| 13 1.30| 1.8| 9.67-10.5| B 17.5| 20|
0.91-1.03| B 1.45| 2| 10.6-11.3| B 19.5| 20|
1.04-1.14| B 1.67| 2.25| | | 600 V Max.| 250 V Max.|
1.15-1.27
1.28-1.43| 13 1.88
B 2.10| 2.5
2.8| 11.4-12.0| B 22
20| 25|
3.2| Following Selections for Size Only|
1.44-1.62| B 2.40
1.63-1.77| B 2.65| 3.5| 11.4-12.7| B 22| 25| 25|
1.78-1.97| B 3.00| 4| 12.8-14.1| B 25| 25| 25|
1.98-2.32| B 3.30| 4| 14.2-15.9| B 28.0| 30| 30|
2.33-2.51| B 3.70| 5| 16.0-17.5| B 32| 30| 35|
2.52-2.99| B 4.15| 5.6| 17.6-19.7| B 36| 30| 35|
3.00-3.42| B 4.85| 6.25| 19.8-21.9| 13 40| 30| 40|
3.43-3.75| B 5.50| 7| 22.0-24.4| B 45| 30| 40|
3.76-3.98| B 6.25| 8| 24.5-26.0| B 50| 30| 40|

Trip current rating in a 40 °C (104 °F) ambient temperature is 1.25 times the minimum FLC shown for the thermal unit selected. Instructions given above assume that the motor and the controller are located in approximately the same ambient temperature. For other conditions, consult Schneider Electric.

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