Bulletin 193-M Bimetallic Overload Relays
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Bulletin 193-M — Bimetallic Overload Relays
- Phase Failure Sensitivity
- Temperature Compensation
- Optional Auxiliary Contact (1 N.O. Contact)
- Manual Reset/Stop Button
- Built-in Connection Between N.C. Trip Contact (95) and Contactor
Coil Terminal (A2)
- “Trip Free” Construction
- Trip Indicator
Bulletin 193-M thermal overload relays are designed for use with Bulletin 100-M contactors and Bulletin 104-M reversing contactors. These class 10 ambient compensated thermal overload relays use integral heater elements; therefore, additional heater elements are not required.
The trip setting is adjustable over the listed motor full load current range. The overload relay can be operated in a manual reset mode only. An isolated normally open contact is optional.
Standards Compliance and Certifications
Standards Compliance
IEC 60947-1
IEC 60947-4 Type 2
Coordination
Certifications
UL Listed
CSA Certified
CE
Product Selection
| For Use With— | Setting Range [A] | Max. current rating backup gL fuse [A] IEC Coordination Type |
Cat. No. | Price € | |
| Type 1 | Type 2 | ||||
| 100-M05…M12 | 0.10…0.15 | 25 | 1 | 193-M-A15 | |
| 0.15…0.23 | 25 | 1 | 193-M-A23 | ||
| 0.23…0.35 | 25 | 2 | 193-M-A35 | ||
| 0.35…0.55 | 25 | 2 | 193-M-A55 | ||
| 0.55…0.8 | 25 | 2 | 193-M-A80 | ||
| 0.8…1.2 | 25 | 4 | 193-M-B12 | ||
| 1.2…1.8 | 25 | 4 | 193-M-B18 | ||
| 1.8…2.7 | 25 | 6 | 193-M-B27 | ||
| 2.7…4 | 25 | 10 | 193-M-B40 | ||
| 4…6 | 25 | 16 | 193-M-B60 | ||
| 100-M09…M12 | 6…7.7 | 25 | 20 | 193-M-B77 | |
| 7.5…9 | 25 | 20 | 193-M-B90 | ||
| 100-M12 | 8.8…10.5 | 25 | — | 193-M-C10 | |
| 10.4…12.5 | 25 | — | 193-M-C12 | ||
| 193-M Overload Relay (Optional N.O. Auxiliary Contact) | — | — | — | 193-M-F10 | |
Specifications
Thermal Overload Relays
Circuit Diagrams
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Trip Characteristics
- Time/current characteristics of thermal overload relay
- Mean value of tolerance bands 3-phase heated. Full line curves relate to cold relay. Dashed curves relate to relay at operating temperature (at set current load).
- Tolerance trip time ±20%, ±10% for current.
- Function limits and temperature compensation from –25 °C…+75 °C.
- Tripping limit specified in IEC 60947-4 for –5 °C…+40 °C are included in the –20 °C…60 °C range.
- Specified points relative to operating temperature condition; in compliance with IEC 60947-4.
- Mean value of tolerance bands 3-phase heated. Full line curves relate to cold relay. Dashed curves relate to relay at operating temperature (at set current load).
- Single phasing (phase failure):
- Trip limits 1.05…1.25 of set current IeF (1.05…1.32 IeF is permissible according to IEC 60947-4).
- For motors up to 10 kW, the 2-phase trip at 1.25 IeF max. guarantees heat buildup limitation to the value that occurs in the event of a 3-phase trip at 1.2 IeF.
- Trip limits 1.05…1.25 of set current IeF (1.05…1.32 IeF is permissible according to IEC 60947-4).
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| Main Circuit | |||
| Rated Insulation Voltage | |||
| IEC cULus |
[V] [V] |
500 600 |
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| Max. Wire Size | |||
| IEC cULus |
Fine Stranded w/ Ferrule Coarse Stranded or Solid Stranded or Solid |
[mm2] [mm2] [AWG] |
2 x (1…2.5) 2 x (1.5…4) 2 x (14…10) |
| Recommended Torque |
[Nm] [lb•in] |
1.4…2.0 12…20 |
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| Control Circuit | |||
| Rated Insulation Voltage | |||
| IEC cULus |
[V] [V] |
500 AC 600 AC |
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| Rated Operating Current | |||
| AC-12 AC-15 220…240V 380…415 |
[A] [A] [A] |
4 3 1.6 |
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| Max. Wire Size | |||
| IEC cULus |
Fine Stranded w/ Ferrule Coarse Stranded or Solid Stranded or Solid |
[mm2] [mm2] [AWG] |
2 x (0.75…2.5) 2 x (0.75…4) 2 x (18…14) |
| Recommended Torque |
[Nm] [lb•in] |
1.2 11 |
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| General | |||
| Standards Compliance | IEC60947, DIN VDE 0660, UL508, CSA22.2, No. 14 |
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| Approvals | CE, cULus | ||
| Ambient Temperature | |||
| Open Enclosed |
-20…+60 °C (-4…+140 °F) -20…+40 °C (-4…+104 °F) |
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Approximate Dimensions
Approximate Dimensions — 193-M on 100-M Contactor
Dimensions are in millimeters. Dimensions are not intended to be used for manufacturing purposes.
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