Technical Data · Publication 193-TD010 · Rockwell Automation

193-K and 193-T1 Bimetallic Overload Relay Specifications

This technical data sheet covers the Allen-Bradley Bulletin 193-K and 193-T1 bimetallic overload relays. It provides general specifications, environmental ratings, control and main circuit data, trip characteristics, and approximate dimensions for both product families. The 193-K covers a rated current range of 0.1 to 12.5 A. The 193-T1 extends coverage up to 90 A. Both relays support automatic and manual reset, have a fixed Trip Class 10, and are rated for 600V nominal operating voltage.

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0.1…12.5 A Rated Current Range (193-K)

0.1…90 A Rated Current Range (193-T1)

600V AC Operating Voltage

Class 10 Trip Class

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Specifications

Product Overview (193-K and 193-T1)

Overload Type	Bimetallic
Rated Current (193-K)	0.1…12.5 A
Rated Current (193-T1)	0.1…90 A
Operating Voltage, Nominal	600V
Trip Class (Fixed)	10
Reset Type	Automatic and Manual
Adjustment Range	1.5:1
Phase Loss	Normal Sensing
Ambient Temperature Compensated	Yes (193-K and 193-T1)
N.C. Trip Contact / N.O. Alarm Contact	Yes (193-K and 193-T1)
VFD Compatible	Yes (193-K and 193-T1)

193-K Main Circuit Specifications

Rated Isolation Voltage Ui	690V
Rated Impulse Strength Uimp	6 kV
Rated Operating Voltage Ue (IEC/UL)	690V AC / 600V AC
Terminal Screws	M3.5
Wire Range (fine stranded w/ ferrule)	2 x (1.5…4) mm²
Wire Range (solid or coarse stranded)	2 x (1.5…4) mm² / 2 x (16…12) AWG
Recommended Torque	1.2 N•m (10.6 lb•in)

193-K Control Circuit Specifications

Rated Isolation Voltage Ui	690V AC
Rated Impulse Strength Uimp	4 kV AC
Rated Operating Voltage Ue (IEC/UL)	690V AC / 600V AC
Rating Designation	A600/Q300
AC-15 Ie at 24V	4 A
AC-15 Ie at 240V	2 A
AC-15 Ie at 400V	1.6 A
AC-15 Ie at 690V	0.15 A
DC-13 Ie at 24V	2 A
DC-13 Ie at 110V	0.4 A
DC-13 Ie at 220V	0.25 A
DC-13 Ie at 440V	0.08 A
Thermal Current Ithe	5 A
Short-circuit withstand, fuse gG	6 A
Contact Reliability	15V, 2 mA

193-K Environmental Ratings

Storage Temperature	-55…+80 °C (-67…+176 °F)
Operating Temperature	-20…+60 °C (-4…+140 °F)
Humidity (Operating)	5…95% Non-condensing
Vibration (IEC/EN 60068-2-6)	3G
Shock (IEC/EN 60068-2-27)	30 G
Max. Altitude	2000 m
Pollution Degree	3
Degree of Protection	IP2X
Trip Rating	120% FLA
Trip Class	IEC: 10A, UL: 10
Power Dissipation (up to 0.4 A)	7 W
Power Dissipation (0.5…12.5 A)	6 W
Approximate Weight (unpackaged)	0.115 kg (0.25 lb)

193-T1 Main Circuit Specifications

Rated Isolation Voltage Ui	690V AC
Rated Impulse Withstand Voltage Uimp (main poles)	6 kV AC
Rated Impulse Withstand Voltage Uimp (aux circuits)	4 kV AC
Rated Operating Voltage Ue (IEC)	690V AC / 440V DC
Rated Operating Voltage Ue (UL, CSA)	600V AC
Rated Frequencies	50/60 Hz
Operational Frequencies	DC…400 Hz
Power Dissipation (up to 0.4 A)	7 W
Power Dissipation (0.5…36 A, 193-T1A/T1B)	6 W
Power Dissipation (38 A, 193-T1A/T1B)	12 W
Power Dissipation (25…47 A, 193-T1C)	12 W
Power Dissipation (47…90 A, 193-T1D)	18 W

193-T1 General Specifications

Type of Overload Relay	Bimetallic, Ambient Compensated, Phase Loss Sensitive
Trip Rating (ultimate tripping current)	120% FLA
Phase Loss Sensitivity Trip Rating	115% FLA
Trip Class (IEC/EN 60947-4-1, 193-T1A/-T1B)	10A
Trip Class (IEC/EN 60947-4-1, 193-T1C/-T1D)	10
Trip Class (UL)	10
Reset Mode	Automatic or Manual
Compensation Temperature Range	-20…+60 °C (-4…+140 °F)
Storage Temperature Range	-55…+80 °C (-67…+176 °F)
Operating Temperature Range	-20…+60 °C (-4…+140 °F)
Air Moisture (Storage/Operating)	5…95% rel. humidity, non-condensing
Vibration (IEC/EN 60068-2-6), service	3g
Shock (IEC/EN 60068-2-27), transport	30 g
Max. Altitude	2000 m
Pollution Degree	3
Degree of Protection (with wires connected)	IP2X
Weight (193-T1A/T1B, 0.16…25 A)	0.115 kg
Weight (193-T1B, 30…38 A)	0.155 kg
Weight (193-T1C, 25…47 A)	0.330 kg
Weight (193-T1D, 47…90 A)	0.360 kg
Weight (193-T1….P, 47…90 A)	0.415 kg

Catalog Number Format

How to read an Allen-Bradley 193 catalog number. Each position encodes a specific configuration attribute.

Position

Meaning

Example

Bulletin

Product family

193-K or 193-T1

193-T1 size letter (A, B, C, D)

Relay size; current ranges as listed in the PDF weight table

193-T1A/T1B (0.16…25 A), 193-T1B (30…38 A), 193-T1C (25…47 A), 193-T1D (47…90 A)

Certifications & Compliance

CE Marked (193-K) cULus Listed, File No. E33916, Guide NKCR, NKCR7 (193-K) cULus, File No. E33916, Guide NKCR, NKCR7 (193-T1) CE Marked (193-T1)

Document Contents

Full PDF covers the following topics in detail:

Product Overview
Standards Compliance and Certifications
General Specifications, 193-K (main circuits, control circuits, environmental ratings, trip characteristics)
Approximate Dimensions, 193-K
General Specifications, 193-T1 (main and control circuits, terminations, 193-T1R remote reset, circuit diagrams, trip characteristics)
Approximate Dimensions, 193-T1 (relays, 193-T1APM DIN rail/panel mounting adapter, 193-RA3 reset adapter, 193-T1R remote reset solenoid)

Frequently Asked Questions

What is the current range covered by the 193-K and 193-T1 overload relays?

The 193-K covers a rated current range of 0.1 to 12.5 A. The 193-T1 extends coverage from 0.1 to 90 A across its four frame sizes (T1A, T1B, T1C, T1D).

What trip class do the 193-K and 193-T1 relays use?

Both the 193-K and 193-T1 use a fixed Trip Class 10. The 193-K is listed as IEC 10A and UL 10. The 193-T1A and 193-T1B are Class 10A per IEC/EN 60947-4-1, while 193-T1C and 193-T1D are Class 10. Under UL, all 193-T1 variants are Class 10.

What reset modes are available on these relays?

Both the 193-K and 193-T1 support automatic and manual reset. For the 193-T1, the PDF also documents the 193-T1R remote reset solenoid and the 193-RA3 reset adapter.

Are the 193-K and 193-T1 relays compatible with variable frequency drives?

Yes. The product overview table marks both the 193-K and the 193-T1 as Variable Frequency Drive (VFD) compatible.

What is the trip rating for these bimetallic overload relays?

Both the 193-K and 193-T1 have an ultimate tripping current (trip rating) of 120% of full-load amperes (FLA). For the 193-T1, the phase loss sensitivity trip rating is 115% FLA.

What certifications do the 193-K and 193-T1 carry?

The 193-K is CE Marked and cULus Listed (File No. E33916, Guide NKCR, NKCR7). The 193-T1 carries the same cULus listing (File No. E33916, Guide NKCR, NKCR7) and is also CE Marked.

What standards do these relays comply with?

Both the 193-K and 193-T1 comply with IEC/EN 60947-1, -4-1, and -5-1, as well as UL 508 and CSA C22.2 No. 14.

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