Catalogs > Industrial Controls Catalog > Motor Control, IEC > Overload Relays > Bulletin 193-T Bimetallic Overload Relays

Bulletin 193-T Bimetallic Overload Relays

Introduction

Standards Compliance and Certifications

Product Selection

Accessories

Specifications

Approximate Dimensions

Specifications

Thermal Overload Relays

Circuit Diagrams

1-phase

2-phase

3-phase

Trip Characteristics

These trip characteristics refer to IEC 60947 and are average values from cold start at an ambient temperature of 20 °C. Trip time is pictured as a function of operating current. With the device at normal operating temperature, the trip time decreases to approximately 25% of the shown value.

Cat. Nos. 193-TA…, 193-TB…, 193-TC…

Cat. No. 193-TDC90

Thermal Overload Relays, Continued

Main Circuits
Cat. Nos.			193-TA…	193-TB…	193-TC…	193-TDC90
Rated isolation voltage U_i		[V]	690			1000
Rated surge withstand U_imp		[kV]	6			8
Rated operating voltage U_e		[V]	690			1000
Overvoltage category/pollution degree			III/3
Safe isolation (between main circuit and auxiliary contacts per DIN, VDE 106, Part 101 and Part 101 A1		[V]	440
Current setting range			0.1…24	18…45	18…60 (75)	70…90
Direct load loss (for 3 current paths)
min. value of adjustment range		[W]	2.5	3	3 (7)	16
max. value of adjustment range		[W]	6	7.5	7.5 (10)	23
Wiring cross section Type of clamp
Terminal screws			M 4	M 6		M 8
	multi-strand conductor with ferrule	[mm²]	2 x (1…4)	1 x 25 / 2 x (1…10)		50
	solid conductor multi-strand conductor solid or multi-strand	[mm²]	2 x (1…6) — 14… 8	2 x (1… 16) — 14… 2		16
		[mm²]				50
		[AWG]				2
Flexible bus [mm]			—	—		6 x 9 x 0.8
Recommended tightening torque		[Nm] [lb-in]	1.8 (16)	3.5 (31)		6 (54)
Pozidrive screwdriver		Size	2			—
Slotted screwdriver		[mm]	1 x 6			—
Hex-head screw		[mm]	—			4

General
Cat. Nos.		193-TA…	193-TB…	193-TC…	193-TDC90
Weight	[kg (lbs)]	0.130 (0.29)	0.210 (0.46)	0.210 (0.46)	1.300 (2.86)
Standards		IEC 60947, DIN VDE 0660
Approvals		CE, UL Listed, CSA, PTB, RINA
Climatic withstand		humid/warm, constant, per DIN, IEC 68, Part 2-3 humid/warm, cyclic, per DIN, IEC 68, Part 2-30
Ambient temperature	open enclosed	–25…+50°C (–13…122°F)
		–25…+40°C (–13…104°F)
Temperature compensation		continual
Shock withstand (Sin impact 10 ms)	[G]	10
Protection class		IP00
		IP2X when attached
Contact protection		Finger- and back of hand proof (VDE 0106, Part 100)

Control Circuits
Cat. Nos.			193- TA…	193- TB…	193- TC…	193- TDC90
Rated isolation voltage Ui		[V]	500
Rated surge withstand Uimp		[kV]	6
Rated operating voltage Ue		[V]	500
Overvoltage category/pollution degree			III/3
Rated operating current Ie
AC-15	220…240V	[A]	1.5		1.5
	380…415V	[A]	0.5		0.9
	500V	[A]	0.5		0.8
DC-13	24V	[A]	0.9		0.9
	60V	[A]	0.75		0.75
	110V	[A]	0.4		0.4
	220V	[A]	0.2		0.2
Safe isolation (between auxiliary contacts) per DIN, VDE 106, and Part 101 A1		[V]	240
Conventional thermal current Ith		[A]	6
Short circuit withstand without welding, fuse gL		[A]	6
Wiring cross section Type of clamp
Terminal screw			M 3.5
	multi-strand conductor with ferrule	[mm²]	2 x (0.75…2.5)
	solid conductor solid or multi-strand	[mm²]	2 x (0.75…4) 18…14
		[AWG]
Recommended tightening torque		[Nm (lb-in)]	1.2 (11)
Pozi-driv screwdriver		Size	2
Slotted screwdriver		[mm]	1 x 6