Westmaster Overload

Fixed Heater Thermal Overload Relays

Designed to comply with IEC947, BE EN 60947, IEC 292 and BS4941, this unit can be directly connected up to 22kW contactors. As an option, DIN rail mounting with incoming terminals and remote reset are available.

45mm Wide
Lockable F.L.C. Dial
Trip Indication
Single Phase Trip
Electrically Separate Contacts
IP20 Terminals
Remote Reset Available
DIN Rail Mounting Option
Ambient Temp. Compensation -20⁰C to +70⁰C
Hand or Auto Reset
Test Position

Rated Insulation Voltage : Frequency Limits (operating current) : Ambient Temperature Storage Limits : Trip Switch—Rated Thermal Current : Main Terminal Capacity Auxiliary Terminal Capacity	660V 40-400Hz -30⁰C to +80⁰C 6A I_th1 x 10mm² 2 x 1.5mm²
Weight - Overload Relay Weight - Freestanding Model Weight - Freestanding with Solenoid Reset	166g 246g 408g
Auxiliary Contact Rating AC15 to IEC947	Hand	Auto/Alarm
	650V 0.5A	650V 0.15A
	440V 1.0A	440V 0.25A
	250V 2.0A	250V 0.50A
	110V 4.0A	110V 1.00A
	48V 6.0A	48V 2.00A

Wiring Diagram	Time / Current Curves


	The time/current curve shown above is a typical Three Phase Tripping Curve

Ordering Information
Motor Full Load Current		Stop & Reset Ordering Code	Hand Reset Only Ordering Code	Max Fuse (A) for Type “C” & Type 2 Co-ordination 50kA Prospective.
Line Connected	Phase Connected On Star Delta Starters	Stop & Reset Ordering Code	Hand Reset Only Ordering Code	Motor Circuit	Industrial Type
0.14 - 0.20 A	0.24 - 0.35 A	OLWR00A	OLWT00A		2
0.20 - 0.30 A	0.35 - 0.52 A	OLWR00B	OLWT00B		2
0.30 - 0.45 A	0.52 - 0.78 A	OLWR00C	OLWT00C		2
0.45 - 0.70 A	0.78 - 1.20 A	OLWR00D	OLWT00D		4
0.70 - 1.10 A	1.20 - 1.90 A	OLWR00E	OLWT00E		4
1.10 - 1.80 A	1.90 - 3.10 A	OLWR00F	OLWT00F		10
1.80 - 2.70 A	3.10 - 4.70 A	OLWR00G	OLWT00G		10
2.70 - 4.00 A	4.70 - 6.90 A	OLWR00H	OLWT00H		16
4.00 - 7.00 A	6.90 - 12.10 A	OLWR00J	OLWT00J		20
7.00 - 10.50 A	12.10 - 18.20 A	OLWR00K	OLWT00K	20M32	32
10.50 - 16.00 A	18.20 - 27.70 A	OLWR00L	OLWT00L	32M40	40
16.00 - 22.50 A	27.70 - 39.00 A	OLWR00M	OLWT00M	32M50	50
22.50 - 32.00 A	39.00 - 55.00 A	OLWR00N	OLWT00N	63M80	80
32.00 - 40.00 A	55.00 - 69.00 A	OLWR00P	OLWT00P	63M80	80

Solenoid Reset Assembly
50Hz	60Hz	Ordering Code
12-24V		U-4145126
32-50V		U-4145127
55-92V	110-120V	U-4145128
110-127V		U-4145129
160-346V	200-380V	U-4145130
380-550V	400-600V	U-4145131

Free Standing Kit		U-4125155

	Installation & Servicing Instructions
	Standard Products Catalogue
	Westmaster Overload Sales Leaflet