Overload Relays and Thermal Unit Selection – Catalog

9065CT9701R03/21

Contacts

Replaceable Contacts: The contact modules of Type S overload relays are replaceable.
Alarm Contacts: Contact modules with one normally open (N.O.) and one normally closed (N.C.) contact are available for Type S. Specify Form Y34-2, which indicates a four-terminal isolated contact module.

For these contact modules and the overload relay control-circuit contact ratings, see the table Contact Ratings and Power Circuit Voltage Ratings.

Vac—50 or 60 Hz							Vdc
Type	NEMA Contact Ratings	Volts A minimum of 110 V is recommended.*	Inductive, 35% Power Factor				Type	Form	Volts	Inductive / Resistive
			Make		Break					Make and Break (A)
			A	VA	A	VA				Make and Break (A)
SS, SSF, SR, ST	A600	120 240 480 600	60 30 15 12	7200 7200 7200 7200	6 3 1.5 1.2	720 720 720 720	—	—	—	—
SS, SSF, SR, ST	A600	120 240 480 600	60 30 15 12	7200 7200 7200 7200	6 3 1.5 1.2	720 720 720 720	—	—	—	—
SD & SE (Sizes 0–4 & 6), Class 9998 Type SO1, Class 9999 Type SO4 and SO5 Contact Modules	B600	120 240 480 600	30 15 7.5 6.0	3600 3600 3600 3600	3.0 1.5 0.75 0.6	360 360 360 360	SD & SE (Sizes 0–4 & 6)	Std.	—	—
							SD & SE (Sizes 0–4 & 6)	Y34 or Y342	125	0.22
							Class 9999 Type SO4 and SO5	Std.	125	0.22
							SS, SF, SR, ST	Std.	125 250	1.1 0.55

Vac—50 or 60 Hz							Vdc
Type	NEMA Contact Ratings	Volts A minimum of 110 V is recommended.*	Inductive, 35% Power Factor				Type	Form	Volts	Inductive / Resistive
			Make		Break					Make and Break (A)
			A	VA	A	VA				Make and Break (A)
SS, SSF, SR, ST	A600	120 240 480 600	60 30 15 12	7200 7200 7200 7200	6 3 1.5 1.2	720 720 720 720	—	—	—	—
SS, SSF, SR, ST	A600	120 240 480 600	60 30 15 12	7200 7200 7200 7200	6 3 1.5 1.2	720 720 720 720	—	—	—	—
SD & SE (Sizes 0–4 & 6), Class 9998 Type SO1, Class 9999 Type SO4 and SO5 Contact Modules	B600	120 240 480 600	30 15 7.5 6.0	3600 3600 3600 3600	3.0 1.5 0.75 0.6	360 360 360 360	SD & SE (Sizes 0–4 & 6)	Std.	—	—
							SD & SE (Sizes 0–4 & 6)	Y34 or Y342	125	0.22
							Class 9999 Type SO4 and SO5	Std.	125	0.22
							SS, SF, SR, ST	Std.	125 250	1.1 0.55

Contact Ratings and Power Circuit Voltage Ratings

Vac—50 or 60 Hz							Vdc
Type	NEMA Contact Ratings	Volts A minimum of 110 V is recommended.*	Inductive, 35% Power Factor				Type	Form	Volts	Inductive / Resistive
			Make		Break					Make and Break (A)
			A	VA	A	VA				Make and Break (A)
SS, SSF, SR, ST	A600	120 240 480 600	60 30 15 12	7200 7200 7200 7200	6 3 1.5 1.2	720 720 720 720	—	—	—	—
SS, SSF, SR, ST	A600	120 240 480 600	60 30 15 12	7200 7200 7200 7200	6 3 1.5 1.2	720 720 720 720	—	—	—	—
SD & SE (Sizes 0–4 & 6), Class 9998 Type SO1, Class 9999 Type SO4 and SO5 Contact Modules	B600	120 240 480 600	30 15 7.5 6.0	3600 3600 3600 3600	3.0 1.5 0.75 0.6	360 360 360 360	SD & SE (Sizes 0–4 & 6)	Std.	—	—
							SD & SE (Sizes 0–4 & 6)	Y34 or Y342	125	0.22
							Class 9999 Type SO4 and SO5	Std.	125	0.22
							SS, SF, SR, ST	Std.	125 250	1.1 0.55

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