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Thermal Unit Selection

 

For thermal unit selection tables for other devices including obsolete devices, consult Square D/Schneider Electric CIC at 1-888-SquareD (1-888-778-2733).

 

 

Table 16.383:

Thermal Unit Selection

Controller					Thermal Unit Selection Table Number
					Hand Reset Melting Alloy			Bimetallic
Starter Type	Class	Type	Seriesa	Size	Standard Trip (20)	Quick Trip (10)	Slow Trip (30)	Non- Compensated	Compen- sated
Manual Starters FHP	2510 2512 8908	F	A	FHP	43h	—	—	—	—
Manual Starters (Small Enclosure)	2510	M, T	A	M–0 M–1 M–1P	1    1    1	72 72 72	j j j	— — —	— — —
Manual Starters (Large Enclosure)	2510 2511 2512 8925	M, T	A	M–0 M–1 M–1P	2    2    2	73 73 73	j j j	— — —	— — —
DC Magnetic Starters	7135 7136 7735 7736	C, D	—	1, 2	65	—	j	—	—
		E	—	3	9	—	—	—	—
		F	—	4	10	—	—	—	—
		G	—	5	12	—	—	—	—
AC Magnetic Starters (Small Enclosure)	8536 8904b (Starter In Own Enclosure)   8933   8998 8999 (Model 3 Control Center) I-LINE® and QMB Motor Starter Centers	A (8536 only)	B, C	00	17h	—	—	—	—
		SA	A, B	00	13	—	j	—	—
		SB	A	0	13	74	j	8	33
		SC	A	1	13	74	j	8	33
			A	1P	41	—	j	—	—
		SD	A	2	56	75	j	62	70
		SE	A	3	18	76i	134ij	63	37g
			B	3	—	—	—	142g	—
		SF	A	4	54	77i	—	11	29g
			B	4	—	—	—	144g	—
		SG	A	5	49	—	—	38	46
			Bl	5	59	83	—	23	42
		SH	A, B	6	21	—	—	39	47
	8998 8999 (Model 4 Control Center)	SC	A	1 Fusible	66	74	—	64	33
				1 Circuit Breaker	15	74	—
		SD	A	2 Fusible	67	75	—	57	70
				2 Circuit Breaker	58f	75	—
		SE	A	3 Small Enclosure	16	76i	134ij	51	37g