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General Purpose Dry Type 600 Volts and Below

Open Core and Coil

Class 7400 / Refer to Catalog 7400CT9601

Open Core and Coil Transformers Designed for General Applications for 600 V and Below

Units are designed with 220° C insulation, aluminum windings, top terminations, compact design to save space, and are UL component recognized for:

●	Non-energy efficiency (less than 15 kVA) Single-phase 5–10 VA Three-phase 3–9 VA

●	Energy efficiency (meets Table 4-2 of NEMA TP1–2002) Single-phase 15–75 kVA Three-phase 15–112.5 kVA

Single-Phase Open Core and Coil Transformers—240 X 480 V Primary
120/240 V Secondary 60 Hz

kVA	Catalog No.	$ Price	Deg. C Temp. Rise	Full Capacity Taps	Dimensions a										Weight (lbs)	Figure
					A		B		C		D		Eb
					in	mm	in	mm	in	mm	in	mm	in	mm
5	5S1HFOC	2868.00	115	—	8.00	203	9.00	229	11.00	279	8.00	203	8.00	203	66	1
7.5	7S1HFOC	3062.00	115	—	8.00	203	9.00	229	14.25	362	8.00	203	8.50	216	80	1
10	10S1HFOC	3396.00	115	—	20.50	521	18.5	470	14.00	356	17.0	432	4.25	108	140	2
15	EE15S3HOC	3072.00	150	6–2.5% 2+4–b	20.50	521	18.5	470	14.00	356	17.0	432	4.25	108	140	2
25	EE25S3HOC	4151.00	150	6–2.5% 2+4–b	20.25	514	18.5	470	14.00	356	17.0	432	5.00	127	200	2
37.5	EE37S3HOC	5534.00	150	6–2.5% 2+4–b	22.00	559	18.5	470	18.00	457	17.0	432	5.50	140	255	2
50	EE50S3HOC	6731.00	150	6–2.5% 2+4–b	22.00	559	18.5	470	18.00	457	17.0	432	6.50	165	310	2
75	EE75S3HOC	9128.00	150	6–2.5% 2+4–b	22.25	565	28.0	711	22.00	559	27.0	686	8.50	216	460	2

 

a	Not for construction. Contact your local Schneider Electric sales office for certified prints.

b	When 240 V tap is used, there will be 3–5% taps, 1 above and 2 below.

 

Three Phase Open Core and Coil Transformers—480 V to 208Y/120

kVA	Catalog No.	$ Price	Degree C Temp. Rise	Dimensions a										Weight (lbs)	Figure
				A		B		C		D		Eb
				in	mm	in	mm	in	mm	in	mm	in	mm
9	9T3HFOC	3424.00	115	14.75	375	18.50	470	14.00	356	17.00	432	5.13	130	145	3
15	EE15T3HOC	4532.00	150	14.75	375	18.50	470	14.00	356	17.00	432	5.13	130	145	3
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