Functional Devices, Inc. - Transformer Chart

Transformers ranging from 20VA to 375VA are foot and/or hub mounted. They are available with single or dual threaded hubs. Some are foot mounted only. Most are UL Listed or UL Component Recognized, and many are Class 2. Several transformers are provided with a circuit breaker. Pigtail wires are standard on all models and are up to 9.5” in length. All transformers utilize split-bobbin construction.

20 VA
40 VA
50 VA
75 VA
85 VA
100 VA
150 VA
175 VA
240 VA
300 VA
375 VA

GENERAL PURPOSE TRANSFORMERS
MODEL #	VA RATING	OVER CURRENT PROTECTION	CLASS 2	DESCRIPTION	MOUNTING
MODEL #	VA RATING	OVER CURRENT PROTECTION	CLASS 2	DESCRIPTION	FOOT	HUBS
20 VA TRANSFORMERS
TR20VA001	20VA	Inherently Limited	•	120 to 24Vac	•	1 Threaded
TR20VA002	20VA	Inherently Limited	•	208 to 24Vac	•	2 Threaded
TR20VA003	20VA	Inherently Limited		24 to 24Vac	•	1 Threaded
TR20VA007	20VA	Inherently Limited	•	277 to 24Vac	•	1 Threaded
40 VA TRANSFORMERS
TR40VA001	40VA	Inherently Limited	•	120 to 24Vac	•	1 Threaded
TR40VA002	40VA	Inherently Limited	•	120 to 24Vac	•	2 Threaded
TR40VA003	40VA	Inherently Limited	•	24 to 24Vac	•	1 Threaded
TR40VA004	40VA	Inherently Limited	•	277/240/208/120 to 24Vac	•	2 Threaded
TR40VA015	40VA	3 Amp Fuse	•	240/208/120 to 24Vac	•	1 Threaded
TR40VA022	40VA	Inherently Limited	•	120 to 24Vac 30" Secondary Wires	•	2 Threaded
TR40VA040	40VA	3 Amp Fuse	•	240/208/120 to 24Vac Dual Terminal Secondary	•	1 Threaded
50 VA TRANSFORMERS
TR50VA001	50VA	3 Amp Fuse	•	120 to 24Vac	•	1 Threaded
TR50VA002	50VA	3 Amp Fuse	•	120 to 24Vac	•	2 Threaded
TR50VA003	50VA	3 Amp Fuse	•	240/208 to 24Vac	•	2 Threaded
TR50VA004	50VA	Circuit Breaker	•	480/277/240/120 to 24Vac	•	2 Threaded
TR50VA005	50VA	Circuit Breaker	•	120 to 24Vac	•	1 Threaded
TR50VA006	50VA	3 Amp Fuse	•	277 to 24Vac	•	1 Threaded
TR50VA007	50VA	3 Amp Fuse	•	277 to 24Vac	•	2 Threaded
TR50VA008	50VA	Circuit Breaker		480/277/240/208 to 120Vac	•	2 Threaded
TR50VA009	50VA	Circuit Breaker	•	240/208/120 to 24Vac	•	2 Threaded
TR50VA014	50VA	Circuit Breaker	•	277 to 24Vac	•	1 Threaded
TR50VA015	50VA	Circuit Breaker	•	480/277/240/208/120 to 24Vac	•	1 Threaded
TR50VA016	50VA	Circuit Breaker	•	240/208/120 to 24Vac	•	1 Threaded
TR50VA017	50VA	Circuit Breaker	•	480/277/208 to 24Vac	•	1 Threaded
TR50VA018	50VA	Circuit Breaker	•	480/277/240/208 to 120 Vac	•	1, 90° Conduit Connector 1 Mounting Plate Opening
TR50VA019	50VA		•	277/120 to 24Vac	•	2 End-Bell Openings
75 VA TRANSFORMERS
TR75VA001	75VA	Circuit Breaker	•	120 to 24Vac	•	1 Threaded
TR75VA002	75VA	Circuit Breaker	•	120 to 24Vac	•	2 Threaded
TR75VA003	75VA	Circuit Breaker	•	277 to 24Vac	•	1 Threaded
TR75VA004	75VA	Circuit Breaker	•	480/240/208/120 to 24Vac	•	1 Threaded 1 Side Opening
TR75VA005	75VA	Circuit Breaker	•	480/240/208/120 to 24Vac	•	1 Threaded
TR75VA007	75VA	Circuit Breaker	•	480/240/208/120 to 24Vac	•	2 Threaded
85 VA TRANSFORMERS
TR85VA002	85VA	Inherently Limited		120 to 24Vac	•	1 Threaded
100 VA TRANSFORMERS
TR100VA001	100VA	Circuit Breaker	•	120 to 24Vac	•	1 Threaded
TR100VA002	100VA	Circuit Breaker	•	120 to 24Vac	•	2 Threaded
TR100VA002-20	100VA	Circuit Breaker	•	120 to 24Vac	•	2 Threaded
TR100VA004	100VA	Circuit Breaker	•	480/277/240/120 to 24Vac	•	2 Threaded
TR100VA005	100VA	Circuit Breaker	•	480/277/240/120 to 24Vac	•	1 Threaded
150 VA TRANSFORMERS
TR150VA001	150VA	Circuit Breaker		120 to 24Vac	•	1 Threaded
175 VA TRANSFORMERS
TR175VA001	175VA			240/208 to 24Vac	•	2 Bottom Openings
TR175VA002	175VA			120 to 24Vac	•	2 Threaded
TR175VA003	175VA			120 to 24Vac	•	1 Threaded
240 VA TRANSFORMERS
TR240VA001	240VA			120 to 24Vac	•	1 Threaded 1 Bottom Opening
300 VA TRANSFORMERS
TR300VA002	300VA	Circuit Breaker		480/240/208/120 to 24Vac	•	2 End-Bell Openings
375 VA TRANSFORMERS
TR375VA001	375VA			120 to 24Vac	•	2 Bottom Openings

	= UL Listed U.S. and Canada
	= UL Component Recognized, U.S. and Canada

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