Chassis Mount SLT Series Isolated 277 V / 120 V Step down Transformers Allows Installers to Derive a Fully Isolated 120 V Source from a 277 V Line Ideal for power task lighting and service receptacles. General Specifications Power - 300, 450, 600, and 1000 VA ratings Dielectric Strength - 4000 V Primary: 277 V, 60 Hz Secondary: 120 V with taps at 115 V and 125 V for high/low line adjustment Insulation System - UL 1446 Class F (155 C) Leakage Current - <30 uA Touch Safe terminals (IP20 type) offer a screw/binding clamp for hard wiring and 3/16 and 1/4 Fast-On connections Flame Rating - UL 94-V0 Agency Certifications UL 1446 File E66312 Compliant with the following domestic and international standards: UL5085-1-2, UL 506, UL 60950, UL 197, UL 1262 IEC 60950, IEC 61558-2-4, IEC 61010-1 CSA 22.2 66-1-2 VDE 0570, 0605, 0551, 0550 CE RoHS Compliant belfuse.com/signalSLT Series Datasheet Part Number Selection VA Sec RMS Part Number Size Rating SLT-300 300 120 V 2.5 A SLT-450 450 120 V 3.8 A SLT-600 600 120 V 5.0 A SLT-1000 1000 120 V 8.33 A Mechanical Specifications L W H A B C ML MW Weight Part Mounting Screw Number Inches (mm) lbs (kg) 4.20 4.08 3.75 1.33 0.62 3.12 2.50 3.12 7.0 SLT-300 10 (106.68) (103.51) (95.3) (33.8) (15.9) (79.4) (63.5) (79.4) (3.18) 4.46 4.33 4.50 1.33 0.75 3.75 3.00 3.25 11.0 SLT-450 10 (113.28) (110) (114.3) (33.8) (19.1) (95.3) (76.2) (82.6) (5) 4.46 5.08 4.50 1.33 0.75 3.75 3.00 4.06 14.3 SLT-600 10 (113.28) (129.03) (114.3) (33.8) (19.1) (95.3) (76.2) (103.2) (6.49) 4.89 5.70 5.25 1.33 0.87 4.37 3.50 4.68 22.0 SLT-1000 1/4 (124.20) (144.78) (133.4) (33.8) (22.2) (111.1) (88.9) (119.1) (10.0) Modular terminal with 3/16 with optional 1/4 quick connect and screw-clamp connection capabilities. Clearance slot (4) for mounting screw For lower voltage applications contact: techhelp signaltransformers.com RoHS Compliant Custom versions available upon request. 128 Atlantic Avenue, Lynbrook, NY 11563 Toll Free 866-239-5777 Tel 516-239-5777 Fax 516-239-7208 sales signaltransformer.com techhelp signaltransformer.com belfuse.com/signal 2019 Signal Transformer Specifications subject to change without notice SLT Series 12.19