502-03551-02R0 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen 502-03551-02R0 is part of the PIC900 Drives series and provides 16 solid-state output points organized into 4 output groups. This drive supports a nominal AC source of 115 VAC and operates at 50 or 60 Hz. It has a fuse rating of 3 A at 250 VAC, uses a 25-pin card edge field connector, and allows a maximum current of 2 A per switch.
Internal Product Review
The 502-03551-02R0 is a Kollmorgen PIC900 solid-state output module with 16 output points in 4 groups. Technical design supports dependable switching with 2 A continuous per switch and 2830 VAC logic isolation. A strong choice for PIC900 drive systems requiring orderly channel allocation and stable output performance.
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Product Description:
The 502-03551-02R0 is an output board produced by Kollmorgen for the PIC900 Drives series. Installed inside a drive rack, it provides solid-state switching so the controller can actuate lamps, relays, or contactors on automated machinery without mechanical wear. By routing field power through isolated triacs, the board separates high-voltage lines from low-level logic, protecting the upstream processor and simplifying overall panel wiring in industrial automation.
Each board has 4 output groups with a total of 16 points and can dissipate 12.0 W of field power under full load. A replaceable fuse rated at 3 A, 250 VAC and housed in a 5 × 20 mm cartridge limits fault current on the incoming 115 VAC source. Logic and field domains are separated by a barrier tested to 2830 VAC, allowing the low-energy control lines to operate safely on standard ±5 V backplane power, where every channel draws 23 mA when energized. Each solid-state switch carries 2 A continuous for steady loads such as solenoids, while a short-term surge of 20 A for 2 cycles lets the output start filament lamps or transformers without nuisance trips. The minimum load current is 50 mA, so lightly loaded circuits must include a shunt resistor or indicator lamp to ensure conduction.
The drop across a conducting output is limited to 1.2 VAC @ 2 A RMS, minimizing heat rise on adjacent cards, and when the point is off the leakage is held to 6 mA @ 240 VAC so downstream devices remain inactive. All timing is compatible with an operating line frequency of 50/60 Hz ±5%, so the same board can be applied worldwide on 115 VAC single-phase feeders. Field wiring lands on 25-pin card edge with screw terminals, keeping the assembly compact while still allowing clear access for service. Because switching is purely solid-state, contact bounce is eliminated and the 2 A rating is maintained throughout the life of the PIC900 output stage.
