DS200DCPAG1A | GE Speedtronic DIO | In Stock

Description

Product Introduction

The GE DS200DCPAG1A is a high-current digital combinational I/O module for the Mark V Speedtronic turbine control system. It provides 16 digital inputs and 8 relay outputs with 8 A contact rating – double the current capability of the standard DCPAG1 (4 A). This module is designed for direct control of power contactors, small motors, and heating elements.

Core advantage: The G1A revision uses 8 A, Form C relays with silver-tin oxide contacts (resists welding). Standard DCPAG1 (4 A) requires external interposing relays for loads above 4 A. The DCPAG1A drives them directly. Inputs accept 24-250 V DC (universal). Field data shows the DCPAG1A reduces panel space by 30% by eliminating external interposing relays.

Key Technical Specifications

Key Selling Points & Differentiators

• 8 A relay contacts – double the standard – Drives power contactors, small motors (up to 1 HP at 240 V AC), and heaters directly. No external interposing relays.
• Silver-tin oxide contacts – Resists welding from inrush currents. Standard silver-cadmium contacts (DCPAG1) weld under high inrush.
• Form C (SPDT) with NC and NO – Same as DCPAG1. Fail-safe NC contact for motor control circuits.
• Heavy-duty terminal blocks – Accepts 12 AWG wire for high-current outputs.
• Socketed relays – Field-replaceable without soldering (larger relay footprint than DCPAG1).
• Output status LEDs – Visual indication of relay state.
• Live tested with 8 A resistive load – Each relay cycled 5,000 times at 8 A, 250 V AC. Contact resistance monitored.
• 30-day warranty with cross-ship – Input failure or relay welded? We send replacement same day.

Frequently Asked Questions (FAQ)

Q: What is the difference between DS200DCPAG1 (4 A) and DS200DCPAG1A (8 A)?
A: Contact rating, contact material, and coil current. DCPAG1: 4 A, silver-cadmium, 40 mA coil. DCPAG1A: 8 A, silver-tin oxide, 60 mA coil. The G1A also draws 60 mA more logic current (480 mA vs 420 mA). For loads above 4 A (e.g., 1 HP motor at 240 V draws 5-6 A), use G1A. For smaller loads, G1 is sufficient.

Q: Can I replace a DCPAG1 with a DCPAG1A without wiring changes?
A: No – terminal blocks are different. The DCPAG1A uses larger terminal blocks for outputs (accepts 12 AWG vs 14 AWG). The pinout is also different because the larger relays occupy more board space. You must rewire each output. The input terminal block is the same (16 inputs, 14 AWG).

Q: How do you test the 8 A contacts on refurbished boards?
A: We cycle each relay 5,000 times at 1 Hz with an 8 A resistive load (250 V AC). Contact resistance must stay below 50 mΩ (new) and below 100 mΩ after 5,000 cycles. We also perform a weld test: short-circuit 8 A into the contact (no load limit) for 10 ms. Contact must not weld. About 10% of incoming DCPAG1A boards fail – contacts welded from previous over-current. Those are repaired (replace relay).

Q: I see a DCPAG1A board with a blue sticker near the relays. What does that mean?
A: The blue sticker indicates the board received an additional “motor starting” test: 10,000 cycles switching a 0.5 HP motor (240 V AC, locked rotor current 30 A). The silver-tin oxide contacts must survive without welding. Standard boards tested with resistive load only. Blue-sticker boards are for direct motor control. We charge an extra $30 for blue-sticker boards.

Q: My DCPAG1A board channel 3 relay chatters (buzzes) when energized. What failed?
A: The relay coil voltage may be low. The coil requires 24 V DC ±10%. Measure voltage across the coil terminals (pins). If voltage is below 21.6 V, the backplane 24 V supply is overloaded. The DCPAG1A draws 60 mA per relay – 8 relays = 480 mA total coil current. Add all boards in the rack. If the supply is adequate, the relay may have a mechanical defect. Replace the relay (Omron G7L-2A-SN, 24 V DC, available from us for $18).

Q: How do I identify a counterfeit DS200DCPAG1A?
A: Genuine boards have “DCPAG1A” printed on the edge connector label. The relays are Omron G7L-2A-SN (8 A, silver-tin oxide, 24 V DC coil). Counterfeits often use G7L-1A (8 A but Form A only) or G2R (4 A) with fake rating. Also check the terminal blocks: genuine has larger 12 AWC terminals (green) for outputs. Fakes may use standard 14 AWG terminals. We weigh the board – genuine is 150 g heavier than DCPAG1 due to larger relays.

Q: Can I use the DCPAG1A outputs for 250 V DC motor braking circuits?
A: No – relay contacts are rated 8 A at 30 V DC, but at 250 V DC, the maximum current is 0.2 A due to arc extinction limits. DC arcs do not self-extinguish like AC. For 250 V DC, use a DC-rated contactor (external) driven by the DCPAG1A output (the output switches the contactor coil, not the DC power). We sell DC contactors for $65.

Q: What is the expected life of the silver-tin oxide contacts at 8 A?
A: Rated electrical life: 50,000 operations at 8 A, 250 V AC, resistive load. For inductive loads (motors, contactors), derate to 20,000 operations. For tungsten lamps (high inrush), derate to 5,000 operations. For frequent cycling (>10 times per hour), use a solid-state output board (DCFBG series) with external 8 A SSR.

Q: Does the DCPAG1A have input open-wire detection?
A: No – same as DCPAG1. Simple input threshold detection only. For open-wire detection, use DCFBG1A (solid state outputs with diagnostics). The DCPAG1A is for high-current relay outputs where solid-state is not suitable (e.g., AC loads, high inrush).

Q: Do you offer a version with conformal coating for offshore use?
A: Yes – special order DS200DCPAG1AAB (acrylic coated). Lead time is 14-21 days. Cost adds 75. Coated version is recommended for offshore and coastal sites. The large relays are sealed, but the PCB and input optocouplers benefit from coating. For offshore, also specify gold-plated terminal block (30 extra) for input and output connections. The high-current outputs (8 A) require low-resistance connections – gold plating prevents corrosion-induced resistance rise.

AO810V20/4-20ma R=1000/500 1*8
A08150/4-20ma 1*8HART
“A08200/4-20mA,0-5V,0-10V R=500/10004* 1”