Schneider Electric ABE7H16C21 Modicon ABE7 Passive I/O Sub-Base
Manufacturer: Schneider
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Part Number: ABE7H16C21
Condition：New with Original Package
Product Type: Discrete I/O Sub-Bases
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Schneider Electric ABE7H16C21 Modicon ABE7 Passive Discrete I/O Sub-Base
The Schneider Electric ABE7H16C21 is a miniature passive discrete I/O connection sub-base from the Modicon ABE7 range. Operating on a 19 to 30 VDC supply conforming to IEC 61131-2, it provides 16 channels for either discrete inputs or outputs with 2 screw-type terminals per channel and integrated green status LEDs.
Channel Configuration and Electrical Protection
Arranged in 2 horizontal rows, the sub-base supports either 0 V or 24 V polarity distribution across its 16 channels. Each channel is rated for 0.5 A, with a maximum current of 1.8 A per output common and 1.8 A maximum total supply current. A 2 A fast-blow internal fuse (5 x 20 mm) protects the PLC end against short circuits, introducing a 0.3 V voltage drop across the power supply fuse.
Field Wiring and Mounting
Screw-type terminals accept solid conductors from 0.14 to 2.5 mm2 (AWG 26 to AWG 12) or flexible conductors with cable ends from 0.09 to 1.5 mm2 (AWG 28 to AWG 16), tightened to 0.6 N-m using a flat 3.5 mm screwdriver. The sub-base mounts via clips onto a 35 mm symmetrical DIN rail or by screws onto a solid plate using a fixing kit.
| Parameter | Specification |
|---|---|
| Model | ABE7H16C21 |
| Brand | Schneider Electric |
| Product Range | Modicon ABE7 |
| Product Type | Passive Discrete I/O Sub-Base (Miniature) |
| Number of Channels | 16 (inputs or outputs, 2 terminals per channel) |
| Terminal Layout | 2 horizontal rows, screw-type terminals |
| Rated Supply Voltage | 19–30 VDC (conforming to IEC 61131-2) |
| Polarity Distribution | 0 V or 24 V |
| Maximum Supply Current | 1.8 A |
| Current per Channel | 0.5 A (1.8 A max per output common) |
| Short-Circuit Protection | 2 A fast-blow internal fuse, 5 x 20 mm (PLC end) |
| Fuse Voltage Drop | 0.3 V |
| Status Indicators | 1 green LED per channel + 1 green power ON LED |
| Rated Insulation Voltage | 2,000 V (Installation Category II, IEC 60664-1) |
| Solid Wire Capacity | 1 x 0.14–2.5 mm2 (AWG 26–12); 2 x 0.2–2.5 mm2 (AWG 24–14) |
| Flexible Wire Capacity (with ferrule) | 1 x 0.09–1.5 mm2 (AWG 28–16); 2 x 0.09–0.75 mm2 (AWG 28–20) |
| Flexible Wire Capacity (without ferrule) | 1 x 0.14–2.5 mm2 (AWG 26–14) |
| Tightening Torque | 0.6 N-m (flat 3.5 mm screwdriver) |
| Mounting Mode | 35 mm symmetrical DIN rail (clips) or solid plate (screws with fixing kit) |
| Product Weight | 0.205 kg |
Frequently Asked Questions
Q: Can the ABE7H16C21 be used for both PLC discrete inputs and outputs? A: Yes, it is a passive connection sub-base designed to wire 16 discrete inputs or outputs, supporting 0 V or 24 V polarity distribution with up to 0.5 A per channel.
Q: What internal fuse is installed in the ABE7H16C21 for PLC-side protection? A: It uses a 2 A fast-blow internal fuse measuring 5 x 20 mm at the PLC end, with a voltage drop of 0.3 V across the fuse.
Q: What wire sizes and tightening torque apply to the screw terminals? A: Single-wire connections support 0.14 to 2.5 mm2 solid or 0.09 to 1.5 mm2 flexible conductors with cable ends, tightened to 0.6 N-m using a flat 3.5 mm screwdriver.