Product Details
Configured for signal routing and physical wiring termination in S500 I/O system platforms, the ABB TU516 1SAP212000R0001 (TU516 I/O Terminal Unit) provides direct physical/electrical execution for analog and 24 VDC digital modules via spring connection terminals. Operating under an IP20 protection rating across ambient temperatures from 0 to +60 deg C, the 0.159 kg base unit anchors modular I/O expansion modules onto standard DIN rails. The 67.5 mm x 135 mm x 28 mm hardware block establishes direct bus electrical contacts and field power distribution paths for 24 VDC sensor and actuator loops.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TU516 (1SAP212000R0001) |
| Base Model | TU516 |
| Brand | ABB |
| Origin | Germany |
| Weight | 0.159 kg |
| Dimensions | 67.5 mm x 135 mm x 28 mm (W x H x D) |
| Operating Temp | 0 deg C to +60 deg C (Storage: -40 deg C to +70 deg C) |
| Power Consumption | Passive base unit (24 VDC bus pass-through) |
| Compatible Modules | S500 analog and 24 VDC digital I/O modules |
| Terminal Type | Spring connection terminals |
| IP Rating | IP20 |
| Product Main Type | Distributed Automation I/Os |
Backplane Bus Communication Velocity and I/O Density Scaling
The terminal base maintains internal bus continuity to preserve backplane bus communication velocity across adjacent S500 expansion slots. High-density spring terminal layouts support maximum I/O density scaling inside control enclosures by eliminating external distribution blocks for 24 VDC supply lines. Firmware flash compatibility resides within the clipped-in processing module, allowing hot-swap module updates while the passive terminal unit remains wired in the field loop.
Frequently Asked Questions
Q: Does the terminal unit require tool-assisted screw tightening for field signal wiring?
A: No, field wiring connects via spring terminals designed for tool-less push-in conductor insertion and vibration-resistant clamping.
Q: Can the terminal unit be replaced without disconnecting field wiring from individual terminals?
A: The passive base unit is permanently wired to field cables; attached active I/O modules disconnect directly from the front face of the terminal unit without altering field wiring connections.
Field Installation Guidelines
- Mount the terminal unit onto a standard 35 mm DIN rail, verifying that the mechanical locking latch engages fully.
- Strip field wire insulation to specified lengths before inserting solid or ferruled conductors directly into the spring terminal points.
- Depress the spring actuator tab using a flat-head screwdriver when releasing flexible stranded wire conductors.
- Maintain IP20 ingress protection compliance by mounting the unit inside an IP54-rated lockable control enclosure.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Top 5 Operational Advantages of HMIs in Modern Factory Automation
Importance of Safety Barriers in PLC and DCS Control Systems
