ABB RH916RB – DIN-rail Relay Socket for 16A Plug‑in Relays in Control Panels

The ABB RH916RB is, in practice, a rugged relay base designed for 16A plug‑in power relays used across machinery, process skids, and OEM control cabinets. From my experience, the appeal here is simple: clean wiring, a secure latch for the relay, and a footprint that drops onto standard 35 mm DIN rail without fuss. It fits nicely when you need field‑replaceable relays and want to keep maintenance time short.

You might notice that the RH916RB keeps things passive—no onboard electronics—so it’s dependable, and typically easier to approve for use alongside a variety of coil/suppression options. A packaging OEM told us they liked how the base makes swap‑outs quick during night shifts, reducing unplanned stops when a relay ages out.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in‑stock items; no more than one month at the latest
• Payment method: 50% advance payment; full payment before delivery
• Express delivery methods: FedEx, UPS, DHL

Key Features

• DIN-rail mount (35 mm) – Quick installation in standard control panels; panel screw mounting is typically possible if needed.
• For 16A plug‑in relays – Suited for power circuits where a replaceable relay and robust terminals matter.
• Secure relay retention – Mechanical latch/retainer helps keep the relay seated under vibration in many cases.
• Clear wiring layout – Terminal arrangement supports straightforward labeling and maintenance checks.
• Passive base, no power needed – Works with the coil/suppression solution you choose (RC/diode/varistor modules, as appropriate for the relay coil).
• Industrial build – ABB’s relay hardware is known for consistent terminal clamping and contact integrity over time.

Technical Specifications

Related or Supporting Products

• ABB plug‑in power relays (16A class) – Pair the RH916RB with an ABB 16A plug‑in relay variant matching your coil voltage and contact needs.
• Pluggable suppression/indicator modules – RC/diode/varistor modules and LED indicators for the selected relay coil, which typically extend relay life and aid diagnostics.
• ABB CR-P or CR-M interface relays – If you need slimmer signal‑level switching (6–10A class) with separate socket families.

Installation & Maintenance

• Panel environment – Install on 35 mm DIN rail in a dry, ventilated enclosure. Keep separation from high‑heat sources and high‑EMI devices where practical.
• Wiring – Use appropriately rated conductors and ferrules; torque terminals per ABB datasheet. Route coil and load wiring to minimize noise coupling.
• Relay seating – Ensure the relay is fully inserted and the retainer engaged. From my experience, this reduces vibration‑related issues in mobile or press machinery.
• Protection – Fit a suitable coil suppression module (RC/diode) to reduce contact wear and PLC output stress; choose type according to coil voltage and DC/AC.
• Routine checks – Periodically re‑tighten terminals, inspect for heat discoloration, and swap aged relays on hour‑count or cycle‑count intervals common to your process.
• Firmware – Not applicable; the base is a passive component.

Quality & Certifications

• Conformity – ABB relay hardware is typically CE compliant and RoHS aligned for industrial markets.
• Warranty – 365‑day warranty from our side; manufacturer terms apply in addition.

If you’re matching an existing panel standard, tell us your relay coil voltage and contact form. We’ll confirm RH916RB suitability and propose the corresponding ABB plug‑in relay and suppression module so the set arrives ready to install.