ABB NF44E-13 – 4‑pole control relay for reliable panel interlocking and signal switching

The ABB NF44E-13 is a compact, industrial-grade control relay built for everyday panel logic—things like interlocks, permissives, and status signaling that, in many cases, don’t need a full power contactor. From my experience, the NF series is a safe pick when you want stable coil behavior, clean contact switching, and straightforward DIN-rail installation. You might notice the “E” suffix here, which typically indicates screw clamp terminals, and the “-13” variant is commonly used where you want a 1NO + 3NC contact mix on a 4‑pole relay.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express delivery options: FedEx, UPS, DHL

Key Features

• 4‑pole control relay core – Ideal for interlocking, signaling, and PLC isolation where you want mechanically linked contacts and solid lifecycle.
• “-13” contact mix – Typically 1 normally open + 3 normally closed contacts, handy for safety chains and permissive logic.
• “E” screw terminals – Secure, finger‑safe terminal layout that seems to be favored by maintenance teams for quick tightening and visual inspection.
• DIN-rail friendly – Snaps onto a 35 mm DIN rail; panel/screw mounting is usually available if your layout calls for it.
• Control categories AC‑15 / DC‑13 – Designed for control-circuit duty; in most cases you get predictable switching at common control voltages.
• Compact footprint – Saves space in dense cabinets; typically lighter than power contactors while giving you 4 independent poles.
• Coil options per variant – Often available in 24 V AC/DC, 110…120 V AC, or 220…240 V AC; we confirm the exact coil code before shipping.

Technical Specifications

Where it fits best

• Motor interlocks and permissives – Use the 3 NC legs for hold‑off conditions and the NO leg for status or enable.
• PLC isolation – Clean separation between field wiring and low‑power I/O, especially in AC‑15/DC‑13 duty.
• Panel upgrades – When you need more contacts without moving to a larger power contactor footprint.

One thing I appreciate is how the NF series tends to keep wiring tidy—terminals are intuitive and the device sits well on DIN rail without wobble. Feedback from a recent user in a bottling plant was simple: “Swapped from mixed relays to ABB NF to standardize spares; wiring labels lined up better and troubleshooting is faster now.”

Related or Supporting Products

• ABB NF22E-11 – 4‑pole control relay, typically 2 NO + 2 NC; good when you want a balanced contact mix.
• ABB NF40E-11 – Similar form factor with different contact arrangement; chosen when you need more NO paths.
• ABB CR-M series – Plug‑in industrial relays for socket mounting; useful if you prefer socket-based maintenance.
• ABB AF09-30-10 – If you actually need power switching (motor contactor), this is a step up from a control relay.
• Terminal markers and jumpers – ABB accessories for labeling and quick commoning across adjacent devices.

Installation & Maintenance

• Cabinet environment – Use a ventilated enclosure; follow standard clearances. In many cases, −25…+55 °C ambient is acceptable for control duty.
• Mounting – Clip to a 35 mm DIN rail or screw mount to a backplate. Keep vibration low; avoid cable strain on the coil terminals.
• Wiring – Use ferrules where possible. Torque screws to manufacturer guidance; segregate control and power wiring to reduce noise.
• Safety – De‑energize the coil and verify isolation before service. Lockout/tagout where required.
• Routine care – Periodically check terminal tightness and contact wear indicators. Clean dust from the enclosure; if firmware isn’t applicable, there’s nothing to update.
• Spare policy – Stock at least one unit per panel section; relays are inexpensive downtime insurance.

Quality & Certifications

• Certifications: CE, cULus, RoHS (typical for ABB control relays; specific files available on request)
• Manufacturing quality: Produced under ISO 9001 quality systems
• Warranty: 365 days from delivery

If you need us to confirm the exact coil voltage and contact arrangement stamped on NF44E-13 for your order, we’ll verify the factory code before invoicing so the unit lands perfectly matched to your panel standard.