Why Choose the ABB NSL22E-81 Contactor Relay?
The ABB NSL22E-81, product code 1SBH103001R8122, is a compact and highly reliable DC-operated contactor relay designed for switching auxiliary and control circuits in industrial automation systems. Its four-pole configuration provides 2 normally open and 2 normally closed contacts, supporting control logic, signalling and electrical interlocking functions.
Part of the ABB NSL contactor relay series, the NSL22E-81 features a low-consumption DC coil suitable for direct control from compatible PLC outputs. Its solid-core magnetic circuit provides dependable operation, while mechanically linked auxiliary contacts support safety-related control-circuit designs in accordance with the applicable requirements of IEC 60947-5-1.
With a 24 V DC operating coil, a conventional free-air thermal current of 10 A and an AC-15 operational current of 4 A at 220–240 V AC, the NSL22E-81 is suitable for controlling contactor coils, interlocks, alarms and other auxiliary loads. Its 45 mm-wide design enables space-efficient DIN rail or panel installation.
Key Advantages
- Compact DC contactor relay for auxiliary and control circuits.
- 2 NO + 2 NC contact arrangement supports versatile control logic.
- 24 V DC low-consumption coil suitable for direct control by compatible PLC outputs.
- Mechanically linked auxiliary contacts support dependable contact-state monitoring.
- DIN rail or panel mounting provides flexible installation.
- Four contacts operate simultaneously from a single control signal.
Key Features
- ABB NSL contactor relay series.
- Four-pole configuration with 2 normally open and 2 normally closed contacts.
- 24 V DC control voltage.
- DC-operated solid-core magnetic circuit.
- 10 A conventional free-air thermal current.
- 4 A AC-15 operational current at 220–240 V AC.
- Mechanically linked contacts compliant with Annex L of IEC 60947-5-1.
- IP20 screw terminals for auxiliary and coil connections.
Efficient DC Control-Circuit Switching
DC-operated contactor relays such as the ABB NSL22E-81 use an electromagnetic coil to switch several auxiliary contacts simultaneously. This enables a PLC or other control device to operate interlocks, status circuits, alarms and contactor coils through one dependable switching component.
The NSL22E-81 uses a low-consumption coil and requires the specified polarity at its A1+ and A2− terminals. Its mechanically linked contacts, robust industrial temperature range and compact construction make it well suited to modern automation panels and safety-conscious control-system designs.
Typical Applications
- PLC-controlled industrial automation systems.
- Electrical interlocking and control logic.
- Motor starter control circuits.
- Machine status, alarm and signalling circuits.
- Conveyor and material handling equipment.
- Industrial control panels and distribution assemblies.
