16A 3-Pole Lockable Rotary Isolator, 48x48mm Front
The EMAS PSA016AK341E is a 16A, 3-pole rotary cam isolator for panel-door or front-plate mounting, with a red/yellow safety handle that can be padlocked in the OFF position. It is the right choice for three-phase equipment where only the three line conductors are switched, giving a clear 0-1 switching position with a positive 90° throw. Typical loads are small machines, pumps, fans and heaters.
MPN PSA016AK341E
- 16A, 3 poles - AC21A rating at up to 690V insulation voltage
- Padlockable safety handle - red/yellow handle locks off in the 0 position before maintenance
- 48x48mm front plate - built to TS EN 60947-3, 6kA short-circuit breaking capacity (Ics)
- Surface-mount option - fit it into an EMAS IP65 PSK enclosure (PSK11E or PSK12E, 10-25A) for a wall-mounted isolator
Downloads: EMAS PSA016AK341E datasheet (PDF)
Technical Details
Frequently Asked Questions
Can it be locked off for maintenance?
Yes. The red/yellow safety handle can be padlocked in the OFF (0) position, so the isolator can form part of a lockout-tagout procedure.
Should I choose 3 poles or 4 poles?
Use a 3-pole isolator where only the three phase conductors need breaking, and a 4-pole isolator where the neutral must be switched too.
Can I mount it on a wall instead of a panel door?
Yes. Fit it into the matching EMAS IP65 surface enclosure, PSK11E or PSK12E, 10-25A, to make a self-contained wall-mounted isolator.
Is it suitable for switching motors directly?
It is rated AC21A, which covers resistive and slightly inductive loads at full current. Use it as an isolator for motor circuits, with a contactor or motor protection switch doing the on-load starting and overload protection.
Industry Applications
- Machine isolation - a lockable local isolator on machine tools, pumps and conveyors
- Panel builders and OEMs - compact 48x48mm door-mounted isolator for control panels
- Heating and process plant - safe isolation of heater banks and process equipment before maintenance
Need a different rating? See the EMAS PSA016AK241E (16A 2-pole) or PSA032AK341E (32A) or PSA063AK341E (63A).