NOARK · UL 1053 RCCB, 16–63A, 2P/4P
Product overview
Original NOARK L1H UL 1053 residual-current device with 22mA pickup, A-SI electromagnetic operation and 60Hz supply. Select the supported pole/voltage version and rated current.
Technical selection summary
| Manufacturer / series | Original NOARK L1H |
|---|---|
| Standards | UL 1053; IEC/EN 61008-1; GB/T 16916.1 as stated by the manufacturer |
| Rated current | 16, 25, 40 or 63A |
| Pole / voltage versions | 2P: AC120V or AC277V; 4P: AC480V |
| Frequency | 60Hz |
| Ground-fault pickup | 22mA |
| Residual-current type | A-SI (Super Immune); electromagnetic trip |
| Current withstand | 10kA; this is a withstand rating, not an integral overcurrent interrupting rating |
| Maximum backup fuse | 100A gG/gL |
| Rated impulse withstand | 4kV (1.2/50 microseconds) |
| Endurance | 2000 electrical / 2000 mechanical cycles |
This UL 1053 residual-current device requires coordinated overcurrent protection. Do not treat it as a UL 943 Class A personnel-protection GFCI or as a circuit breaker with integral overload/short-circuit protection. Use the exact pole/voltage catalogue code.
Typical applications
- Residual-current protection of equipment circuits within the documented UL 1053 application.
- Industrial distribution assemblies with separate coordinated overload and short-circuit protection.
Specify your enquiry
For a focused quotation, include:
- Selected model, poles, current and all applicable configuration options.
- Actual system voltage, frequency, protection duty and required accessories.
- Quantity, installation conditions, destination and required product documentation.
Download NOARK L1H catalogue (PDF)
Product reference images and drawings
