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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
6 pcs
|
6 pcs | On Request | 1 | On Request | On Request | 2026-02-25 06:16:38 | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Actuator Type | |
| Approval Agency | |
| Automotive Grade | |
| Breaker Type | |
| Current Rating | |
| Current Rating (Amps) | |
| DC Voltage Rating | |
| Electrical Life | |
| Illumination | |
| Industrial Grade | |
| Mechanical Life | |
| Medical Grade | |
| Military Grade | |
| Mounting Orientation | |
| Mounting Type | |
| Number of Poles | |
| Operating Temperature | |
| SVHC Present | |
| Short Circuit Withstand Rating | |
| Storage Temperature | |
| Tape & Reel | |
| Terminal Protection Degree | |
| Terminal Size Acceptability and Torque | |
| Trip Curve | |
| Vibration Resistance | |
| Voltage Rating | |
| Wire Connection |
The Altech Corporation 1BU25R is a 1-pole thermal magnetic supplementary protector from the R-Series. It is rated for 25A continuous current at 480V AC (277/480Y VAC) and provides a short circuit withstand rating of 10kA per UL 1077. The breaker uses a B trip curve and is designed for DIN rail mounting with a 17.5mm width per pole.
Key electrical specifications include a DC voltage rating of 48 VDC (self-certified) and an interrupting capacity of 10kA per IEC/EN 60898/60947-2. The device offers an electrical life of 6,000 cycles and a mechanical life of 10,000 cycles. It operates over a temperature range of -25°C to 60°C and can be stored from -25°C to 75°C.
Mechanically, the 1BU25R accepts copper wire only (60/75°C) with terminal sizes from 14-3 AWG (torque 17.5 lb-in) and 18-16 AWG (torque 25 lb-in). The terminal protection degree is IP20 at the front. It is vibration resistant to 3g (18-50Hz) and can be mounted in any plane. The device is approved to CE, cURus, and UL 1077 standards.
The 1BU25R is rated for 480V AC (277/480Y VAC) and 48 VDC (self-certified).
The short circuit withstand rating is 10kA per UL 1077.
The operating temperature range is -25°C to 60°C (-13°F to 140°F).
RoHS status is listed as RoHS3 Compliant, but this is unverified and should be treated as low confidence.
It uses DIN rail mounting.
It is approved to CE, cURus, and UL 1077 standards.